Zhihao Cheng [Sat, 30 Jul 2022 11:28:37 +0000 (19:28 +0800)]
ubi: Fix UAF wear-leveling entry in eraseblk_count_seq_show()
Wear-leveling entry could be freed in error path, which may be accessed
again in eraseblk_count_seq_show(), for example:
__erase_worker eraseblk_count_seq_show
wl = ubi->lookuptbl[*block_number]
if (wl)
wl_entry_destroy
ubi->lookuptbl[e->pnum] = NULL
kmem_cache_free(ubi_wl_entry_slab, e)
erase_count = wl->ec // UAF!
Wear-leveling entry updating/accessing in ubi->lookuptbl should be
protected by ubi->wl_lock, fix it by adding ubi->wl_lock to serialize
wl entry accessing between wl_entry_destroy() and
eraseblk_count_seq_show().
Fetch a reproducer in [Link].
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216305
Fixes:
7bccd12d27b7e3 ("ubi: Add debugfs file for tracking PEB state")
Fixes:
801c135ce73d5d ("UBI: Unsorted Block Images")
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Zhihao Cheng [Tue, 9 Aug 2022 07:06:19 +0000 (15:06 +0800)]
ubi: fastmap: Fix missed fm_anchor PEB in wear-leveling after disabling fastmap
After disabling fastmap(ubi->fm_disabled = 1), fastmap won't be updated,
fm_anchor PEB is missed being scheduled for erasing. Besides, fm_anchor
PEB may have smallest erase count, it doesn't participate wear-leveling.
The difference of erase count between fm_anchor PEB and other PEBs will
be larger and larger later on.
In which situation fastmap can be disabled? Initially, we have an UBI
image with fastmap. Then the image will be atttached without module
parameter 'fm_autoconvert', ubi turns to full scanning mode in one
random attaching process(eg. bad fastmap caused by powercut), ubi
fastmap is disabled since then.
Fix it by not getting fm_anchor if fastmap is disabled in
ubi_refill_pools().
Fetch a reproducer in [Link].
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216341
Fixes:
4b68bf9a69d22d ("ubi: Select fastmap anchor PEBs considering ...")
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Zhihao Cheng [Wed, 1 Jun 2022 03:00:00 +0000 (11:00 +0800)]
ubifs: ubifs_releasepage: Remove ubifs_assert(0) to valid this process
There are two states for ubifs writing pages:
1. Dirty, Private
2. Not Dirty, Not Private
The normal process cannot go to ubifs_releasepage() which means there
exists pages being private but not dirty. Reproducer[1] shows that it
could occur (which maybe related to [2]) with following process:
PA PB PC
lock(page)[PA]
ubifs_write_end
attach_page_private // set Private
__set_page_dirty_nobuffers // set Dirty
unlock(page)
write_cache_pages[PA]
lock(page)
clear_page_dirty_for_io(page) // clear Dirty
ubifs_writepage
do_truncation[PB]
truncate_setsize
i_size_write(inode, newsize) // newsize = 0
i_size = i_size_read(inode) // i_size = 0
end_index = i_size >> PAGE_SHIFT
if (page->index > end_index)
goto out // jump
out:
unlock(page) // Private, Not Dirty
generic_fadvise[PC]
lock(page)
invalidate_inode_page
try_to_release_page
ubifs_releasepage
ubifs_assert(c, 0)
// bad assertion!
