Heinz Mauelshagen [Fri, 17 Oct 2014 11:38:50 +0000 (13:38 +0200)]
dm raid: ensure superblock's size matches device's logical block size
commit
40d43c4b4cac4c2647bf07110d7b07d35f399a84 upstream.
The dm-raid superblock (struct dm_raid_superblock) is padded to 512
bytes and that size is being used to read it in from the metadata
device into one preallocated page.
Reading or writing this on a 512-byte sector device works fine but on
a 4096-byte sector device this fails.
Set the dm-raid superblock's size to the logical block size of the
metadata device, because IO at that size is guaranteed too work. Also
add a size check to avoid silent partial metadata loss in case the
superblock should ever grow past the logical block size or PAGE_SIZE.
[includes pointer math fix from Dan Carpenter]
Reported-by: "Liuhua Wang" <lwang@suse.com>
Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Joe Thornber [Mon, 10 Nov 2014 15:03:24 +0000 (15:03 +0000)]
dm btree: fix a recursion depth bug in btree walking code
commit
9b460d3699324d570a4d4161c3741431887f102f upstream.
The walk code was using a 'ro_spine' to hold it's locked btree nodes.
But this data structure is designed for the rolling lock scheme, and
as such automatically unlocks blocks that are two steps up the call
chain. This is not suitable for the simple recursive walk algorithm,
which retraces its steps.
This code is only used by the persistent array code, which in turn is
only used by dm-cache. In order to trigger it you need to have a
mapping tree that is more than 2 levels deep; which equates to 8-16
million cache blocks. For instance a 4T ssd with a very small block
size of 32k only just triggers this bug.
The fix just places the locked blocks on the stack, and stops using
the ro_spine altogether.
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Mikulas Patocka [Thu, 16 Oct 2014 18:45:20 +0000 (14:45 -0400)]
dm bufio: change __GFP_IO to __GFP_FS in shrinker callbacks
commit
9d28eb12447ee08bb5d1e8bb3195cf20e1ecd1c0 upstream.
The shrinker uses gfp flags to indicate what kind of operation can the
driver wait for. If __GFP_IO flag is present, the driver can wait for
block I/O operations, if __GFP_FS flag is present, the driver can wait on
operations involving the filesystem.
dm-bufio tested for __GFP_IO. However, dm-bufio can run on a loop block
device that makes calls into the filesystem. If __GFP_IO is present and
__GFP_FS isn't, dm-bufio could still block on filesystem operations if it
runs on a loop block device.
The change from __GFP_IO to __GFP_FS supposedly fixes one observed (though
unreproducible) deadlock involving dm-bufio and loop device.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jan Kara [Thu, 30 Oct 2014 19:43:38 +0000 (20:43 +0100)]
block: Fix computation of merged request priority
commit
ece9c72accdc45c3a9484dacb1125ce572647288 upstream.
Priority of a merged request is computed by ioprio_best(). If one of the
requests has undefined priority (IOPRIO_CLASS_NONE) and another request
has priority from IOPRIO_CLASS_BE, the function will return the
undefined priority which is wrong. Fix the function to properly return
priority of a request with the defined priority.
Fixes:
d58cdfb89ce0c6bd5f81ae931a984ef298dbda20
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Helge Deller [Mon, 10 Nov 2014 20:46:18 +0000 (21:46 +0100)]
parisc: Use compat layer for msgctl, shmat, shmctl and semtimedop syscalls
commit
2fe749f50b0bec07650ef135b29b1f55bf543869 upstream.
Switch over the msgctl, shmat, shmctl and semtimedop syscalls to use the compat
layer. The problem was found with the debian procenv package, which called
shmctl(0, SHM_INFO, &info);
in which the shmctl syscall then overwrote parts of the surrounding areas on
the stack on which the info variable was stored and thus lead to a segfault
later on.
Additionally fix the definition of struct shminfo64 to use unsigned longs like
the other architectures. This has no impact on userspace since we only have a
32bit userspace up to now.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Christoph Hellwig [Mon, 3 Nov 2014 18:36:40 +0000 (19:36 +0100)]
scsi: only re-lock door after EH on devices that were reset
commit
48379270fe6808cf4612ee094adc8da2b7a83baa upstream.
Setups that use the blk-mq I/O path can lock up if a host with a single
device that has its door locked enters EH. Make sure to only send the
command to re-lock the door to devices that actually were reset and thus
might have lost their state. Otherwise the EH code might be get blocked
on blk_get_request as all requests for non-reset devices might be in use.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Meelis Roos <meelis.roos@ut.ee>
Tested-by: Meelis Roos <meelis.roos@ut.ee>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
William Cohen [Tue, 11 Nov 2014 14:41:27 +0000 (09:41 -0500)]
Correct the race condition in aarch64_insn_patch_text_sync()
commit
899d5933b2dd2720f2b20b01eaa07871aa6ad096 upstream.
When experimenting with patches to provide kprobes support for aarch64
smp machines would hang when inserting breakpoints into kernel code.
The hangs were caused by a race condition in the code called by
aarch64_insn_patch_text_sync(). The first processor in the
aarch64_insn_patch_text_cb() function would patch the code while other
processors were still entering the function and incrementing the
cpu_count field. This resulted in some processors never observing the
exit condition and exiting the function. Thus, processors in the
system hung.
The first processor to enter the patching function performs the
patching and signals that the patching is complete with an increment
of the cpu_count field. When all the processors have incremented the
cpu_count field the cpu_count will be num_cpus_online()+1 and they
will return to normal execution.
Fixes:
ae16480785de arm64: introduce interfaces to hotpatch kernel and module code
Signed-off-by: William Cohen <wcohen@redhat.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peng Tao [Wed, 5 Nov 2014 14:36:50 +0000 (22:36 +0800)]
nfs: fix pnfs direct write memory leak
commit
8c393f9a721c30a030049a680e1bf896669bb279 upstream.
For pNFS direct writes, layout driver may dynamically allocate ds_cinfo.buckets.
So we need to take care to free them when freeing dreq.
Ideally this needs to be done inside layout driver where ds_cinfo.buckets
are allocated. But buckets are attached to dreq and reused across LD IO iterations.
So I feel it's OK to free them in the generic layer.
Signed-off-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Simon Horman [Mon, 27 Oct 2014 00:14:30 +0000 (09:14 +0900)]
ata: sata_rcar: Disable DIPM mode for r8a7790 ES1
commit
aa1cf25887099bba68f1f3879c0d394e08b8779f upstream.
Unlike other SATA R-Car r8a7790 controllers the r8a7790 ES1 SATA R-Car
controller needs to be run with DIPM disabled.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stefan Richter [Tue, 11 Nov 2014 16:16:44 +0000 (17:16 +0100)]
firewire: cdev: prevent kernel stack leaking into ioctl arguments
commit
eaca2d8e75e90a70a63a6695c9f61932609db212 upstream.
Found by the UC-KLEE tool: A user could supply less input to
firewire-cdev ioctls than write- or write/read-type ioctl handlers
expect. The handlers used data from uninitialized kernel stack then.
This could partially leak back to the user if the kernel subsequently
generated fw_cdev_event_'s (to be read from the firewire-cdev fd)
which notably would contain the _u64 closure field which many of the
ioctl argument structures contain.
The fact that the handlers would act on random garbage input is a
lesser issue since all handlers must check their input anyway.
The fix simply always null-initializes the entire ioctl argument buffer
regardless of the actual length of expected user input. That is, a
runtime overhead of memset(..., 40) is added to each firewirew-cdev
ioctl() call. [Comment from Clemens Ladisch: This part of the stack is
most likely to be already in the cache.]
Remarks:
- There was never any leak from kernel stack to the ioctl output
buffer itself. IOW, it was not possible to read kernel stack by a
read-type or write/read-type ioctl alone; the leak could at most
happen in combination with read()ing subsequent event data.
- The actual expected minimum user input of each ioctl from
include/uapi/linux/firewire-cdev.h is, in bytes:
[0x00] = 32, [0x05] = 4, [0x0a] = 16, [0x0f] = 20, [0x14] = 16,
[0x01] = 36, [0x06] = 20, [0x0b] = 4, [0x10] = 20, [0x15] = 20,
[0x02] = 20, [0x07] = 4, [0x0c] = 0, [0x11] = 0, [0x16] = 8,
[0x03] = 4, [0x08] = 24, [0x0d] = 20, [0x12] = 36, [0x17] = 12,
[0x04] = 20, [0x09] = 24, [0x0e] = 4, [0x13] = 40, [0x18] = 4.
Reported-by: David Ramos <daramos@stanford.edu>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Kyle McMartin [Wed, 12 Nov 2014 21:07:44 +0000 (21:07 +0000)]
arm64: __clear_user: handle exceptions on strb
commit
97fc15436b36ee3956efad83e22a557991f7d19d upstream.
ARM64 currently doesn't fix up faults on the single-byte (strb) case of
__clear_user... which means that we can cause a nasty kernel panic as an
ordinary user with any multiple PAGE_SIZE+1 read from /dev/zero.
i.e.: dd if=/dev/zero of=foo ibs=1 count=1 (or ibs=65537, etc.)
This is a pretty obscure bug in the general case since we'll only
__do_kernel_fault (since there's no extable entry for pc) if the
mmap_sem is contended. However, with CONFIG_DEBUG_VM enabled, we'll
always fault.
if (!down_read_trylock(&mm->mmap_sem)) {
if (!user_mode(regs) && !search_exception_tables(regs->pc))
goto no_context;
retry:
down_read(&mm->mmap_sem);
} else {
/*
* The above down_read_trylock() might have succeeded in
* which
* case, we'll have missed the might_sleep() from
* down_read().
*/
might_sleep();
if (!user_mode(regs) && !search_exception_tables(regs->pc))
goto no_context;
}
Fix that by adding an extable entry for the strb instruction, since it
touches user memory, similar to the other stores in __clear_user.
Signed-off-by: Kyle McMartin <kyle@redhat.com>
Reported-by: Miloš Prchlík <mprchlik@redhat.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Joe Thornber [Fri, 10 Oct 2014 08:41:09 +0000 (09:41 +0100)]
dm thin: grab a virtual cell before looking up the mapping
commit
c822ed967cba38505713d59ed40a114386ef6c01 upstream.
Avoids normal IO racing with discard.
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Roger Quadros [Mon, 3 Nov 2014 10:09:52 +0000 (12:09 +0200)]
pinctrl: dra: dt-bindings: Fix output pull up/down
commit
73b3a6657a88ef5348a0d69c9a8107d6f01ae862 upstream.
For PIN_OUTPUT_PULLUP and PIN_OUTPUT_PULLDOWN we must not set the
PULL_DIS bit which disables the PULLs.
PULL_ENA is a 0 and using it in an OR operation is a NOP, so don't
use it in the PIN_OUTPUT_PULLUP/DOWN macros.
Fixes:
23d9cec07c58 ("pinctrl: dra: dt-bindings: Fix pull enable/disable")
Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Will Deacon [Tue, 4 Nov 2014 10:40:46 +0000 (11:40 +0100)]
ARM: 8191/1: decompressor: ensure I-side picks up relocated code
commit
238962ac71910d6c20162ea5230685fead1836a4 upstream.
To speed up decompression, the decompressor sets up a flat, cacheable
mapping of memory. However, when there is insufficient space to hold
the page tables for this mapping, we don't bother to enable the caches
and subsequently skip all the cache maintenance hooks.
Skipping the cache maintenance before jumping to the relocated code
allows the processor to predict the branch and populate the I-cache
with stale data before the relocation loop has completed (since a
bootloader may have SCTLR.I set, which permits normal, cacheable
instruction fetches regardless of SCTLR.M).
This patch moves the cache maintenance check into the maintenance
routines themselves, allowing the v6/v7 versions to invalidate the
I-cache regardless of the MMU state.
Reported-by: Marc Carino <marc.ceeeee@gmail.com>
Tested-by: Julien Grall <julien.grall@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Nathan Lynch [Mon, 10 Nov 2014 22:46:27 +0000 (23:46 +0100)]
ARM: 8198/1: make kuser helpers depend on MMU
commit
08b964ff3c51b10aaf2e6ba639f40054c09f0f7a upstream.
The kuser helpers page is not set up on non-MMU systems, so it does
not make sense to allow CONFIG_KUSER_HELPERS to be enabled when
CONFIG_MMU=n. Allowing it to be set on !MMU results in an oops in
set_tls (used in execve and the arm_syscall trap handler):
Unhandled exception: IPSR =
00000005 LR =
fffffff1
CPU: 0 PID: 1 Comm: swapper Not tainted 3.18.0-rc1-00041-ga30465a #216
task:
8b838000 ti:
8b82a000 task.ti:
8b82a000
PC is at flush_thread+0x32/0x40
LR is at flush_thread+0x21/0x40
pc : [<
8f00157a>] lr : [<
8f001569>] psr:
4100000b
sp :
8b82be20 ip :
00000000 fp :
8b83c000
r10:
00000001 r9 :
88018c84 r8 :
8bb85000
r7 :
8b838000 r6 :
00000000 r5 :
8bb77400 r4 :
8b82a000
r3 :
ffff0ff0 r2 :
8b82a000 r1 :
00000000 r0 :
88020354
xPSR:
4100000b
CPU: 0 PID: 1 Comm: swapper Not tainted 3.18.0-rc1-00041-ga30465a #216
[<
8f002bc1>] (unwind_backtrace) from [<
8f002033>] (show_stack+0xb/0xc)
[<
8f002033>] (show_stack) from [<
8f00265b>] (__invalid_entry+0x4b/0x4c)
As best I can tell this issue existed for the set_tls ARM syscall
before commit
fbfb872f5f41 "ARM: 8148/1: flush TLS and thumbee
register state during exec" consolidated the TLS manipulation code
into the set_tls helper function, but now that we're using it to flush
register state during execve, !MMU users encounter the oops at the
first exec.