unlock(page)
truncate_pagecache[PB]
Then we may get following assertion failed:
UBIFS error (ubi0:0 pid 1683): ubifs_assert_failed [ubifs]:
UBIFS assert failed: 0, in fs/ubifs/file.c:1513
UBIFS warning (ubi0:0 pid 1683): ubifs_ro_mode [ubifs]:
switched to read-only mode, error -22
CPU: 2 PID: 1683 Comm: aa Not tainted 5.16.0-rc5-00184-g0bca5994cacc-dirty #308
Call Trace:
dump_stack+0x13/0x1b
ubifs_ro_mode+0x54/0x60 [ubifs]
ubifs_assert_failed+0x4b/0x80 [ubifs]
ubifs_releasepage+0x67/0x1d0 [ubifs]
try_to_release_page+0x57/0xe0
invalidate_inode_page+0xfb/0x130
__invalidate_mapping_pages+0xb9/0x280
invalidate_mapping_pagevec+0x12/0x20
generic_fadvise+0x303/0x3c0
ksys_fadvise64_64+0x4c/0xb0
[1] https://bugzilla.kernel.org/show_bug.cgi?id=215373
[2] https://linux-mtd.infradead.narkive.com/NQoBeT1u/patch-rfc-ubifs-fix-assert-failed-in-ubifs-set-page-dirty
Fixes:
1e51764a3c2ac0 ("UBIFS: add new flash file system")
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Zhihao Cheng [Wed, 1 Jun 2022 02:59:59 +0000 (10:59 +0800)]
ubifs: ubifs_writepage: Mark page dirty after writing inode failed
There are two states for ubifs writing pages:
1. Dirty, Private
2. Not Dirty, Not Private
There is a third possibility which maybe related to [1] that page is
private but not dirty caused by following process:
PA
lock(page)
ubifs_write_end
attach_page_private // set Private
__set_page_dirty_nobuffers // set Dirty
unlock(page)
write_cache_pages
lock(page)
clear_page_dirty_for_io(page) // clear Dirty
ubifs_writepage
write_inode
// fail, goto out, following codes are not executed
// do_writepage
// set_page_writeback // set Writeback
// detach_page_private // clear Private
// end_page_writeback // clear Writeback
out:
unlock(page) // Private, Not Dirty
PB
ksys_fadvise64_64
generic_fadvise
invalidate_inode_page
// page is neither Dirty nor Writeback
invalidate_complete_page
// page_has_private is true
try_to_release_page
ubifs_releasepage
ubifs_assert(c, 0) !!!
Then we may get following assertion failed:
UBIFS error (ubi0:0 pid 1492): ubifs_assert_failed [ubifs]:
UBIFS assert failed: 0, in fs/ubifs/file.c:1499
UBIFS warning (ubi0:0 pid 1492): ubifs_ro_mode [ubifs]:
switched to read-only mode, error -22
CPU: 2 PID: 1492 Comm: aa Not tainted 5.16.0-rc2-00012-g7bb767dee0ba-dirty
Call Trace:
dump_stack+0x13/0x1b
ubifs_ro_mode+0x54/0x60 [ubifs]
ubifs_assert_failed+0x4b/0x80 [ubifs]
ubifs_releasepage+0x7e/0x1e0 [ubifs]
try_to_release_page+0x57/0xe0
invalidate_inode_page+0xfb/0x130
invalidate_mapping_pagevec+0x12/0x20
generic_fadvise+0x303/0x3c0
vfs_fadvise+0x35/0x40
ksys_fadvise64_64+0x4c/0xb0
Jump [2] to find a reproducer.
[1] https://linux-mtd.infradead.narkive.com/NQoBeT1u/patch-rfc-ubifs-fix-assert-failed-in-ubifs-set-page-dirty
[2] https://bugzilla.kernel.org/show_bug.cgi?id=215357
Fixes:
1e51764a3c2ac0 ("UBIFS: add new flash file system")
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Zhihao Cheng [Fri, 18 Nov 2022 09:02:36 +0000 (17:02 +0800)]
ubifs: dirty_cow_znode: Fix memleak in error handling path
Following process will cause a memleak for copied up znode:
dirty_cow_znode
zn = copy_znode(c, znode);
err = insert_old_idx(c, zbr->lnum, zbr->offs);
if (unlikely(err))
return ERR_PTR(err); // No one refers to zn.
Fix it by adding copied znode back to tnc, then it will be freed
by ubifs_destroy_tnc_subtree() while closing tnc.
Fetch a reproducer in [Link].