Prevent CONFIG_MMU=n configurations from enabling
CONFIG_KUSER_HELPERS.
Fixes:
fbfb872f5f41 (ARM: 8148/1: flush TLS and thumbee register state during exec)
Signed-off-by: Nathan Lynch <nathan_lynch@mentor.com>
Reported-by: Stefan Agner <stefan@agner.ch>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alex Deucher [Wed, 5 Nov 2014 22:14:32 +0000 (17:14 -0500)]
drm/radeon: add missing crtc unlock when setting up the MC
commit
f0d7bfb9407fccb6499ec01c33afe43512a439a2 upstream.
Need to unlock the crtc after updating the blanking state.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alex Deucher [Mon, 3 Nov 2014 14:57:46 +0000 (09:57 -0500)]
drm/radeon: make sure mode init is complete in bandwidth_update
commit
8efe82ca908400785253c8f0dfcf301e6bd93488 upstream.
The power management code calls into the display code for
certain things. If certain power management sysfs attributes
are called before the driver has finished initializing all of
the hardware we can run into problems with uninitialized
modesetting state. Add a check to make sure modesetting
init has completed to the bandwidth update callbacks to
fix this. Can be triggered by the tlp and laptop start
up scripts depending on the timing.
bugs:
https://bugzilla.kernel.org/show_bug.cgi?id=83611
https://bugs.freedesktop.org/show_bug.cgi?id=85771
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jammy Zhou [Mon, 3 Nov 2014 13:58:20 +0000 (08:58 -0500)]
drm/radeon: set correct CE ram size for CIK
commit
dc4edad6530a9b7b66c3d905e2bc06021a05dcad upstream.
CE ram size is 32k/0k/0k for GFX/CS0/CS1 with CIK
Ported from amdgpu driver.
Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johannes Berg [Mon, 3 Nov 2014 12:57:46 +0000 (13:57 +0100)]
mac80211: fix use-after-free in defragmentation
commit
b8fff407a180286aa683d543d878d98d9fc57b13 upstream.
Upon receiving the last fragment, all but the first fragment
are freed, but the multicast check for statistics at the end
of the function refers to the current skb (the last fragment)
causing a use-after-free bug.
Since multicast frames cannot be fragmented and we check for
this early in the function, just modify that check to also
do the accounting to fix the issue.
Reported-by: Yosef Khyal <yosefx.khyal@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Luciano Coelho [Tue, 28 Oct 2014 11:33:05 +0000 (13:33 +0200)]
mac80211: schedule the actual switch of the station before CSA count 0
commit
ff1e417c7c239b7abfe70aa90460a77eaafc7f83 upstream.
Due to the time it takes to process the beacon that started the CSA
process, we may be late for the switch if we try to reach exactly
beacon 0. To avoid that, use count - 1 when calculating the switch time.
Reported-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Luciano Coelho [Tue, 28 Oct 2014 11:33:04 +0000 (13:33 +0200)]
mac80211: use secondary channel offset IE also beacons during CSA
commit
84469a45a1bedec9918e94ab2f78c5dc0739e4a7 upstream.
If we are switching from an HT40+ to an HT40- channel (or vice-versa),
we need the secondary channel offset IE to specify what is the
post-CSA offset to be used. This applies both to beacons and to probe
responses.
In ieee80211_parse_ch_switch_ie() we were ignoring this IE from
beacons and using the *current* HT information IE instead. This was
causing us to use the same offset as before the switch.
Fix that by using the secondary channel offset IE also for beacons and
don't ever use the pre-switch offset. Additionally, remove the
"beacon" argument from ieee80211_parse_ch_switch_ie(), since it's not
needed anymore.
Reported-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johannes Berg [Tue, 21 Oct 2014 18:56:42 +0000 (20:56 +0200)]
mac80211: properly flush delayed scan work on interface removal
commit
46238845bd609a5c0fbe076e1b82b4c5b33360b2 upstream.
When an interface is deleted, an ongoing hardware scan is canceled and
the driver must abort the scan, at the very least reporting completion
while the interface is removed.
However, if it scheduled the work that might only run after everything
is said and done, which leads to cfg80211 warning that the scan isn't
reported as finished yet; this is no fault of the driver, it already
did, but mac80211 hasn't processed it.
To fix this situation, flush the delayed work when the interface being
removed is the one that was executing the scan.
Reported-by: Sujith Manoharan <sujith@msujith.org>
Tested-by: Sujith Manoharan <sujith@msujith.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Junjie Mao [Tue, 28 Oct 2014 01:31:47 +0000 (09:31 +0800)]
mac80211_hwsim: release driver when ieee80211_register_hw fails
commit
805dbe17d1c832ad341f14fae8cedf41b67ca6fa upstream.
The driver is not released when ieee80211_register_hw fails in
mac80211_hwsim_create_radio, leading to the access to the unregistered (and
possibly freed) device in platform_driver_unregister:
[ 0.447547] mac80211_hwsim: ieee80211_register_hw failed (-2)
[ 0.448292] ------------[ cut here ]------------
[ 0.448854] WARNING: CPU: 0 PID: 1 at ../include/linux/kref.h:47 kobject_get+0x33/0x50()
[ 0.449839] CPU: 0 PID: 1 Comm: swapper Not tainted 3.17.0-00001-gdd46990-dirty #2
[ 0.450813] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 0.451512]
00000000 00000000 78025e38 7967c6c6 78025e68 7905e09b 7988b480 00000000
[ 0.452579]
00000001 79887d62 0000002f 79170bb3 79170bb3 78397008 79ac9d74 00000001
[ 0.453614]
78025e78 7905e15d 00000009 00000000 78025e84 79170bb3 78397000 78025e8c
[ 0.454632] Call Trace:
[ 0.454921] [<
7967c6c6>] dump_stack+0x16/0x18
[ 0.455453] [<
7905e09b>] warn_slowpath_common+0x6b/0x90
[ 0.456067] [<
79170bb3>] ? kobject_get+0x33/0x50
[ 0.456612] [<
79170bb3>] ? kobject_get+0x33/0x50
[ 0.457155] [<
7905e15d>] warn_slowpath_null+0x1d/0x20
[ 0.457748] [<
79170bb3>] kobject_get+0x33/0x50
[ 0.458274] [<
7925824f>] get_device+0xf/0x20
[ 0.458779] [<
7925b5cd>] driver_detach+0x3d/0xa0
[ 0.459331] [<
7925a3ff>] bus_remove_driver+0x8f/0xb0
[ 0.459927] [<
7925bf80>] ? class_unregister+0x40/0x80
[ 0.460660] [<
7925bad7>] driver_unregister+0x47/0x50
[ 0.461248] [<
7925c033>] ? class_destroy+0x13/0x20
[ 0.461824] [<
7925d07b>] platform_driver_unregister+0xb/0x10
[ 0.462507] [<
79b51ba0>] init_mac80211_hwsim+0x3e8/0x3f9
[ 0.463161] [<
79b30c58>] do_one_initcall+0x106/0x1a9
[ 0.463758] [<
79b517b8>] ? if_spi_init_module+0xac/0xac
[ 0.464393] [<
79b517b8>] ? if_spi_init_module+0xac/0xac
[ 0.465001] [<
79071935>] ? parse_args+0x2f5/0x480
[ 0.465569] [<
7906b41e>] ? __usermodehelper_set_disable_depth+0x3e/0x50
[ 0.466345] [<
79b30dd9>] kernel_init_freeable+0xde/0x17d
[ 0.466972] [<
79b304d6>] ? do_early_param+0x7a/0x7a
[ 0.467546] [<
79677b1b>] kernel_init+0xb/0xe0
[ 0.468072] [<
79075f42>] ? schedule_tail+0x12/0x40
[ 0.468658] [<
79686580>] ret_from_kernel_thread+0x20/0x30
[ 0.469303] [<
79677b10>] ? rest_init+0xc0/0xc0
[ 0.469829] ---[ end trace
ad8ac403ff8aef5c ]---
[ 0.470509] ------------[ cut here ]------------
[ 0.471047] WARNING: CPU: 0 PID: 1 at ../kernel/locking/lockdep.c:3161 __lock_acquire.isra.22+0x7aa/0xb00()
[ 0.472163] DEBUG_LOCKS_WARN_ON(id >= MAX_LOCKDEP_KEYS)
[ 0.472774] CPU: 0 PID: 1 Comm: swapper Tainted: G W 3.17.0-00001-gdd46990-dirty #2
[ 0.473815] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 0.474492]
78025de0 78025de0 78025da0 7967c6c6 78025dd0 7905e09b 79888931 78025dfc
[ 0.475515]
00000001 79888a93 00000c59 7907f33a 7907f33a 78028000 fffe9d09 00000000
[ 0.476519]
78025de8 7905e10e 00000009 78025de0 79888931 78025dfc 78025e24 7907f33a
[ 0.477523] Call Trace:
[ 0.477821] [<
7967c6c6>] dump_stack+0x16/0x18
[ 0.478352] [<
7905e09b>] warn_slowpath_common+0x6b/0x90
[ 0.478976] [<
7907f33a>] ? __lock_acquire.isra.22+0x7aa/0xb00
[ 0.479658] [<
7907f33a>] ? __lock_acquire.isra.22+0x7aa/0xb00
[ 0.480417] [<
7905e10e>] warn_slowpath_fmt+0x2e/0x30
[ 0.480479] [<
7907f33a>] __lock_acquire.isra.22+0x7aa/0xb00
[ 0.480479] [<
79078aa5>] ? sched_clock_cpu+0xb5/0xf0
[ 0.480479] [<
7907fd06>] lock_acquire+0x56/0x70
[ 0.480479] [<
7925b5e8>] ? driver_detach+0x58/0xa0
[ 0.480479] [<
79682d11>] mutex_lock_nested+0x61/0x2a0
[ 0.480479] [<
7925b5e8>] ? driver_detach+0x58/0xa0
[ 0.480479] [<
7925b5e8>] ? driver_detach+0x58/0xa0
[ 0.480479] [<
7925b5e8>] driver_detach+0x58/0xa0
[ 0.480479] [<
7925a3ff>] bus_remove_driver+0x8f/0xb0
[ 0.480479] [<
7925bf80>] ? class_unregister+0x40/0x80
[ 0.480479] [<
7925bad7>] driver_unregister+0x47/0x50
[ 0.480479] [<
7925c033>] ? class_destroy+0x13/0x20
[ 0.480479] [<
7925d07b>] platform_driver_unregister+0xb/0x10
[ 0.480479] [<
79b51ba0>] init_mac80211_hwsim+0x3e8/0x3f9
[ 0.480479] [<
79b30c58>] do_one_initcall+0x106/0x1a9
[ 0.480479] [<
79b517b8>] ? if_spi_init_module+0xac/0xac
[ 0.480479] [<
79b517b8>] ? if_spi_init_module+0xac/0xac
[ 0.480479] [<
79071935>] ? parse_args+0x2f5/0x480
[ 0.480479] [<
7906b41e>] ? __usermodehelper_set_disable_depth+0x3e/0x50
[ 0.480479] [<
79b30dd9>] kernel_init_freeable+0xde/0x17d
[ 0.480479] [<
79b304d6>] ? do_early_param+0x7a/0x7a
[ 0.480479] [<
79677b1b>] kernel_init+0xb/0xe0
[ 0.480479] [<
79075f42>] ? schedule_tail+0x12/0x40
[ 0.480479] [<
79686580>] ret_from_kernel_thread+0x20/0x30
[ 0.480479] [<
79677b10>] ? rest_init+0xc0/0xc0
[ 0.480479] ---[ end trace
ad8ac403ff8aef5d ]---
[ 0.495478] BUG: unable to handle kernel paging request at
00200200
[ 0.496257] IP: [<
79682de5>] mutex_lock_nested+0x135/0x2a0
[ 0.496923] *pde =
00000000
[ 0.497290] Oops: 0002 [#1]
[ 0.497653] CPU: 0 PID: 1 Comm: swapper Tainted: G W 3.17.0-00001-gdd46990-dirty #2
[ 0.498659] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 0.499321] task:
78028000 ti:
78024000 task.ti:
78024000
[ 0.499955] EIP: 0060:[<
79682de5>] EFLAGS:
00010097 CPU: 0
[ 0.500620] EIP is at mutex_lock_nested+0x135/0x2a0
[ 0.501145] EAX:
00200200 EBX:
78397434 ECX:
78397460 EDX:
78025e70
[ 0.501816] ESI:
00000246 EDI:
78028000 EBP:
78025e8c ESP:
78025e54
[ 0.502497] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068
[ 0.503076] CR0:
8005003b CR2:
00200200 CR3:
01b9d000 CR4:
00000690
[ 0.503773] Stack:
[ 0.503998]
00000000 00000001 00000000 7925b5e8 78397460 7925b5e8 78397474 78397460
[ 0.504944]
00200200 11111111 78025e70 78397000 79ac9d74 00000001 78025ea0 7925b5e8
[ 0.505451]
79ac9d74 fffffffe 00000001 78025ebc 7925a3ff 7a251398 78025ec8 7925bf80
[ 0.505451] Call Trace:
[ 0.505451] [<
7925b5e8>] ? driver_detach+0x58/0xa0
[ 0.505451] [<
7925b5e8>] ? driver_detach+0x58/0xa0
[ 0.505451] [<
7925b5e8>] driver_detach+0x58/0xa0
[ 0.505451] [<
7925a3ff>] bus_remove_driver+0x8f/0xb0
[ 0.505451] [<
7925bf80>] ? class_unregister+0x40/0x80
[ 0.505451] [<
7925bad7>] driver_unregister+0x47/0x50
[ 0.505451] [<
7925c033>] ? class_destroy+0x13/0x20
[ 0.505451] [<
7925d07b>] platform_driver_unregister+0xb/0x10
[ 0.505451] [<
79b51ba0>] init_mac80211_hwsim+0x3e8/0x3f9
[ 0.505451] [<
79b30c58>] do_one_initcall+0x106/0x1a9
[ 0.505451] [<
79b517b8>] ? if_spi_init_module+0xac/0xac
[ 0.505451] [<
79b517b8>] ? if_spi_init_module+0xac/0xac
[ 0.505451] [<
79071935>] ? parse_args+0x2f5/0x480
[ 0.505451] [<
7906b41e>] ? __usermodehelper_set_disable_depth+0x3e/0x50
[ 0.505451] [<
79b30dd9>] kernel_init_freeable+0xde/0x17d
[ 0.505451] [<
79b304d6>] ? do_early_param+0x7a/0x7a
[ 0.505451] [<
79677b1b>] kernel_init+0xb/0xe0
[ 0.505451] [<
79075f42>] ? schedule_tail+0x12/0x40
[ 0.505451] [<
79686580>] ret_from_kernel_thread+0x20/0x30
[ 0.505451] [<
79677b10>] ? rest_init+0xc0/0xc0
[ 0.505451] Code: 89 d8 e8 cf 9b 9f ff 8b 4f 04 8d 55 e4 89 d8 e8 72 9d 9f ff 8d 43 2c 89 c1 89 45 d8 8b 43 30 8d 55 e4 89 53 30 89 4d e4 89 45 e8 <89> 10 8b 55 dc 8b 45 e0 89 7d ec e8 db af 9f ff eb 11 90 31 c0
[ 0.505451] EIP: [<
79682de5>] mutex_lock_nested+0x135/0x2a0 SS:ESP 0068:
78025e54
[ 0.505451] CR2:
0000000000200200
[ 0.505451] ---[ end trace
ad8ac403ff8aef5e ]---
[ 0.505451] Kernel panic - not syncing: Fatal exception
Fixes:
9ea927748ced ("mac80211_hwsim: Register and bind to driver")
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Junjie Mao <eternal.n08@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Herbert Xu [Mon, 3 Nov 2014 06:01:25 +0000 (14:01 +0800)]
macvtap: Fix csum_start when VLAN tags are present
commit
3ce9b20f1971690b8b3b620e735ec99431573b39 upstream.
When VLAN is in use in macvtap_put_user, we end up setting
csum_start to the wrong place. The result is that the whoever
ends up doing the checksum setting will corrupt the packet instead
of writing the checksum to the expected location, usually this
means writing the checksum with an offset of -4.
This patch fixes this by adjusting csum_start when VLAN tags are
detected.
Fixes:
f09e2249c4f5 ("macvtap: restore vlan header on user read")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ilya Dryomov [Wed, 22 Oct 2014 20:25:22 +0000 (00:25 +0400)]
libceph: do not crash on large auth tickets
commit
aaef31703a0cf6a733e651885bfb49edc3ac6774 upstream.
Large (greater than 32k, the value of PAGE_ALLOC_COSTLY_ORDER) auth
tickets will have their buffers vmalloc'ed, which leads to the
following crash in crypto:
[ 28.685082] BUG: unable to handle kernel paging request at
ffffeb04000032c0
[ 28.686032] IP: [<
ffffffff81392b42>] scatterwalk_pagedone+0x22/0x80
[ 28.686032] PGD 0
[ 28.688088] Oops: 0000 [#1] PREEMPT SMP
[ 28.688088] Modules linked in:
[ 28.688088] CPU: 0 PID: 878 Comm: kworker/0:2 Not tainted 3.17.0-vm+ #305
[ 28.688088] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007
[ 28.688088] Workqueue: ceph-msgr con_work
[ 28.688088] task:
ffff88011a7f9030 ti:
ffff8800d903c000 task.ti:
ffff8800d903c000
[ 28.688088] RIP: 0010:[<
ffffffff81392b42>] [<
ffffffff81392b42>] scatterwalk_pagedone+0x22/0x80
[ 28.688088] RSP: 0018:
ffff8800d903f688 EFLAGS:
00010286
[ 28.688088] RAX:
ffffeb04000032c0 RBX:
ffff8800d903f718 RCX:
ffffeb04000032c0
[ 28.688088] RDX:
0000000000000000 RSI:
0000000000000001 RDI:
ffff8800d903f750
[ 28.688088] RBP:
ffff8800d903f688 R08:
00000000000007de R09:
ffff8800d903f880
[ 28.688088] R10:
18df467c72d6257b R11:
0000000000000000 R12:
0000000000000010
[ 28.688088] R13:
ffff8800d903f750 R14:
ffff8800d903f8a0 R15:
0000000000000000
[ 28.688088] FS:
00007f50a41c7700(0000) GS:
ffff88011fc00000(0000) knlGS:
0000000000000000
[ 28.688088] CS: 0010 DS: 0000 ES: 0000 CR0:
000000008005003b
[ 28.688088] CR2:
ffffeb04000032c0 CR3:
00000000da3f3000 CR4:
00000000000006b0
[ 28.688088] Stack:
[ 28.688088]
ffff8800d903f698 ffffffff81392ca8 ffff8800d903f6e8 ffffffff81395d32
[ 28.688088]
ffff8800dac96000 ffff880000000000 ffff8800d903f980 ffff880119b7e020
[ 28.688088]
ffff880119b7e010 0000000000000000 0000000000000010 0000000000000010
[ 28.688088] Call Trace:
[ 28.688088] [<
ffffffff81392ca8>] scatterwalk_done+0x38/0x40
[ 28.688088] [<
ffffffff81392ca8>] scatterwalk_done+0x38/0x40
[ 28.688088] [<
ffffffff81395d32>] blkcipher_walk_done+0x182/0x220
[ 28.688088] [<
ffffffff813990bf>] crypto_cbc_encrypt+0x15f/0x180
[ 28.688088] [<
ffffffff81399780>] ? crypto_aes_set_key+0x30/0x30
[ 28.688088] [<
ffffffff8156c40c>] ceph_aes_encrypt2+0x29c/0x2e0
[ 28.688088] [<
ffffffff8156d2a3>] ceph_encrypt2+0x93/0xb0
[ 28.688088] [<
ffffffff8156d7da>] ceph_x_encrypt+0x4a/0x60
[ 28.688088] [<
ffffffff8155b39d>] ? ceph_buffer_new+0x5d/0xf0
[ 28.688088] [<
ffffffff8156e837>] ceph_x_build_authorizer.isra.6+0x297/0x360
[ 28.688088] [<
ffffffff8112089b>] ? kmem_cache_alloc_trace+0x11b/0x1c0
[ 28.688088] [<
ffffffff8156b496>] ? ceph_auth_create_authorizer+0x36/0x80
[ 28.688088] [<
ffffffff8156ed83>] ceph_x_create_authorizer+0x63/0xd0
[ 28.688088] [<
ffffffff8156b4b4>] ceph_auth_create_authorizer+0x54/0x80
[ 28.688088] [<
ffffffff8155f7c0>] get_authorizer+0x80/0xd0
[ 28.688088] [<
ffffffff81555a8b>] prepare_write_connect+0x18b/0x2b0
[ 28.688088] [<
ffffffff81559289>] try_read+0x1e59/0x1f10
This is because we set up crypto scatterlists as if all buffers were
kmalloc'ed. Fix it.
Signed-off-by: Ilya Dryomov <idryomov@redhat.com>
Reviewed-by: Sage Weil <sage@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Max Filippov [Mon, 6 Oct 2014 17:01:17 +0000 (21:01 +0400)]
xtensa: re-wire umount syscall to sys_oldumount
commit
2651cc6974d47fc43bef1cd8cd26966e4f5ba306 upstream.
Userspace actually passes single parameter (path name) to the umount
syscall, so new umount just fails. Fix it by requesting old umount
syscall implementation and re-wiring umount to it.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Takashi Iwai [Tue, 11 Nov 2014 14:45:57 +0000 (15:45 +0100)]
ALSA: usb-audio: Fix memory leak in FTU quirk
commit
1a290581ded60e87276741f8ca97b161d2b226fc upstream.
M-audio FastTrack Ultra quirk doesn't release the kzalloc'ed memory.
This patch adds the private_free callback to release it properly.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tejun Heo [Mon, 27 Oct 2014 14:22:56 +0000 (10:22 -0400)]
ahci: disable MSI instead of NCQ on Samsung pci-e SSDs on macbooks
commit
66a7cbc303f4d28f201529b06061944d51ab530c upstream.
Samsung pci-e SSDs on macbooks failed miserably on NCQ commands, so
67809f85d31e ("ahci: disable NCQ on Samsung pci-e SSDs on macbooks")
disabled NCQ on them. It turns out that NCQ is fine as long as MSI is
not used, so let's turn off MSI and leave NCQ on.
Signed-off-by: Tejun Heo <tj@kernel.org>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=60731
Tested-by: <dorin@i51.org>
Tested-by: Imre Kaloz <kaloz@openwrt.org>
Fixes:
67809f85d31e ("ahci: disable NCQ on Samsung pci-e SSDs on macbooks")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
James Ralston [Mon, 13 Oct 2014 22:16:38 +0000 (15:16 -0700)]
ahci: Add Device IDs for Intel Sunrise Point PCH
commit
690000b930456a98663567d35dd5c54b688d1e3f upstream.
This patch adds the AHCI-mode SATA Device IDs for the Intel Sunrise Point PCH.
Signed-off-by: James Ralston <james.d.ralston@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Miklos Szeredi [Tue, 4 Nov 2014 10:27:12 +0000 (11:27 +0100)]
audit: keep inode pinned
commit
799b601451b21ebe7af0e6e8f6e2ccd4683c5064 upstream.
Audit rules disappear when an inode they watch is evicted from the cache.
This is likely not what we want.
The guilty commit is "fsnotify: allow marks to not pin inodes in core",
which didn't take into account that audit_tree adds watches with a zero
mask.
Adding any mask should fix this.
Fixes:
90b1e7a57880 ("fsnotify: allow marks to not pin inodes in core")
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Richard Guy Briggs [Thu, 30 Oct 2014 15:22:53 +0000 (11:22 -0400)]
audit: AUDIT_FEATURE_CHANGE message format missing delimiting space
commit
897f1acbb6702ddaa953e8d8436eee3b12016c7e upstream.
Add a space between subj= and feature= fields to make them parsable.
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Richard Guy Briggs [Mon, 25 Aug 2014 00:37:52 +0000 (20:37 -0400)]
audit: correct AUDIT_GET_FEATURE return message type
commit
9ef91514774a140e468f99d73d7593521e6d25dc upstream.
When an AUDIT_GET_FEATURE message is sent from userspace to the kernel, it
should reply with a message tagged as an AUDIT_GET_FEATURE type with a struct
audit_feature. The current reply is a message tagged as an AUDIT_GET
type with a struct audit_feature.
This appears to have been a cut-and-paste-eo in commit b0fed40.
Reported-by: Steve Grubb <sgrubb@redhat.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Andy Lutomirski [Fri, 5 Sep 2014 22:13:52 +0000 (15:13 -0700)]
x86, x32, audit: Fix x32's AUDIT_ARCH wrt audit
commit
81f49a8fd7088cfcb588d182eeede862c0e3303e upstream.
is_compat_task() is the wrong check for audit arch; the check should
be is_ia32_task(): x32 syscalls should be AUDIT_ARCH_X86_64, not
AUDIT_ARCH_I386.
CONFIG_AUDITSYSCALL is currently incompatible with x32, so this has
no visible effect.
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Link: http://lkml.kernel.org/r/a0138ed8c709882aec06e4acc30bfa9b623b8717.1409954077.git.luto@amacapital.net
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Herbert Xu [Sun, 2 Nov 2014 20:30:13 +0000 (04:30 +0800)]
tun: Fix csum_start with VLAN acceleration
commit
a8f9bfdf982e2b1fb9f094e4de9ab08c57f3d2fd upstream.
When VLAN acceleration is in use on the xmit path, we end up
setting csum_start to the wrong place. The result is that the
whoever ends up doing the checksum setting will corrupt the packet
instead of writing the checksum to the expected location, usually
this means writing the checksum with an offset of -4.
This patch fixes this by adjusting csum_start when VLAN acceleration
is detected.
Fixes:
6680ec68eff4 ("tuntap: hardware vlan tx support")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Greg Kurz [Fri, 31 Oct 2014 06:50:11 +0000 (07:50 +0100)]
hwrng: pseries - port to new read API and fix stack corruption
commit
24c65bc7037e7d0f362c0df70d17dd72ee64b8b9 upstream.
The add_early_randomness() function in drivers/char/hw_random/core.c passes
a 16-byte buffer to pseries_rng_data_read(). Unfortunately, plpar_hcall()
returns four 64-bit values and trashes 16 bytes on the stack.
This bug has been lying around for a long time. It got unveiled by:
commit
d3cc7996473a7bdd33256029988ea690754e4e2a
Author: Amit Shah <amit.shah@redhat.com>
Date: Thu Jul 10 15:42:34 2014 +0530
hwrng: fetch randomness only after device init
It may trig a oops while loading or unloading the pseries-rng module for both
PowerVM and PowerKVM guests.
This patch does two things:
- pass an intermediate well sized buffer to plpar_hcall(). This is acceptalbe
since we're not on a hot path.
- move to the new read API so that we know the return buffer size for sure.
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cristian Stoica [Thu, 14 Aug 2014 10:51:56 +0000 (13:51 +0300)]
crypto: caam - remove duplicated sg copy functions
commit
307fd543f3d23f8f56850eca1b27b1be2fe71017 upstream.
Replace equivalent (and partially incorrect) scatter-gather functions
with ones from crypto-API.