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216705
Fixes:
1e51764a3c2a ("UBIFS: add new flash file system")
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Zhihao Cheng [Fri, 18 Nov 2022 09:02:35 +0000 (17:02 +0800)]
ubifs: Re-statistic cleaned znode count if commit failed
Dirty znodes will be written on flash in committing process with
following states:
process A | znode state
------------------------------------------------------
do_commit | DIRTY_ZNODE
ubifs_tnc_start_commit | DIRTY_ZNODE
get_znodes_to_commit | DIRTY_ZNODE | COW_ZNODE
layout_commit | DIRTY_ZNODE | COW_ZNODE
fill_gap | 0
write master | 0 or OBSOLETE_ZNODE
process B | znode state
------------------------------------------------------
do_commit | DIRTY_ZNODE[1]
ubifs_tnc_start_commit | DIRTY_ZNODE
get_znodes_to_commit | DIRTY_ZNODE | COW_ZNODE
ubifs_tnc_end_commit | DIRTY_ZNODE | COW_ZNODE
write_index | 0
write master | 0 or OBSOLETE_ZNODE[2] or
| DIRTY_ZNODE[3]
[1] znode is dirtied without concurrent committing process
[2] znode is copied up (re-dirtied by other process) before cleaned
up in committing process
[3] znode is re-dirtied after cleaned up in committing process
Currently, the clean znode count is updated in free_obsolete_znodes(),
which is called only in normal path. If do_commit failed, clean znode
count won't be updated, which triggers a failure ubifs assertion[4] in
ubifs_tnc_close():
ubifs_assert_failed [ubifs]: UBIFS assert failed: freed == n
[4] Commit
380347e9ca7682 ("UBIFS: Add an assertion for clean_zn_cnt").
Fix it by re-statisticing cleaned znode count in tnc_destroy_cnext().
Fetch a reproducer in [Link].
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216704
Fixes:
1e51764a3c2a ("UBIFS: add new flash file system")
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
ZhaoLong Wang [Mon, 14 Nov 2022 14:46:46 +0000 (22:46 +0800)]
ubi: Fix permission display of the debugfs files
Some interface files in debugfs support the read method
dfs_file_read(), but their rwx permissions is shown as
unreadable.
In the user mode, the following problem can be clearly seen:
# ls -l /sys/kernel/debug/ubi/ubi0/
total 0
--w------- 1 root root 0 Oct 22 16:26 chk_fastmap
--w------- 1 root root 0 Oct 22 16:26 chk_gen
--w------- 1 root root 0 Oct 22 16:26 chk_io
-r-------- 1 root root 0 Oct 22 16:26 detailed_erase_block_info
--w------- 1 root root 0 Oct 22 16:26 tst_disable_bgt
--w------- 1 root root 0 Oct 22 16:26 tst_emulate_bitflips
--w------- 1 root root 0 Oct 22 16:26 tst_emulate_io_failures
--w------- 1 root root 0 Oct 22 16:26 tst_emulate_power_cut
--w------- 1 root root 0 Oct 22 16:26 tst_emulate_power_cut_max
--w------- 1 root root 0 Oct 22 16:26 tst_emulate_power_cut_min
It shows that these files do not have read permission 'r',
but we can actually read their contents.
# echo 1 > /sys/kernel/debug/ubi/ubi0/chk_io
# cat /sys/kernel/debug/ubi/ubi0/chk_io
1
User's permission access is determined by capabilities.
Of course, the root user is not restricted from reading
these files.
When reading a debugfs file, the process is as follows:
ksys_read()
vfs_read()
if (file->f_op->read)
file->f_op->read()
full_proxy_open()
real_fops->read()
dfs_file_read() -- Read method of debugfs file.
else if (file->f_op->read_iter)
new_sync_read()
else
ret = -EINVAL -- Return -EINVAL if no read method.
This indicates that the debugfs file can be read as long as the read
method of the debugfs file is registered. This patch adds the read
permission display for file that support the read method.
Signed-off-by: ZhaoLong Wang <wangzhaolong1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Yang Yingliang [Mon, 14 Nov 2022 10:26:24 +0000 (18:26 +0800)]
ubi: Fix possible null-ptr-deref in ubi_free_volume()
It willl cause null-ptr-deref in the following case:
uif_init()
ubi_add_volume()
cdev_add() -> if it fails, call kill_volumes()
device_register()
kill_volumes() -> if ubi_add_volume() fails call this function
ubi_free_volume()
cdev_del()
device_unregister() -> trying to delete a not added device,
it causes null-ptr-deref
So in ubi_free_volume(), it delete devices whether they are added
or not, it will causes null-ptr-deref.