The replacement is motivated by page-faults in sg_copy_part triggered
by successive calls to crypto_hash_update. The following fault appears
after calling crypto_ahash_update twice, first with 13 and then
with 285 bytes:
Unable to handle kernel paging request for data at address 0x00000008
Faulting instruction address: 0xf9bf9a8c
Oops: Kernel access of bad area, sig: 11 [#1]
SMP NR_CPUS=8 CoreNet Generic
Modules linked in: tcrypt(+) caamhash caam_jr caam tls
CPU: 6 PID: 1497 Comm: cryptomgr_test Not tainted
3.12.19-rt30-QorIQ-SDK-V1.6+g9fda9f2 #75
task:
e9308530 ti:
e700e000 task.ti:
e700e000
NIP:
f9bf9a8c LR:
f9bfcf28 CTR:
c0019ea0
REGS:
e700fb80 TRAP: 0300 Not tainted
(3.12.19-rt30-QorIQ-SDK-V1.6+g9fda9f2)
MSR:
00029002 <CE,EE,ME> CR:
44f92024 XER:
20000000
DEAR:
00000008, ESR:
00000000
GPR00:
f9bfcf28 e700fc30 e9308530 e70b1e55 00000000 ffffffdd e70b1e54 0bebf888
GPR08:
902c7ef5 c0e771e2 00000002 00000888 c0019ea0 00000000 00000000 c07a4154
GPR16:
c08d0000 e91a8f9c 00000001 e98fb400 00000100 e9c83028 e70b1e08 e70b1d48
GPR24:
e992ce10 e70b1dc8 f9bfe4f4 e70b1e55 ffffffdd e70b1ce0 00000000 00000000
NIP [
f9bf9a8c] sg_copy+0x1c/0x100 [caamhash]
LR [
f9bfcf28] ahash_update_no_ctx+0x628/0x660 [caamhash]
Call Trace:
[
e700fc30] [
f9bf9c50] sg_copy_part+0xe0/0x160 [caamhash] (unreliable)
[
e700fc50] [
f9bfcf28] ahash_update_no_ctx+0x628/0x660 [caamhash]
[
e700fcb0] [
f954e19c] crypto_tls_genicv+0x13c/0x300 [tls]
[
e700fd10] [
f954e65c] crypto_tls_encrypt+0x5c/0x260 [tls]
[
e700fd40] [
c02250ec] __test_aead.constprop.9+0x2bc/0xb70
[
e700fe40] [
c02259f0] alg_test_aead+0x50/0xc0
[
e700fe60] [
c02241e4] alg_test+0x114/0x2e0
[
e700fee0] [
c022276c] cryptomgr_test+0x4c/0x60
[
e700fef0] [
c004f658] kthread+0x98/0xa0
[
e700ff40] [
c000fd04] ret_from_kernel_thread+0x5c/0x64
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Cristian Stoica <cristian.stoica@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cristian Stoica [Thu, 30 Oct 2014 12:40:22 +0000 (14:40 +0200)]
crypto: caam - fix missing dma unmap on error path
commit
738459e3f88538f2ece263424dafe5d91799e46b upstream.
If dma mapping for dma_addr_out fails, the descriptor memory is freed
but the previous dma mapping for dma_addr_in remains.
This patch resolves the missing dma unmap and groups resource
allocations at function start.
Signed-off-by: Cristian Stoica <cristian.stoica@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Weijie Yang [Thu, 13 Nov 2014 23:19:05 +0000 (15:19 -0800)]
zram: avoid kunmap_atomic() of a NULL pointer
commit
c406515239376fc93a30d5d03192182160cbd3fb upstream.
zram could kunmap_atomic() a NULL pointer in a rare situation: a zram
page becomes a full-zeroed page after a partial write io. The current
code doesn't handle this case and performs kunmap_atomic() on a NULL
pointer, which panics the kernel.
This patch fixes this issue.
Signed-off-by: Weijie Yang <weijie.yang@samsung.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Weijie Yang <weijie.yang.kh@gmail.com>
Acked-by: Jerome Marchand <jmarchan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Andreas Larsson [Wed, 5 Nov 2014 14:52:08 +0000 (15:52 +0100)]
sparc32: Implement xchg and atomic_xchg using ATOMIC_HASH locks
[ Upstream commit
1a17fdc4f4ed06b63fac1937470378a5441a663a ]
Atomicity between xchg and cmpxchg cannot be guaranteed when xchg is
implemented with a swap and cmpxchg is implemented with locks.
Without this, e.g. mcs_spin_lock and mcs_spin_unlock are broken.
Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David S. Miller [Fri, 7 Nov 2014 17:50:48 +0000 (09:50 -0800)]
sparc64: Do irq_{enter,exit}() around generic_smp_call_function*().
[ Upstream commit
ab5c780913bca0a5763ca05dd5c2cb5cb08ccb26 ]
Otherwise rcu_irq_{enter,exit}() do not happen and we get dumps like:
====================
[ 188.275021] ===============================
[ 188.309351] [ INFO: suspicious RCU usage. ]
[ 188.343737] 3.18.0-rc3-00068-g20f3963-dirty #54 Not tainted
[ 188.394786] -------------------------------
[ 188.429170] include/linux/rcupdate.h:883 rcu_read_lock() used
illegally while idle!
[ 188.505235]
other info that might help us debug this:
[ 188.554230]
RCU used illegally from idle CPU!
rcu_scheduler_active = 1, debug_locks = 0
[ 188.637587] RCU used illegally from extended quiescent state!
[ 188.690684] 3 locks held by swapper/7/0:
[ 188.721932] #0: (&x->wait#11){......}, at: [<
0000000000495de8>] complete+0x8/0x60
[ 188.797994] #1: (&p->pi_lock){-.-.-.}, at: [<
000000000048510c>] try_to_wake_up+0xc/0x400
[ 188.881343] #2: (rcu_read_lock){......}, at: [<
000000000048a910>] select_task_rq_fair+0x90/0xb40
[ 188.973043]stack backtrace:
[ 188.993879] CPU: 7 PID: 0 Comm: swapper/7 Not tainted 3.18.0-rc3-00068-g20f3963-dirty #54
[ 189.076187] Call Trace:
[ 189.089719] [
0000000000499360] lockdep_rcu_suspicious+0xe0/0x100
[ 189.147035] [
000000000048a99c] select_task_rq_fair+0x11c/0xb40
[ 189.202253] [
00000000004852d8] try_to_wake_up+0x1d8/0x400
[ 189.252258] [
000000000048554c] default_wake_function+0xc/0x20
[ 189.306435] [
0000000000495554] __wake_up_common+0x34/0x80
[ 189.356448] [
00000000004955b4] __wake_up_locked+0x14/0x40
[ 189.406456] [
0000000000495e08] complete+0x28/0x60
[ 189.448142] [
0000000000636e28] blk_end_sync_rq+0x8/0x20
[ 189.496057] [
0000000000639898] __blk_mq_end_request+0x18/0x60
[ 189.550249] [
00000000006ee014] scsi_end_request+0x94/0x180
[ 189.601286] [
00000000006ee334] scsi_io_completion+0x1d4/0x600
[ 189.655463] [
00000000006e51c4] scsi_finish_command+0xc4/0xe0
[ 189.708598] [
00000000006ed958] scsi_softirq_done+0x118/0x140
[ 189.761735] [
00000000006398ec] __blk_mq_complete_request_remote+0xc/0x20
[ 189.827383] [
00000000004c75d0] generic_smp_call_function_single_interrupt+0x150/0x1c0
[ 189.906581] [
000000000043e514] smp_call_function_single_client+0x14/0x40
====================
Based almost entirely upon a patch by Paul E. McKenney.
Reported-by: Meelis Roos <mroos@linux.ee>
Tested-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David S. Miller [Sat, 1 Nov 2014 04:33:58 +0000 (00:33 -0400)]
sparc64: Fix crashes in schizo_pcierr_intr_other().
[ Upstream commit
7da89a2a3776442a57e918ca0b8678d1b16a7072 ]
Meelis Roos reports crashes during bootup on a V480 that look like
this:
====================
[ 61.300577] PCI: Scanning PBM /pci@9,600000
[ 61.304867] schizo
f009b070: PCI host bridge to bus 0003:00
[ 61.310385] pci_bus 0003:00: root bus resource [io 0x7ffe9000000-0x7ffe9ffffff] (bus address [0x0000-0xffffff])
[ 61.320515] pci_bus 0003:00: root bus resource [mem 0x7fb00000000-0x7fbffffffff] (bus address [0x00000000-0xffffffff])
[ 61.331173] pci_bus 0003:00: root bus resource [bus 00]
[ 61.385344] Unable to handle kernel NULL pointer dereference
[ 61.390970] tsk->{mm,active_mm}->context =
0000000000000000
[ 61.396515] tsk->{mm,active_mm}->pgd =
fff000b000002000
[ 61.401716] \|/ ____ \|/
[ 61.401716] "@'/ .. \`@"
[ 61.401716] /_| \__/ |_\
[ 61.401716] \__U_/
[ 61.416362] swapper/0(0): Oops [#1]
[ 61.419837] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.18.0-rc1-00422-g2cc9188-dirty #24
[ 61.427975] task:
fff000b0fd8e9c40 ti:
fff000b0fd928000 task.ti:
fff000b0fd928000
[ 61.435426] TSTATE:
0000004480e01602 TPC:
00000000004455e4 TNPC:
00000000004455e8 Y:
00000000 Not tainted
[ 61.445230] TPC: <schizo_pcierr_intr+0x104/0x560>
[ 61.449897] g0:
0000000000000000 g1:
0000000000000000 g2:
0000000000a10f78 g3:
000000000000000a
[ 61.458563] g4:
fff000b0fd8e9c40 g5:
fff000b0fdd82000 g6:
fff000b0fd928000 g7:
000000000000000a
[ 61.467229] o0:
000000000000003d o1:
0000000000000000 o2:
0000000000000006 o3:
fff000b0ffa5fc7e
[ 61.475894] o4:
0000000000060000 o5:
c000000000000000 sp:
fff000b0ffa5f3c1 ret_pc:
00000000004455cc
[ 61.484909] RPC: <schizo_pcierr_intr+0xec/0x560>
[ 61.489500] l0:
fff000b0fd8e9c40 l1:
0000000000a20800 l2:
0000000000000000 l3:
000000000119a430
[ 61.498164] l4:
0000000001742400 l5:
00000000011cfbe0 l6:
00000000011319c0 l7:
fff000b0fd8ea348
[ 61.506830] i0:
0000000000000000 i1:
fff000b0fdb34000 i2:
0000000320000000 i3:
0000000000000000
[ 61.515497] i4:
00060002010b003f i5:
0000040004e02000 i6:
fff000b0ffa5f481 i7:
00000000004a9920
[ 61.524175] I7: <handle_irq_event_percpu+0x40/0x140>
[ 61.529099] Call Trace:
[ 61.531531] [
00000000004a9920] handle_irq_event_percpu+0x40/0x140
[ 61.537681] [
00000000004a9a58] handle_irq_event+0x38/0x80
[ 61.543145] [
00000000004ac77c] handle_fasteoi_irq+0xbc/0x200
[ 61.548860] [
00000000004a9084] generic_handle_irq+0x24/0x40
[ 61.554500] [
000000000042be0c] handler_irq+0xac/0x100
====================
The problem is that pbm->pci_bus->self is NULL.
This code is trying to go through the standard PCI config space
interfaces to read the PCI controller's PCI_STATUS register.
This doesn't work, because we more often than not do not enumerate
the PCI controller as a bonafide PCI device during the OF device
node scan. Therefore bus->self remains NULL.
Existing common code for PSYCHO and PSYCHO-like PCI controllers
handles this properly, by doing the config space access directly.
Do the same here, pbm->pci_ops->{read,write}().
Reported-by: Meelis Roos <mroos@linux.ee>
Tested-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dwight Engen [Thu, 30 Oct 2014 19:55:35 +0000 (15:55 -0400)]
sunvdc: don't call VD_OP_GET_VTOC
[ Upstream commit
85b0c6e62c48bb9179fd5b3e954f362fb346cbd5 ]
The VD_OP_GET_VTOC operation will succeed only if the vdisk backend has a
VTOC label, otherwise it will fail. In particular, it will return error
48 (ENOTSUP) if the disk has an EFI label. VTOC disk labels are already
handled by directly reading the disk in block/partitions/sun.c (enabled by
CONFIG_SUN_PARTITION which defaults to y on SPARC). Since port->label is
unused in the driver, remove the call and the field.
Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dwight Engen [Fri, 19 Sep 2014 13:43:02 +0000 (09:43 -0400)]
vio: fix reuse of vio_dring slot
[ Upstream commit
d0aedcd4f14a22e23b313f42b7e6e6ebfc0fbc31 ]
vio_dring_avail() will allow use of every dring entry, but when the last
entry is allocated then dr->prod == dr->cons which is indistinguishable from
the ring empty condition. This causes the next allocation to reuse an entry.
When this happens in sunvdc, the server side vds driver begins nack'ing the
messages and ends up resetting the ldc channel. This problem does not effect
sunvnet since it checks for < 2.
The fix here is to just never allocate the very last dring slot so that full
and empty are not the same condition. The request start path was changed to
check for the ring being full a bit earlier, and to stop the blk_queue if
there is no space left. The blk_queue will be restarted once the ring is
only half full again. The number of ring entries was increased to 512 which
matches the sunvnet and Solaris vdc drivers, and greatly reduces the
frequency of hitting the ring full condition and the associated blk_queue
stop/starting. The checks in sunvent were adjusted to account for
vio_dring_avail() returning 1 less.
Orabug:
19441666
OraBZ: 14983
Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dwight Engen [Fri, 19 Sep 2014 13:42:53 +0000 (09:42 -0400)]
sunvdc: limit each sg segment to a page
[ Upstream commit
5eed69ffd248c9f68f56c710caf07db134aef28b ]
ldc_map_sg() could fail its check that the number of pages referred to
by the sg scatterlist was <= the number of cookies.
This fixes the issue by doing a similar thing to the xen-blkfront driver,
ensuring that the scatterlist will only ever contain a segment count <=
port->ring_cookies, and each segment will be page aligned, and <= page
size. This ensures that the scatterlist is always mappable.
Orabug:
19347817
OraBZ: 15945
Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Allen Pais [Fri, 19 Sep 2014 13:42:26 +0000 (09:42 -0400)]
sunvdc: compute vdisk geometry from capacity
[ Upstream commit
de5b73f08468b4fc5e2f6d1505f650262622f78b ]
The LDom diskserver doesn't return reliable geometry data. In addition,
the types for all fields in the vio_disk_geom are u16, which were being
truncated in the cast into the u8's of the Linux struct hd_geometry.
Modify vdc_getgeo() to compute the geometry from the disk's capacity in a
manner consistent with xen-blkfront::blkif_getgeo().
Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Allen Pais [Fri, 19 Sep 2014 13:42:14 +0000 (09:42 -0400)]
sunvdc: add cdrom and v1.1 protocol support
[ Upstream commit
9bce21828d54a95143f1b74619705c2dd8e88b92 ]
Interpret the media type from v1.1 protocol to support CDROM/DVD.
For v1.0 protocol, a disk's size continues to be calculated from the
geometry returned by the vdisk server. The geometry returned by the server
can be less than the actual number of sectors available in the backing
image/device due to the rounding in the division used to compute the
geometry in the vdisk server.
In v1.1 protocol a disk's actual size in sectors is returned during the
handshake. Use this size when v1.1 protocol is negotiated. Since this size
will always be larger than the former geometry computed size, disks created
under v1.0 will be forwards compatible to v1.1, but not vice versa.
Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Enric Balletbo i Serra [Thu, 13 Nov 2014 08:14:34 +0000 (09:14 +0100)]
smsc911x: power-up phydev before doing a software reset.
[ Upstream commit
ccf899a27c08038db91765ff12bb0380dcd85887 ]
With commit
be9dad1f9f26604fb ("net: phy: suspend phydev when going
to HALTED"), the PHY device will be put in a low-power mode using
BMCR_PDOWN if the the interface is set down. The smsc911x driver does
a software_reset opening the device driver (ndo_open). In such case,
the PHY must be powered-up before access to any register and before
calling the software_reset function. Otherwise, as the PHY is powered
down the software reset fails and the interface can not be enabled
again.
This patch fixes this scenario that is easy to reproduce setting down
the network interface and setting up again.
$ ifconfig eth0 down
$ ifconfig eth0 up
ifconfig: SIOCSIFFLAGS: Input/output error
Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniel Borkmann [Mon, 10 Nov 2014 17:00:09 +0000 (18:00 +0100)]
net: sctp: fix memory leak in auth key management
[ Upstream commit
4184b2a79a7612a9272ce20d639934584a1f3786 ]
A very minimal and simple user space application allocating an SCTP
socket, setting SCTP_AUTH_KEY setsockopt(2) on it and then closing
the socket again will leak the memory containing the authentication
key from user space:
unreferenced object 0xffff8800837047c0 (size 16):
comm "a.out", pid 2789, jiffies
4296954322 (age 192.258s)
hex dump (first 16 bytes):
01 00 00 00 04 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<
ffffffff816d7e8e>] kmemleak_alloc+0x4e/0xb0
[<
ffffffff811c88d8>] __kmalloc+0xe8/0x270
[<
ffffffffa0870c23>] sctp_auth_create_key+0x23/0x50 [sctp]
[<
ffffffffa08718b1>] sctp_auth_set_key+0xa1/0x140 [sctp]
[<
ffffffffa086b383>] sctp_setsockopt+0xd03/0x1180 [sctp]
[<
ffffffff815bfd94>] sock_common_setsockopt+0x14/0x20
[<
ffffffff815beb61>] SyS_setsockopt+0x71/0xd0
[<
ffffffff816e58a9>] system_call_fastpath+0x12/0x17
[<
ffffffffffffffff>] 0xffffffffffffffff
This is bad because of two things, we can bring down a machine from
user space when auth_enable=1, but also we would leave security sensitive
keying material in memory without clearing it after use. The issue is
that sctp_auth_create_key() already sets the refcount to 1, but after
allocation sctp_auth_set_key() does an additional refcount on it, and
thus leaving it around when we free the socket.
Fixes:
65b07e5d0d0 ("[SCTP]: API updates to suport SCTP-AUTH extensions.")
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Vlad Yasevich <vyasevich@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniel Borkmann [Mon, 10 Nov 2014 16:54:26 +0000 (17:54 +0100)]
net: sctp: fix NULL pointer dereference in af->from_addr_param on malformed packet
[ Upstream commit
e40607cbe270a9e8360907cb1e62ddf0736e4864 ]
An SCTP server doing ASCONF will panic on malformed INIT ping-of-death
in the form of:
------------ INIT[PARAM: SET_PRIMARY_IP] ------------>
While the INIT chunk parameter verification dissects through many things
in order to detect malformed input, it misses to actually check parameters
inside of parameters. E.g. RFC5061, section 4.2.4 proposes a 'set primary
IP address' parameter in ASCONF, which has as a subparameter an address
parameter.
So an attacker may send a parameter type other than SCTP_PARAM_IPV4_ADDRESS
or SCTP_PARAM_IPV6_ADDRESS, param_type2af() will subsequently return 0
and thus sctp_get_af_specific() returns NULL, too, which we then happily
dereference unconditionally through af->from_addr_param().
The trace for the log:
BUG: unable to handle kernel NULL pointer dereference at
0000000000000078
IP: [<
ffffffffa01e9c62>] sctp_process_init+0x492/0x990 [sctp]
PGD 0
Oops: 0000 [#1] SMP
[...]
Pid: 0, comm: swapper Not tainted 2.6.32-504.el6.x86_64 #1 Bochs Bochs
RIP: 0010:[<
ffffffffa01e9c62>] [<
ffffffffa01e9c62>] sctp_process_init+0x492/0x990 [sctp]
[...]
Call Trace:
<IRQ>
[<
ffffffffa01f2add>] ? sctp_bind_addr_copy+0x5d/0xe0 [sctp]
[<
ffffffffa01e1fcb>] sctp_sf_do_5_1B_init+0x21b/0x340 [sctp]
[<
ffffffffa01e3751>] sctp_do_sm+0x71/0x1210 [sctp]
[<
ffffffffa01e5c09>] ? sctp_endpoint_lookup_assoc+0xc9/0xf0 [sctp]
[<
ffffffffa01e61f6>] sctp_endpoint_bh_rcv+0x116/0x230 [sctp]
[<
ffffffffa01ee986>] sctp_inq_push+0x56/0x80 [sctp]
[<
ffffffffa01fcc42>] sctp_rcv+0x982/0xa10 [sctp]
[<
ffffffffa01d5123>] ? ipt_local_in_hook+0x23/0x28 [iptable_filter]
[<
ffffffff8148bdc9>] ? nf_iterate+0x69/0xb0
[<
ffffffff81496d10>] ? ip_local_deliver_finish+0x0/0x2d0
[<
ffffffff8148bf86>] ? nf_hook_slow+0x76/0x120
[<
ffffffff81496d10>] ? ip_local_deliver_finish+0x0/0x2d0
[...]
A minimal way to address this is to check for NULL as we do on all
other such occasions where we know sctp_get_af_specific() could
possibly return with NULL.
Fixes:
d6de3097592b ("[SCTP]: Add the handling of "Set Primary IP Address" parameter to INIT")
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Vlad Yasevich <vyasevich@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Marcelo Leitner [Thu, 13 Nov 2014 16:43:08 +0000 (14:43 -0200)]
vxlan: Do not reuse sockets for a different address family
[ Upstream commit
19ca9fc1445b76b60d34148f7ff837b055f5dcf3 ]
Currently, we only match against local port number in order to reuse
socket. But if this new vxlan wants an IPv6 socket and a IPv4 one bound
to that port, vxlan will reuse an IPv4 socket as IPv6 and a panic will
follow. The following steps reproduce it:
# ip link add vxlan6 type vxlan id 42 group 229.10.10.10 \
srcport 5000 6000 dev eth0
# ip link add vxlan7 type vxlan id 43 group ff0e::110 \
srcport 5000 6000 dev eth0
# ip link set vxlan6 up
# ip link set vxlan7 up
<panic>
[ 4.187481] BUG: unable to handle kernel NULL pointer dereference at
0000000000000058
...
[ 4.188076] Call Trace:
[ 4.188085] [<
ffffffff81667c4a>] ? ipv6_sock_mc_join+0x3a/0x630
[ 4.188098] [<
ffffffffa05a6ad6>] vxlan_igmp_join+0x66/0xd0 [vxlan]
[ 4.188113] [<
ffffffff810a3430>] process_one_work+0x220/0x710
[ 4.188125] [<
ffffffff810a33c4>] ? process_one_work+0x1b4/0x710
[ 4.188138] [<
ffffffff810a3a3b>] worker_thread+0x11b/0x3a0
[ 4.188149] [<
ffffffff810a3920>] ? process_one_work+0x710/0x710
So address family must also match in order to reuse a socket.
Reported-by: Jean-Tsung Hsiao <jhsiao@redhat.com>
Signed-off-by: Marcelo Ricardo Leitner <mleitner@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Steffen Klassert [Mon, 3 Nov 2014 08:19:30 +0000 (09:19 +0100)]
gre6: Move the setting of dev->iflink into the ndo_init functions.
[ Upstream commit
f03eb128e3f4276f46442d14f3b8f864f3775821 ]
Otherwise it gets overwritten by register_netdev().
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Steffen Klassert [Mon, 3 Nov 2014 08:19:29 +0000 (09:19 +0100)]
sit: Use ipip6_tunnel_init as the ndo_init function.
[ Upstream commit
ebe084aafb7e93adf210e80043c9f69adf56820d ]
ipip6_tunnel_init() sets the dev->iflink via a call to
ipip6_tunnel_bind_dev(). After that, register_netdevice()
sets dev->iflink = -1. So we loose the iflink configuration
for ipv6 tunnels. Fix this by using ipip6_tunnel_init() as the
ndo_init function. Then ipip6_tunnel_init() is called after
dev->iflink is set to -1 from register_netdevice().
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Steffen Klassert [Mon, 3 Nov 2014 08:19:28 +0000 (09:19 +0100)]
vti6: Use vti6_dev_init as the ndo_init function.
[ Upstream commit
16a0231bf7dc3fb37e9b1f1cb1a277dc220b5c5e ]
vti6_dev_init() sets the dev->iflink via a call to
vti6_link_config(). After that, register_netdevice()
sets dev->iflink = -1. So we loose the iflink configuration
for vti6 tunnels. Fix this by using vti6_dev_init() as the
ndo_init function. Then vti6_dev_init() is called after
dev->iflink is set to -1 from register_netdevice().
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Steffen Klassert [Mon, 3 Nov 2014 08:19:27 +0000 (09:19 +0100)]
ip6_tunnel: Use ip6_tnl_dev_init as the ndo_init function.
[ Upstream commit
6c6151daaf2d8dc2046d9926539feed5f66bf74e ]
ip6_tnl_dev_init() sets the dev->iflink via a call to
ip6_tnl_link_config(). After that, register_netdevice()
sets dev->iflink = -1. So we loose the iflink configuration
for ipv6 tunnels. Fix this by using ip6_tnl_dev_init() as the
ndo_init function. Then ip6_tnl_dev_init() is called after
dev->iflink is set to -1 from register_netdevice().
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Greg Kroah-Hartman [Fri, 14 Nov 2014 18:25:11 +0000 (10:25 -0800)]
Revert "drivers/net: Disable UFO through virtio"
This reverts commit
2b52d6c6beda6308ba95024a1eba1dfc9515ba32 which was
commit
3d0ad09412ffe00c9afa201d01effdb6023d09b4 upstream.
Ben writes:
Please drop this patch for 3.14 and 3.17. It causes problems
for migration of VMs and we're probably going to revert part of
this. The following patch ("drivers/net, ipv6: Select IPv6
fragment idents for virtio UFO packets") might no longer apply,
in which case you can drop that as well until we have this
sorted out upstream.
Cc: Ben Hutchings <ben@decadent.org.uk>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Greg Kroah-Hartman [Fri, 14 Nov 2014 17:10:29 +0000 (09:10 -0800)]
Linux 3.14.24
Johannes Weiner [Thu, 2 Oct 2014 23:21:10 +0000 (16:21 -0700)]
mm: page_alloc: fix zone allocation fairness on UP
commit
abe5f972912d086c080be4bde67750630b6fb38b upstream.
The zone allocation batches can easily underflow due to higher-order
allocations or spills to remote nodes. On SMP that's fine, because
underflows are expected from concurrency and dealt with by returning 0.
But on UP, zone_page_state will just return a wrapped unsigned long,
which will get past the <= 0 check and then consider the zone eligible
until its watermarks are hit.
Commit
3a025760fc15 ("mm: page_alloc: spill to remote nodes before
waking kswapd") already made the counter-resetting use
atomic_long_read() to accomodate underflows from remote spills, but it
didn't go all the way with it.
Make it clear that these batches are expected to go negative regardless
of concurrency, and use atomic_long_read() everywhere.
Fixes:
81c0a2bb515f ("mm: page_alloc: fair zone allocator policy")
Reported-by: Vlastimil Babka <vbabka@suse.cz>
Reported-by: Leon Romanovsky <leon@leon.nu>
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Mel Gorman <mgorman@suse.de>
Cc: <stable@vger.kernel.org> [3.12+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Chris Mason [Tue, 4 Nov 2014 14:59:04 +0000 (06:59 -0800)]
Btrfs: fix kfree on list_head in btrfs_lookup_csums_range error cleanup
commit
6e5aafb27419f32575b27ef9d6a31e5d54661aca upstream.