Handle the error case whlie calling ubi_add_volume() to fix this
problem. If add volume fails, set the corresponding vol to null,
so it can not be accessed in kill_volumes() and release the
resource in ubi_add_volume() error path.
Fixes:
801c135ce73d ("UBI: Unsorted Block Images")
Suggested-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
ZhaoLong Wang [Tue, 25 Oct 2022 08:52:49 +0000 (16:52 +0800)]
ubi: fastmap: Add fastmap control support for module parameter
The UBI driver can use the IOCTL to disable the fastmap after the
mainline
669d204469c4 ("ubi: fastmap: Add fastmap control support
for 'UBI_IOCATT' ioctl"). To destroy the fastmap on a old image,
we need to reattach the device in user space.
However, if the UBI driver build in kernel and the UBI volume is
the root partition, the UBI device cannot be reattached in user
space. To disable fastmap in this case, the UBI must provide the
kernel cmdline parameters to disable fastmap during attach.
This patch add 'enable_fm' as 5th module init parameter of mtd=xx to
control fastmap enable or not. When the value is 0, fastmap will not
create and existed fastmap will destroyed for the given ubi device.
Default value is 0.
To enable or disable fastmap during module loading, fm_autoconvert
must be set to non-zero.
+-----------------+---------------+---------------------------+
| \ | enable_fm=0 | enable_fm=1 |
+-----------------+---------------+---------------------------+
|fm_autoconvert=Y | disable fm | enable fm |
+---------------------------------+---------------------------+
|fm_autoconvert=N | disable fm | Enable fastmap if fastmap |
| | | exists on the old image |
+-------------------------------------------------------------+
Example:
# - Attach mtd1 to ubi1, disable fastmap, mtd2 to ubi2, enable
fastmap.
# modprobe ubi mtd=1,0,0,1,0 mtd=2,0,0,2,1 fm_autoconvert=1
# - If 5th parameter is not specified, the value is 0, fastmap is
disable
# modprobe ubi mtd=1 fm_autoconvert=1
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216623
Signed-off-by: ZhaoLong Wang <wangzhaolong1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Li Zetao [Sat, 22 Oct 2022 11:52:11 +0000 (19:52 +0800)]
ubifs: Fix memory leak in alloc_wbufs()
kmemleak reported a sequence of memory leaks, and show them as following:
unreferenced object 0xffff8881575f8400 (size 1024):
comm "mount", pid 19625, jiffies
4297119604 (age 20.383s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<
ffffffff8176cecd>] __kmalloc+0x4d/0x150
[<
ffffffffa0406b2b>] ubifs_mount+0x307b/0x7170 [ubifs]
[<
ffffffff819fa8fd>] legacy_get_tree+0xed/0x1d0
[<
ffffffff81936f2d>] vfs_get_tree+0x7d/0x230
[<
ffffffff819b2bd4>] path_mount+0xdd4/0x17b0
[<
ffffffff819b37aa>] __x64_sys_mount+0x1fa/0x270
[<
ffffffff83c14295>] do_syscall_64+0x35/0x80
[<
ffffffff83e0006a>] entry_SYSCALL_64_after_hwframe+0x46/0xb0
unreferenced object 0xffff8881798a6e00 (size 512):
comm "mount", pid 19677, jiffies
4297121912 (age 37.816s)
hex dump (first 32 bytes):
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
backtrace:
[<
ffffffff8176cecd>] __kmalloc+0x4d/0x150
[<
ffffffffa0418342>] ubifs_wbuf_init+0x52/0x480 [ubifs]
[<
ffffffffa0406ca5>] ubifs_mount+0x31f5/0x7170 [ubifs]
[<
ffffffff819fa8fd>] legacy_get_tree+0xed/0x1d0
[<
ffffffff81936f2d>] vfs_get_tree+0x7d/0x230
[<
ffffffff819b2bd4>] path_mount+0xdd4/0x17b0
[<
ffffffff819b37aa>] __x64_sys_mount+0x1fa/0x270
[<
ffffffff83c14295>] do_syscall_64+0x35/0x80
[<
ffffffff83e0006a>] entry_SYSCALL_64_after_hwframe+0x46/0xb0
The problem is that the ubifs_wbuf_init() returns an error in the
loop which in the alloc_wbufs(), then the wbuf->buf and wbuf->inodes
that were successfully alloced before are not freed.
Fix it by adding error hanging path in alloc_wbufs() which frees
the memory alloced before when ubifs_wbuf_init() returns an error.
Fixes:
1e51764a3c2a ("UBIFS: add new flash file system")
Signed-off-by: Li Zetao <lizetao1@huawei.com>
Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Li Zetao [Fri, 21 Oct 2022 10:21:57 +0000 (18:21 +0800)]
ubi: Fix unreferenced object reported by kmemleak in ubi_resize_volume()
There is a memory leaks problem reported by kmemleak:
unreferenced object 0xffff888102007a00 (size 128):
comm "ubirsvol", pid 32090, jiffies
4298464136 (age 2361.231s)
hex dump (first 32 bytes):
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................
backtrace:
[<
ffffffff8176cecd>] __kmalloc+0x4d/0x150
[<
ffffffffa02a9a36>] ubi_eba_create_table+0x76/0x170 [ubi]
[<
ffffffffa029764e>] ubi_resize_volume+0x1be/0xbc0 [ubi]
[<
ffffffffa02a3321>] ubi_cdev_ioctl+0x701/0x1850 [ubi]
[<
ffffffff81975d2d>] __x64_sys_ioctl+0x11d/0x170
[<
ffffffff83c142a5>] do_syscall_64+0x35/0x80
[<
ffffffff83e0006a>] entry_SYSCALL_64_after_hwframe+0x46/0xb0
This is due to a mismatch between create and destroy interfaces, and
in detail that "new_eba_tbl" created by ubi_eba_create_table() but
destroyed by kfree(), while will causing "new_eba_tbl->entries" not
freed.
Fix it by replacing kfree(new_eba_tbl) with
ubi_eba_destroy_table(new_eba_tbl)
Fixes:
799dca34ac54 ("UBI: hide EBA internals")
Signed-off-by: Li Zetao <lizetao1@huawei.com>
Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Li Zetao [Fri, 21 Oct 2022 10:21:56 +0000 (18:21 +0800)]
ubi: Fix use-after-free when volume resizing failed
There is an use-after-free problem reported by KASAN:
==================================================================
BUG: KASAN: use-after-free in ubi_eba_copy_table+0x11f/0x1c0 [ubi]
Read of size 8 at addr
ffff888101eec008 by task ubirsvol/4735
CPU: 2 PID: 4735 Comm: ubirsvol
Not tainted 6.1.0-rc1-00003-g84fa3304a7fc-dirty #14
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
BIOS 1.14.0-1.fc33 04/01/2014
Call Trace:
<TASK>
dump_stack_lvl+0x34/0x44
print_report+0x171/0x472
kasan_report+0xad/0x130
ubi_eba_copy_table+0x11f/0x1c0 [ubi]
ubi_resize_volume+0x4f9/0xbc0 [ubi]
ubi_cdev_ioctl+0x701/0x1850 [ubi]
__x64_sys_ioctl+0x11d/0x170
do_syscall_64+0x35/0x80
entry_SYSCALL_64_after_hwframe+0x46/0xb0
</TASK>
When ubi_change_vtbl_record() returns an error in ubi_resize_volume(),
"new_eba_tbl" will be freed on error handing path, but it is holded
by "vol->eba_tbl" in ubi_eba_replace_table(). It means that the liftcycle
of "vol->eba_tbl" and "vol" are different, so when resizing volume in
next time, it causing an use-after-free fault.
Fix it by not freeing "new_eba_tbl" after it replaced in
ubi_eba_replace_table(), while will be freed in next volume resizing.
Fixes:
801c135ce73d ("UBI: Unsorted Block Images")
Signed-off-by: Li Zetao <lizetao1@huawei.com>
Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Zhihao Cheng [Tue, 11 Oct 2022 03:47:32 +0000 (11:47 +0800)]
ubifs: Reserve one leb for each journal head while doing budget
UBIFS calculates available space by c->main_bytes - c->lst.total_used
(which means non-index lebs' free and dirty space is accounted into
total available), then index lebs and four lebs (one for gc_lnum, one
for deletions, two for journal heads) are deducted.