If we hit any errors in btrfs_lookup_csums_range, we'll loop through all
the csums we allocate and free them. But the code was using list_entry
incorrectly, and ended up trying to free the on-stack list_head instead.
This bug came from commit
0678b6185
btrfs: Don't BUG_ON kzalloc error in btrfs_lookup_csums_range()
Signed-off-by: Chris Mason <clm@fb.com>
Reported-by: Erik Berg <btrfs@slipsprogrammoer.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Grant Likely [Mon, 3 Nov 2014 15:15:35 +0000 (15:15 +0000)]
of: Fix overflow bug in string property parsing functions
commit
a87fa1d81a9fb5e9adca9820e16008c40ad09f33 upstream.
The string property read helpers will run off the end of the buffer if
it is handed a malformed string property. Rework the parsers to make
sure that doesn't happen. At the same time add new test cases to make
sure the functions behave themselves.
The original implementations of of_property_read_string_index() and
of_property_count_strings() both open-coded the same block of parsing
code, each with it's own subtly different bugs. The fix here merges
functions into a single helper and makes the original functions static
inline wrappers around the helper.
One non-bugfix aspect of this patch is the addition of a new wrapper,
of_property_read_string_array(). The new wrapper is needed by the
device_properties feature that Rafael is working on and planning to
merge for v3.19. The implementation is identical both with and without
the new static inline wrapper, so it just got left in to reduce the
churn on the header file.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Darren Hart <darren.hart@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Yijing Wang [Fri, 7 Nov 2014 04:05:49 +0000 (12:05 +0800)]
sysfs: driver core: Fix glue dir race condition by gdp_mutex
commit
e4a60d139060975eb956717e4f63ae348d4d8cc5 upstream.
There is a race condition when removing glue directory.
It can be reproduced in following test:
path 1: Add first child device
device_add()
get_device_parent()
/*find parent from glue_dirs.list*/
list_for_each_entry(k, &dev->class->p->glue_dirs.list, entry)
if (k->parent == parent_kobj) {
kobj = kobject_get(k);
break;
}
....
class_dir_create_and_add()
path2: Remove last child device under glue dir
device_del()
cleanup_device_parent()
cleanup_glue_dir()
kobject_put(glue_dir);
If path2 has been called cleanup_glue_dir(), but not
call kobject_put(glue_dir), the glue dir is still
in parent's kset list. Meanwhile, path1 find the glue
dir from the glue_dirs.list. Path2 may release glue dir
before path1 call kobject_get(). So kernel will report
the warning and bug_on.
This is a "classic" problem we have of a kref in a list
that can be found while the last instance could be removed
at the same time.
This patch reuse gdp_mutex to fix this race condition.
The following calltrace is captured in kernel 3.4, but
the latest kernel still has this bug.
-----------------------------------------------------
<4>[ 3965.441471] WARNING: at ...include/linux/kref.h:41 kobject_get+0x33/0x40()
<4>[ 3965.441474] Hardware name: Romley
<4>[ 3965.441475] Modules linked in: isd_iop(O) isd_xda(O)...
...
<4>[ 3965.441605] Call Trace:
<4>[ 3965.441611] [<
ffffffff8103717a>] warn_slowpath_common+0x7a/0xb0
<4>[ 3965.441615] [<
ffffffff810371c5>] warn_slowpath_null+0x15/0x20
<4>[ 3965.441618] [<
ffffffff81215963>] kobject_get+0x33/0x40
<4>[ 3965.441624] [<
ffffffff812d1e45>] get_device_parent.isra.11+0x135/0x1f0
<4>[ 3965.441627] [<
ffffffff812d22d4>] device_add+0xd4/0x6d0
<4>[ 3965.441631] [<
ffffffff812d0dbc>] ? dev_set_name+0x3c/0x40
....
<2>[ 3965.441912] kernel BUG at ..../fs/sysfs/group.c:65!
<4>[ 3965.441915] invalid opcode: 0000 [#1] SMP
...
<4>[ 3965.686743] [<
ffffffff811a677e>] sysfs_create_group+0xe/0x10
<4>[ 3965.686748] [<
ffffffff810cfb04>] blk_trace_init_sysfs+0x14/0x20
<4>[ 3965.686753] [<
ffffffff811fcabb>] blk_register_queue+0x3b/0x120
<4>[ 3965.686756] [<
ffffffff812030bc>] add_disk+0x1cc/0x490
....
-------------------------------------------------------
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Weng Meiling <wengmeiling.weng@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wolfram Sang [Mon, 3 Nov 2014 20:16:16 +0000 (21:16 +0100)]
i2c: at91: don't account as iowait
commit
11cfbfb098b22d3e57f1f2be217cad20e2d48463 upstream.
iowait is for blkio [1]. I2C shouldn't use it.
[1] https://lkml.org/lkml/2014/11/3/317
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Krzysztof Kozlowski [Mon, 3 Nov 2014 14:07:05 +0000 (15:07 +0100)]
regulator: max77693: Fix use of uninitialized regulator config
commit
ca0c37a0b489bb14bf3e1549e7a8d0c9a17f4919 upstream.
Driver allocated on stack struct regulator_config but didn't initialize
it fully. Few fields (driver_data, ena_gpio) were left untouched. This
lead to using random ena_gpio values as GPIOs for max77693 regulators.
On occasion these values could match real GPIO numbers leading to
interfering with other drivers and to unsuccessful enable/disable of
regulator.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Fixes:
80b022e29bfd ("regulator: max77693: Add max77693 regualtor driver.")
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dan Streetman [Fri, 31 Oct 2014 19:41:34 +0000 (15:41 -0400)]
powerpc: use device_online/offline() instead of cpu_up/down()
commit
10ccaf178b2b961d8bca252d647ed7ed8aae2a20 upstream.
In powerpc pseries platform dlpar operations, use device_online() and
device_offline() instead of cpu_up() and cpu_down().
Calling cpu_up/down() directly does not update the cpu device offline
field, which is used to online/offline a cpu from sysfs. Calling
device_online/offline() instead keeps the sysfs cpu online value
correct. The hotplug lock, which is required to be held when calling
device_online/offline(), is already held when dlpar_online/offline_cpu()
are called, since they are called only from cpu_probe|release_store().
This patch fixes errors on phyp (PowerVM) systems that have cpu(s)
added/removed using dlpar operations; without this patch, the
/sys/devices/system/cpu/cpuN/online nodes do not correctly show the
online state of added/removed cpus.
Signed-off-by: Dan Streetman <ddstreet@ieee.org>
Cc: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Fixes:
0902a9044fa5 ("Driver core: Use generic offline/online for CPU offline/online")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Cohen [Tue, 14 Oct 2014 17:54:37 +0000 (10:54 -0700)]
pinctrl: baytrail: show output gpio state correctly on Intel Baytrail
commit
d90c33818967c5e5371961604ad98b4dea4fa3f4 upstream.
Even if a gpio pin is set to output, we still need to set INPUT_EN
functionality (by clearing INPUT_EN bit) to be able to read the pin's
level.
E.g. without this change, we'll always read low level state from sysfs.
Cc: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Hans de Goede [Wed, 22 Oct 2014 14:06:38 +0000 (16:06 +0200)]
acer-wmi: Add acpi_backlight=video quirk for the Acer KAV80
commit
183fd8fcd7f8afb7ac5ec68f83194872f9fecc84 upstream.
The acpi-video backlight interface on the Acer KAV80 is broken, and worse
it causes the entire machine to slow down significantly after a suspend/resume.
Blacklist it, and use the acer-wmi backlight interface instead. Note that
the KAV80 is somewhat unique in that it is the only Acer model where we
fall back to acer-wmi after blacklisting, rather then using the native
(e.g. intel) backlight driver. This is done because there is no native
backlight interface on this model.
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1128309
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jan Kara [Wed, 22 Oct 2014 07:17:24 +0000 (09:17 +0200)]
rbd: Fix error recovery in rbd_obj_read_sync()
commit
a8d4205623ae965e36c68629db306ca0695a2771 upstream.
When we fail to allocate page vector in rbd_obj_read_sync() we just
basically ignore the problem and continue which will result in an oops
later. Fix the problem by returning proper error.
CC: Yehuda Sadeh <yehuda@inktank.com>
CC: Sage Weil <sage@inktank.com>
CC: ceph-devel@vger.kernel.org
Coverity-id: 1226882
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Ilya Dryomov <idryomov@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alex Deucher [Sun, 26 Oct 2014 19:18:42 +0000 (15:18 -0400)]
drm/radeon: remove invalid pci id
commit
8c3e434769b1707fd2d24de5a2eb25fedc634c4a upstream.
0x4c6e is a secondary device id so should not be used
by the driver.
Noticed-by: Mark Kettenis <mark.kettenis@xs4all.nl>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alex Deucher [Mon, 13 Oct 2014 16:44:49 +0000 (12:44 -0400)]
drm/radeon/dpm: disable ulv support on SI
commit
6fa455935ab956248b165f150ec6ae9106210077 upstream.
Causes problems on some boards.
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=82889
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Sinclair Yeh [Fri, 31 Oct 2014 08:58:06 +0000 (09:58 +0100)]
drm/vmwgfx: Filter out modes those cannot be supported by the current VRAM size.
commit
9a72384d86b26cb8a2b25106677e1197f606668f upstream.
When screen objects are enabled, the bpp is assumed to be 32, otherwise
it is set to 16.
v2:
* Use u32 instead of u64 for assumed_bpp.
* Fixed mechanism to check for screen objects
* Limit the back buffer size to VRAM.
Signed-off-by: Sinclair Yeh <syeh@vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Kirill Tkhai [Mon, 22 Sep 2014 18:36:36 +0000 (22:36 +0400)]
sched: Use rq->rd in sched_setaffinity() under RCU read lock
commit
f1e3a0932f3a9554371792a7daaf1e0eb19f66d5 upstream.
Probability of use-after-free isn't zero in this place.
Signed-off-by: Kirill Tkhai <ktkhai@parallels.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/20140922183636.11015.83611.stgit@localhost
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Robert Baldyga [Mon, 10 Nov 2014 15:19:57 +0000 (09:19 -0600)]
usb: gadget: f_fs: remove redundant ffs_data_get()
[ Upstream commit
a3058a5d82e296daaca07411c3738a9ddd79f302 ]
During FunctionFS bind, ffs_data_get() function was called twice
(in functionfs_bind() and in ffs_do_functionfs_bind()), while on unbind
ffs_data_put() was called once (in functionfs_unbind() function).
In result refcount never reached value 0, and ffs memory resources has
been never released.
Since ffs_data_get() call in ffs_do_functionfs_bind() is redundant
and not neccessary, we remove it to have equal number of gets ans puts,
and free allocated memory after refcount reach 0.
Fixes: 5920cda (usb: gadget: FunctionFS: convert to new function
interface with backward compatibility)
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Felipe Balbi [Mon, 10 Nov 2014 15:06:20 +0000 (09:06 -0600)]
usb: gadget: udc: core: fix kernel oops with soft-connect
[ Upstream commit
bfa6b18c680450c17512c741ed1d818695747621 ]
Currently, there's no guarantee that udc->driver
will be valid when using soft_connect sysfs
interface. In fact, we can very easily trigger
a NULL pointer dereference by trying to disconnect
when a gadget driver isn't loaded.
Fix this bug:
~# echo disconnect > soft_connect
[ 33.685743] Unable to handle kernel NULL pointer dereference at virtual address
00000014
[ 33.694221] pgd =
ed0cc000
[ 33.697174] [
00000014] *pgd=
ae351831, *pte=
00000000, *ppte=
00000000
[ 33.703766] Internal error: Oops: 17 [#1] SMP ARM
[ 33.708697] Modules linked in: xhci_plat_hcd xhci_hcd snd_soc_davinci_mcasp snd_soc_tlv320aic3x snd_soc_edma snd_soc_omap snd_soc_evm snd_soc_core dwc3 snd_compress snd_pcm_dmaengine snd_pcm snd_timer snd lis3lv02d_i2c matrix_keypad lis3lv02d dwc3_omap input_polldev soundcore
[ 33.734372] CPU: 0 PID: 1457 Comm: bash Not tainted 3.17.0-09740-ga93416e-dirty #345
[ 33.742457] task:
ee71ce00 ti:
ee68a000 task.ti:
ee68a000
[ 33.748116] PC is at usb_udc_softconn_store+0xa4/0xec
[ 33.753416] LR is at mark_held_locks+0x78/0x90
[ 33.758057] pc : [<
c04df128>] lr : [<
c00896a4>] psr:
20000013
[ 33.758057] sp :
ee68bec8 ip :
c0c00008 fp :
ee68bee4
[ 33.770050] r10:
ee6b394c r9 :
ee68bf80 r8 :
ee6062c0
[ 33.775508] r7 :
00000000 r6 :
ee6062c0 r5 :
0000000b r4 :
ee739408
[ 33.782346] r3 :
00000000 r2 :
00000000 r1 :
ee71d390 r0 :
ee664170
[ 33.789168] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
[ 33.796636] Control:
10c5387d Table:
ad0cc059 DAC:
00000015
[ 33.802638] Process bash (pid: 1457, stack limit = 0xee68a248)
[ 33.808740] Stack: (0xee68bec8 to 0xee68c000)
[ 33.813299] bec0:
0000000b c0411284 ee6062c0 00000000 ee68bef4 ee68bee8
[ 33.821862] bee0:
c04112ac c04df090 ee68bf14 ee68bef8 c01c2868 c0411290 0000000b ee6b3940
[ 33.830419] bf00:
00000000 00000000 ee68bf4c ee68bf18 c01c1a24 c01c2818 00000000 00000000
[ 33.838990] bf20:
ee61b940 ee2f47c0 0000000b 000ce408 ee68bf80 c000f304 ee68a000 00000000
[ 33.847544] bf40:
ee68bf7c ee68bf50 c0152dd8 c01c1960 ee68bf7c c0170af8 ee68bf7c ee2f47c0
[ 33.856099] bf60:
ee2f47c0 000ce408 0000000b c000f304 ee68bfa4 ee68bf80 c0153330 c0152d34
[ 33.864653] bf80:
00000000 00000000 0000000b 000ce408 b6e7fb50 00000004 00000000 ee68bfa8
[ 33.873204] bfa0:
c000f080 c01532e8 0000000b 000ce408 00000001 000ce408 0000000b 00000000
[ 33.881763] bfc0:
0000000b 000ce408 b6e7fb50 00000004 0000000b 00000000 000c5758 00000000
[ 33.890319] bfe0:
00000000 bec2c924 b6de422d b6e1d226 40000030 00000001 75716d2f 00657565
[ 33.898890] [<
c04df128>] (usb_udc_softconn_store) from [<
c04112ac>] (dev_attr_store+0x28/0x34)
[ 33.907920] [<
c04112ac>] (dev_attr_store) from [<
c01c2868>] (sysfs_kf_write+0x5c/0x60)
[ 33.916200] [<
c01c2868>] (sysfs_kf_write) from [<
c01c1a24>] (kernfs_fop_write+0xd0/0x194)
[ 33.924773] [<
c01c1a24>] (kernfs_fop_write) from [<
c0152dd8>] (vfs_write+0xb0/0x1bc)
[ 33.932874] [<
c0152dd8>] (vfs_write) from [<
c0153330>] (SyS_write+0x54/0xb0)
[ 33.940247] [<
c0153330>] (SyS_write) from [<
c000f080>] (ret_fast_syscall+0x0/0x48)
[ 33.948160] Code:
e1a01007 e12fff33 e5140004 e5143008 (
e5933014)
[ 33.954625] ---[ end trace
f849bead94eab7ea ]---
Fixes: 2ccea03 (usb: gadget: introduce UDC Class)
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Felipe Balbi [Mon, 10 Nov 2014 14:56:40 +0000 (08:56 -0600)]
usb: gadget: function: acm: make f_acm pass USB20CV Chapter9
[ Upstream commit
52ec49a5e56a27c5b6f8217708783eff39f24c16 ]
During Halt Endpoint Test, our interrupt endpoint
will be disabled, which will clear out ep->desc
to NULL. Unless we call config_ep_by_speed() again,
we will not be able to enable this endpoint which
will make us fail that test.
Fixes: f9c56cd (usb: gadget: Clear usb_endpoint_descriptor
inside the struct usb_ep on disable)
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Felipe Balbi [Mon, 10 Nov 2014 14:55:44 +0000 (08:55 -0600)]
usb: dwc3: gadget: fix set_halt() bug with pending transfers
[ Upstream commit
7a60855972f0d3c014093046cb6f013a1ee5bb19 ]
According to our Gadget Framework API documentation,
->set_halt() *must* return -EAGAIN if we have pending
transfers (on either direction) or FIFO isn't empty (on
TX endpoints).
Fix this bug so that the mass storage gadget can be used
without stall=0 parameter.
This patch should be backported to all kernels since v3.2.
Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ondrej Kozina [Mon, 25 Aug 2014 09:49:54 +0000 (11:49 +0200)]
crypto: algif - avoid excessive use of socket buffer in skcipher
commit
e2cffb5f493a8b431dc87124388ea59b79f0bccb upstream.
On archs with PAGE_SIZE >= 64 KiB the function skcipher_alloc_sgl()
fails with -ENOMEM no matter what user space actually requested.
This is caused by the fact sock_kmalloc call inside the function tried
to allocate more memory than allowed by the default kernel socket buffer
size (kernel param net.core.optmem_max).
Signed-off-by: Ondrej Kozina <okozina@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jan Kara [Wed, 29 Oct 2014 23:35:00 +0000 (10:35 +1100)]
mm: Remove false WARN_ON from pagecache_isize_extended()
commit
f55fefd1a5a339b1bd08c120b93312d6eb64a9fb upstream.
The WARN_ON checking whether i_mutex is held in
pagecache_isize_extended() was wrong because some filesystems (e.g.
XFS) use different locks for serialization of truncates / writes. So
just remove the check.
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Andy Lutomirski [Wed, 15 Oct 2014 17:12:07 +0000 (10:12 -0700)]
x86, apic: Handle a bad TSC more gracefully
commit
b47dcbdc5161d3d5756f430191e2840d9b855492 upstream.
If the TSC is unusable or disabled, then this patch fixes:
- Confusion while trying to clear old APIC interrupts.
- Division by zero and incorrect programming of the TSC deadline
timer.
This fixes boot if the CPU has a TSC deadline timer but a missing or
broken TSC. The failure to boot can be observed with qemu using
-cpu qemu64,-tsc,+tsc-deadline
This also happens to me in nested KVM for unknown reasons.
With this patch, I can boot cleanly (although without a TSC).
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Cc: Bandan Das <bsd@redhat.com>
Link: http://lkml.kernel.org/r/e2fa274e498c33988efac0ba8b7e3120f7f92d78.1413393027.git.luto@amacapital.net
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Mathias Krause [Sat, 4 Oct 2014 21:06:39 +0000 (23:06 +0200)]
posix-timers: Fix stack info leak in timer_create()
commit
6891c4509c792209c44ced55a60f13954cb50ef4 upstream.
If userland creates a timer without specifying a sigevent info, we'll
create one ourself, using a stack local variable. Particularly will we
use the timer ID as sival_int. But as sigev_value is a union containing
a pointer and an int, that assignment will only partially initialize
sigev_value on systems where the size of a pointer is bigger than the
size of an int. On such systems we'll copy the uninitialized stack bytes
from the timer_create() call to userland when the timer actually fires
and we're going to deliver the signal.
Initialize sigev_value with 0 to plug the stack info leak.
Found in the PaX patch, written by the PaX Team.
Fixes:
5a9fa7307285 ("posix-timers: kill ->it_sigev_signo and...")
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Brad Spengler <spender@grsecurity.net>
Cc: PaX Team <pageexec@freemail.hu>
Link: http://lkml.kernel.org/r/1412456799-32339-1-git-send-email-minipli@googlemail.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Karl Beldan [Mon, 13 Oct 2014 12:34:41 +0000 (14:34 +0200)]
mac80211: fix typo in starting baserate for rts_cts_rate_idx
commit
c7abf25af0f41be4b50d44c5b185d52eea360cb8 upstream.
It affects non-(V)HT rates and can lead to selecting an rts_cts rate
that is not a basic rate or way superior to the reference rate (ATM
rates[0] used for the 1st attempt of the protected frame data).
E.g, assuming drivers register growing (bitrate) sorted tables of
ieee80211_rate-s, having :
- rates[0].idx == d'2 and basic_rates == b'10100
will select rts_cts idx b'10011 & ~d'(BIT(2)-1), i.e. 1, likewise
- rates[0].idx == d'2 and basic_rates == b'10001
will select rts_cts idx b'10000
The first is not a basic rate and the second is > rates[0].
Also, wrt severity of the addressed misbehavior, ATM we only have one
rts_cts_rate_idx rather than one per rate table entry, so this idx might
still point to bitrates > rates[1..MAX_RATES].
Fixes:
5253ffb8c9e1 ("mac80211: always pick a basic rate to tx RTS/CTS for pre-HT rates")
Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Imre Deak [Fri, 24 Oct 2014 17:29:10 +0000 (20:29 +0300)]
PM / Sleep: fix recovery during resuming from hibernation
commit
94fb823fcb4892614f57e59601bb9d4920f24711 upstream.
If a device's dev_pm_ops::freeze callback fails during the QUIESCE
phase, we don't rollback things correctly calling the thaw and complete
callbacks. This could leave some devices in a suspended state in case of
an error during resuming from hibernation.
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Hurley [Thu, 16 Oct 2014 17:51:30 +0000 (13:51 -0400)]
tty: Fix high cpu load if tty is unreleaseable
commit
37b164578826406a173ca7c20d9ba7430134d23e upstream.
Kernel oops can cause the tty to be unreleaseable (for example, if
n_tty_read() crashes while on the read_wait queue). This will cause
tty_release() to endlessly loop without sleeping.
Use a killable sleep timeout which grows by 2n+1 jiffies over the interval
[0, 120 secs.) and then jumps to forever (but still killable).
NB: killable just allows for the task to be rewoken manually, not
to be terminated.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Eric Sandeen [Mon, 4 Aug 2014 01:35:44 +0000 (11:35 +1000)]
xfs: avoid false quotacheck after unclean shutdown
commit
5ef828c4152726f56751c78ea844f08d2b2a4fa3 upstream.
The commit
83e782e xfs: Remove incore use of XFS_OQUOTA_ENFD and XFS_OQUOTA_CHKD
added a new function xfs_sb_quota_from_disk() which swaps
on-disk XFS_OQUOTA_* flags for in-core XFS_GQUOTA_* and XFS_PQUOTA_*
flags after the superblock is read.
However, if log recovery is required, the superblock is read again,
and the modified in-core flags are re-read from disk, so we have
XFS_OQUOTA_* flags in memory again. This causes the
XFS_QM_NEED_QUOTACHECK() test to be true, because the XFS_OQUOTA_CHKD
is still set, and not XFS_GQUOTA_CHKD or XFS_PQUOTA_CHKD.
Change xfs_sb_from_disk to call xfs_sb_quota_from disk and always
convert the disk flags to in-memory flags.
Add a lower-level function which can be called with "false" to
not convert the flags, so that the sb verifier can verify
exactly what was on disk, per Brian Foster's suggestion.
Reported-by: Cyril B. <cbay@excellency.fr>
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Cc: Arkadiusz Miśkiewicz <arekm@maven.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jan Kara [Wed, 22 Oct 2014 07:06:49 +0000 (09:06 +0200)]
quota: Properly return errors from dquot_writeback_dquots()
commit
474d2605d119479e5aa050f738632e63589d4bb5 upstream.
Due to a switched left and right side of an assignment,
dquot_writeback_dquots() never returned error. This could result in
errors during quota writeback to not be reported to userspace properly.
Fix it.
Coverity-id: 1226884
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Greg Kroah-Hartman [Thu, 30 Oct 2014 16:30:28 +0000 (09:30 -0700)]
PCI: Rename sysfs 'enabled' file back to 'enable'
commit
d8e7d53a2fc14e0830ab728cb84ee19933d3ac8d upstream.
Back in commit
5136b2da770d ("PCI: convert bus code to use dev_groups"),
I misstyped the 'enable' sysfs filename as 'enabled', which broke the
userspace API. This patch fixes that issue by renaming the file back.
Fixes:
5136b2da770d ("PCI: convert bus code to use dev_groups")
Reported-by: Jeff Epler <jepler@unpythonic.net>
Tested-by: Jeff Epler <jepler@unpythonic.net> # on v3.14-rt
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Jan Kara [Tue, 16 Sep 2014 20:23:10 +0000 (22:23 +0200)]
ext3: Don't check quota format when there are no quota files
commit
7938db449bbc55bbeb164bec7af406212e7e98f1 upstream.
The check whether quota format is set even though there are no
quota files with journalled quota is pointless and it actually
makes it impossible to turn off journalled quotas (as there's
no way to unset journalled quota format). Just remove the check.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Emmanuel Grumbach [Mon, 20 Oct 2014 05:29:55 +0000 (08:29 +0300)]
Revert "iwlwifi: mvm: treat EAPOLs like mgmt frames wrt rate"
commit
1ffde699aae127e7abdb98dbdedc2cc6a973a1a1 upstream.
This reverts commit
aa11bbf3df026d6b1c6b528bef634fd9de7c2619.
This commit was causing connection issues and is not needed
if IWL_MVM_RS_RSSI_BASED_INIT_RATE is set to false by default.
Regardless of the issues mentioned above, this patch added the
following WARNING:
WARNING: CPU: 0 PID: 3946 at drivers/net/wireless/iwlwifi/mvm/tx.c:190 iwl_mvm_set_tx_params+0x60a/0x6f0 [iwlmvm]()
Got an HT rate for a non data frame 0x8
CPU: 0 PID: 3946 Comm: wpa_supplicant Tainted: G O 3.17.0+ #6
Hardware name: LENOVO 20ANCTO1WW/20ANCTO1WW, BIOS GLET71WW (2.25 ) 07/02/2014
0000000000000009 ffffffff814fa911 ffff8804288db8f8 ffffffff81064f52
0000000000001808 ffff8804288db948 ffff88040add8660 ffff8804291b5600
0000000000000000 ffffffff81064fb7 ffffffffa07b73d0 0000000000000020
Call Trace:
[<
ffffffff814fa911>] ? dump_stack+0x41/0x51
[<
ffffffff81064f52>] ? warn_slowpath_common+0x72/0x90
[<
ffffffff81064fb7>] ? warn_slowpath_fmt+0x47/0x50
[<
ffffffffa07a39ea>] ? iwl_mvm_set_tx_params+0x60a/0x6f0 [iwlmvm]
[<
ffffffffa07a3cf8>] ? iwl_mvm_tx_skb+0x48/0x3c0 [iwlmvm]
[<
ffffffffa079cb9b>] ? iwl_mvm_mac_tx+0x7b/0x180 [iwlmvm]
[<
ffffffffa0746ce9>] ? __ieee80211_tx+0x2b9/0x3c0 [mac80211]
[<
ffffffffa07492f3>] ? ieee80211_tx+0xb3/0x100 [mac80211]
[<
ffffffffa0749c49>] ? ieee80211_subif_start_xmit+0x459/0xca0 [mac80211]
[<
ffffffff814116e7>] ? dev_hard_start_xmit+0x337/0x5f0
[<
ffffffff81430d46>] ? sch_direct_xmit+0x96/0x1f0
[<
ffffffff81411ba3>] ? __dev_queue_xmit+0x203/0x4f0
[<
ffffffff8142f670>] ? ether_setup+0x70/0x70
[<
ffffffff814e96a1>] ? packet_sendmsg+0xf81/0x1110
[<
ffffffff8140625c>] ? skb_free_datagram+0xc/0x40
[<
ffffffff813f7538>] ? sock_sendmsg+0x88/0xc0
[<
ffffffff813f7274>] ? move_addr_to_kernel.part.20+0x14/0x60
[<
ffffffff811c47c2>] ? __inode_wait_for_writeback+0x62/0xb0
[<
ffffffff813f7a91>] ? SYSC_sendto+0xf1/0x180
[<
ffffffff813f88f9>] ? __sys_recvmsg+0x39/0x70
[<
ffffffff8150066d>] ? system_call_fastpath+0x1a/0x1f
---[ end trace
cc19a150d311fc63 ]---
which was reported here: https://bugzilla.kernel.org/show_bug.cgi?id=85691
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
J. Bruce Fields [Wed, 22 Oct 2014 18:46:29 +0000 (14:46 -0400)]
nfsd4: fix crash on unknown operation number
commit
51904b08072a8bf2b9ed74d1bd7a5300a614471d upstream.
Unknown operation numbers are caught in nfsd4_decode_compound() which
sets op->opnum to OP_ILLEGAL and op->status to nfserr_op_illegal. The
error causes the main loop in nfsd4_proc_compound() to skip most
processing. But nfsd4_proc_compound also peeks ahead at the next
operation in one case and doesn't take similar precautions there.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jason Baron [Wed, 15 Oct 2014 20:47:28 +0000 (20:47 +0000)]
cpc925_edac: Report UE events properly
commit
fa19ac4b92bc2b5024af3e868f41f81fa738567a upstream.
Fix UE event being reported as HW_EVENT_ERR_CORRECTED.
Signed-off-by: Jason Baron <jbaron@akamai.com>
Link: http://lkml.kernel.org/r/8beb13803500076fef827eab33d523e355d83759.1413405053.git.jbaron@akamai.com
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jason Baron [Sat, 18 Oct 2014 14:06:32 +0000 (16:06 +0200)]
e7xxx_edac: Report CE events properly
commit
8030122a9ccf939186f8db96c318dbb99b5463f6 upstream.
Fix CE event being reported as HW_EVENT_ERR_UNCORRECTED.
Signed-off-by: Jason Baron <jbaron@akamai.com>
Link: http://lkml.kernel.org/r/e6dd616f2cd51583a7e77af6f639b86313c74144.1413405053.git.jbaron@akamai.com
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jason Baron [Wed, 15 Oct 2014 20:47:21 +0000 (20:47 +0000)]
i3200_edac: Report CE events properly
commit
8a3f075d6c9b3612b4a5fb2af8db82b38b20caf0 upstream.
Fix CE event being reported as HW_EVENT_ERR_UNCORRECTED.
Signed-off-by: Jason Baron <jbaron@akamai.com>
Link: http://lkml.kernel.org/r/d02465b4f30314b390c12c061502eda5e9d29c52.1413405053.git.jbaron@akamai.com
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jason Baron [Wed, 15 Oct 2014 20:47:24 +0000 (20:47 +0000)]
i82860_edac: Report CE events properly
commit
ab0543de6ff0877474f57a5aafbb51a61e88676f upstream.
Fix CE event being reported as HW_EVENT_ERR_UNCORRECTED.
Signed-off-by: Jason Baron <jbaron@akamai.com>
Link: http://lkml.kernel.org/r/7aee8e244a32ff86b399a8f966c4aae70296aae0.1413405053.git.jbaron@akamai.com
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jan Kara [Thu, 23 Oct 2014 02:13:39 +0000 (20:13 -0600)]
scsi: Fix error handling in SCSI_IOCTL_SEND_COMMAND
commit
84ce0f0e94ac97217398b3b69c21c7a62ebeed05 upstream.
When sg_scsi_ioctl() fails to prepare request to submit in
blk_rq_map_kern() we jump to a label where we just end up copying
(luckily zeroed-out) kernel buffer to userspace instead of reporting
error. Fix the problem by jumping to the right label.
CC: Jens Axboe <axboe@kernel.dk>
CC: linux-scsi@vger.kernel.org
Coverity-id: 1226871
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixed up the, now unused, out label.
Signed-off-by: Jens Axboe <axboe@fb.com>
Jan Kara [Wed, 29 Oct 2014 21:50:44 +0000 (14:50 -0700)]
lib/bitmap.c: fix undefined shift in __bitmap_shift_{left|right}()
commit
ea5d05b34aca25c066e0699512d0ffbd8ee6ac3e upstream.
If __bitmap_shift_left() or __bitmap_shift_right() are asked to shift by
a multiple of BITS_PER_LONG, they will try to shift a long value by
BITS_PER_LONG bits which is undefined. Change the functions to avoid
the undefined shift.
Coverity id: 1192175
Coverity id: 1192174
Signed-off-by: Jan Kara <jack@suse.cz>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johannes Weiner [Thu, 2 Oct 2014 23:16:57 +0000 (16:16 -0700)]
mm: memcontrol: do not iterate uninitialized memcgs
commit
2f7dd7a4100ad4affcb141605bef178ab98ccb18 upstream.
The cgroup iterators yield css objects that have not yet gone through
css_online(), but they are not complete memcgs at this point and so the
memcg iterators should not return them. Commit
d8ad30559715 ("mm/memcg:
iteration skip memcgs not yet fully initialized") set out to implement
exactly this, but it uses CSS_ONLINE, a cgroup-internal flag that does
not meet the ordering requirements for memcg, and so the iterator may
skip over initialized groups, or return partially initialized memcgs.
The cgroup core can not reasonably provide a clear answer on whether the
object around the css has been fully initialized, as that depends on
controller-specific locking and lifetime rules. Thus, introduce a
memcg-specific flag that is set after the memcg has been initialized in
css_online(), and read before mem_cgroup_iter() callers access the memcg
members.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Tejun Heo <tj@kernel.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Hugh Dickins <hughd@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: <stable@vger.kernel.org> [3.12+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wang Nan [Wed, 29 Oct 2014 21:50:18 +0000 (14:50 -0700)]
cgroup/kmemleak: add kmemleak_free() for cgroup deallocations.
commit
401507d67d5c2854f5a88b3f93f64fc6f267bca5 upstream.
Commit
ff7ee93f4715 ("cgroup/kmemleak: Annotate alloc_page() for cgroup
allocations") introduces kmemleak_alloc() for alloc_page_cgroup(), but
corresponding kmemleak_free() is missing, which makes kmemleak be
wrongly disabled after memory offlining. Log is pasted at the end of
this commit message.
This patch add kmemleak_free() into free_page_cgroup(). During page
offlining, this patch removes corresponding entries in kmemleak rbtree.
After that, the freed memory can be allocated again by other subsystems
without killing kmemleak.
bash # for x in 1 2 3 4; do echo offline > /sys/devices/system/memory/memory$x/state ; sleep 1; done ; dmesg | grep leak
Offlined Pages 32768
kmemleak: Cannot insert 0xffff880016969000 into the object search tree (overlaps existing)
CPU: 0 PID: 412 Comm: sleep Not tainted 3.17.0-rc5+ #86
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
Call Trace:
dump_stack+0x46/0x58
create_object+0x266/0x2c0
kmemleak_alloc+0x26/0x50
kmem_cache_alloc+0xd3/0x160
__sigqueue_alloc+0x49/0xd0
__send_signal+0xcb/0x410
send_signal+0x45/0x90
__group_send_sig_info+0x13/0x20
do_notify_parent+0x1bb/0x260
do_exit+0x767/0xa40
do_group_exit+0x44/0xa0
SyS_exit_group+0x17/0x20
system_call_fastpath+0x16/0x1b
kmemleak: Kernel memory leak detector disabled
kmemleak: Object 0xffff880016900000 (size 524288):
kmemleak: comm "swapper/0", pid 0, jiffies
4294667296
kmemleak: min_count = 0
kmemleak: count = 0
kmemleak: flags = 0x1
kmemleak: checksum = 0
kmemleak: backtrace:
log_early+0x63/0x77
kmemleak_alloc+0x4b/0x50
init_section_page_cgroup+0x7f/0xf5
page_cgroup_init+0xc5/0xd0
start_kernel+0x333/0x408
x86_64_start_reservations+0x2a/0x2c
x86_64_start_kernel+0xf5/0xfc
Fixes:
ff7ee93f4715 (cgroup/kmemleak: Annotate alloc_page() for cgroup allocations)
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Yu Zhao [Wed, 29 Oct 2014 21:50:26 +0000 (14:50 -0700)]
mm: free compound page with correct order
commit
5ddacbe92b806cd5b4f8f154e8e46ac267fff55c upstream.
Compound page should be freed by put_page() or free_pages() with correct
order. Not doing so will cause tail pages leaked.
The compound order can be obtained by compound_order() or use
HPAGE_PMD_ORDER in our case. Some people would argue the latter is
faster but I prefer the former which is more general.
This bug was observed not just on our servers (the worst case we saw is
11G leaked on a 48G machine) but also on our workstations running Ubuntu
based distro.
$ cat /proc/vmstat | grep thp_zero_page_alloc
thp_zero_page_alloc 55
thp_zero_page_alloc_failed 0
This means there is (thp_zero_page_alloc - 1) * (2M - 4K) memory leaked.
Fixes:
97ae17497e99 ("thp: implement refcounting for huge zero page")
Signed-off-by: Yu Zhao <yuzhao@google.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: David Rientjes <rientjes@google.com>
Cc: Bob Liu <lliubbo@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Andriy Skulysh [Wed, 29 Oct 2014 21:50:59 +0000 (14:50 -0700)]
sh: fix sh770x SCIF memory regions
commit
5417421b270229bfce0795ccc99a4b481e4954ca upstream.
Resources scif1_resources & scif2_resources overlap. Actual SCIF region
size is 0x10.
This is regression from commit
d850acf975be ("sh: Declare SCIF register
base and IRQ as resources")
Signed-off-by: Andriy Skulysh <askulysh@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Wed, 29 Oct 2014 08:07:30 +0000 (09:07 +0100)]
USB: kobil_sct: fix non-atomic allocation in write path
commit
191252837626fca0de694c18bb2aa64c118eda89 upstream.
Write may be called from interrupt context so make sure to use
GFP_ATOMIC for all allocations in write.
Fixes:
1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Hans de Goede [Wed, 1 Oct 2014 09:29:14 +0000 (11:29 +0200)]
usb: Do not allow usb_alloc_streams on unconfigured devices
commit
90a646c770c50cc206ceba0d7b50453c46c13c36 upstream.
This commit fixes the following oops:
[10238.622067] scsi host3: uas_eh_bus_reset_handler start
[10240.766164] usb 3-4: reset SuperSpeed USB device number 3 using xhci_hcd
[10245.779365] usb 3-4: device descriptor read/8, error -110
[10245.883331] usb 3-4: reset SuperSpeed USB device number 3 using xhci_hcd
[10250.897603] usb 3-4: device descriptor read/8, error -110
[10251.058200] BUG: unable to handle kernel NULL pointer dereference at
0000000000000040
[10251.058244] IP: [<
ffffffff815ac6e1>] xhci_check_streams_endpoint+0x91/0x140
<snip>
[10251.059473] Call Trace:
[10251.059487] [<
ffffffff815aca6c>] xhci_calculate_streams_and_bitmask+0xbc/0x130
[10251.059520] [<
ffffffff815aeb5f>] xhci_alloc_streams+0x10f/0x5a0
[10251.059548] [<
ffffffff810a4685>] ? check_preempt_curr+0x75/0xa0
[10251.059575] [<
ffffffff810a46dc>] ? ttwu_do_wakeup+0x2c/0x100
[10251.059601] [<
ffffffff810a49e6>] ? ttwu_do_activate.constprop.111+0x66/0x70
[10251.059635] [<
ffffffff815779ab>] usb_alloc_streams+0xab/0xf0
[10251.059662] [<
ffffffffc0616b48>] uas_configure_endpoints+0x128/0x150 [uas]
[10251.059694] [<
ffffffffc0616bac>] uas_post_reset+0x3c/0xb0 [uas]
[10251.059722] [<
ffffffff815727d9>] usb_reset_device+0x1b9/0x2a0
[10251.059749] [<
ffffffffc0616f42>] uas_eh_bus_reset_handler+0xb2/0x190 [uas]
[10251.059781] [<
ffffffff81514293>] scsi_try_bus_reset+0x53/0x110
[10251.059808] [<
ffffffff815163b7>] scsi_eh_bus_reset+0xf7/0x270
<snip>
The problem is the following call sequence (simplified):
1) usb_reset_device
2) usb_reset_and_verify_device
2) hub_port_init
3) hub_port_finish_reset
3) xhci_discover_or_reset_device
This frees xhci->devs[slot_id]->eps[ep_index].ring for all eps but 0
4) usb_get_device_descriptor
This fails
5) hub_port_init fails
6) usb_reset_and_verify_device fails, does not restore device config
7) uas_post_reset
8) xhci_alloc_streams
NULL deref on the free-ed ring
This commit fixes this by not allowing usb_alloc_streams to continue if
the device is not configured.
Note that we do allow usb_free_streams to continue after a (logical)
disconnect, as it is necessary to explicitly free the streams at the xhci
controller level.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Wed, 29 Oct 2014 08:07:31 +0000 (09:07 +0100)]
USB: opticon: fix non-atomic allocation in write path
commit
e681286de221af78fc85db9222b6a203148c005a upstream.
Write may be called from interrupt context so make sure to use
GFP_ATOMIC for all allocations in write.
Fixes:
0d930e51cfe6 ("USB: opticon: Add Opticon OPN2001 write support")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
projects / sdk / emulator / emulator-kernel.git / log