In following situation, ubifs may get -ENOSPC from make_reservation():
LEB 84: DATAHD free 122880 used 1920 dirty 2176 dark 6144
LEB 110:DELETION free 126976 used 0 dirty 0 dark 6144 (empty)
LEB 201:gc_lnum free 126976 used 0 dirty 0 dark 6144
LEB 272:GCHD free 77824 used 47672 dirty 1480 dark 6144
LEB 356:BASEHD free 0 used 39776 dirty 87200 dark 6144
OTHERS: index lebs, zero-available non-index lebs
UBIFS calculates the available bytes is 6888 (How to calculate it:
126976 * 5[remain main bytes] - 1920[used] - 47672[used] - 39776[used] -
126976 * 1[deletions] - 126976 * 1[gc_lnum] - 126976 * 2[journal heads]
- 6144 * 5[dark] = 6888) after doing budget, however UBIFS cannot use
BASEHD's dirty space(87200), because UBIFS cannot find next BASEHD to
reclaim current BASEHD. (c->bi.min_idx_lebs equals to c->lst.idx_lebs,
the empty leb won't be found by ubifs_find_free_space(), and dirty index
lebs won't be picked as gced lebs. All non-index lebs has dirty space
less then c->dead_wm, non-index lebs won't be picked as gced lebs
either. So new free lebs won't be produced.). See more details in Link.
To fix it, reserve one leb for each journal head while doing budget.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216562
Fixes:
1e51764a3c2ac0 ("UBIFS: add new flash file system")
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Zhihao Cheng [Tue, 11 Oct 2022 03:47:31 +0000 (11:47 +0800)]
ubifs: do_rename: Fix wrong space budget when target inode's nlink > 1
If target inode is a special file (eg. block/char device) with nlink
count greater than 1, the inode with ui->data will be re-written on
disk. However, UBIFS losts target inode's data_len while doing space
budget. Bad space budget may let make_reservation() return with -ENOSPC,
which could turn ubifs to read-only mode in do_writepage() process.
Fetch a reproducer in [Link].
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216494
Fixes:
1e51764a3c2ac0 ("UBIFS: add new flash file system")
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Zhihao Cheng [Tue, 11 Oct 2022 03:47:30 +0000 (11:47 +0800)]
ubifs: Fix wrong dirty space budget for dirty inode
Each dirty inode should reserve 'c->bi.inode_budget' bytes in space
budget calculation. Currently, space budget for dirty inode reports
more space than what UBIFS actually needs to write.
Fixes:
1e51764a3c2ac0 ("UBIFS: add new flash file system")
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Zhihao Cheng [Tue, 11 Oct 2022 03:47:29 +0000 (11:47 +0800)]
ubifs: Add comments and debug info for ubifs_xrename()
Just like other operations (eg. ubifs_create, do_rename), add comments
and debug information for ubifs_xrename().
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Zhihao Cheng [Tue, 11 Oct 2022 03:47:28 +0000 (11:47 +0800)]
ubifs: Rectify space budget for ubifs_xrename()
There is no space budget for ubifs_xrename(). It may let
make_reservation() return with -ENOSPC, which could turn
ubifs to read-only mode in do_writepage() process.
Fix it by adding space budget for ubifs_xrename().
Fetch a reproducer in [Link].
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216569
Fixes:
9ec64962afb170 ("ubifs: Implement RENAME_EXCHANGE")
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Zhihao Cheng [Tue, 11 Oct 2022 03:47:27 +0000 (11:47 +0800)]
ubifs: Rectify space budget for ubifs_symlink() if symlink is encrypted
Fix bad space budget when symlink file is encrypted. Bad space budget
may let make_reservation() return with -ENOSPC, which could turn ubifs
to read-only mode in do_writepage() process.
Fetch a reproducer in [Link].
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216490
Fixes:
ca7f85be8d6cf9 ("ubifs: Add support for encrypted symlinks")
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Mårten Lindahl [Thu, 13 Oct 2022 12:02:49 +0000 (14:02 +0200)]
ubi: block: Reduce warning print to info for static volumes
If volume size is not multiple of the sector size 512 a warning is
printed saying that the last non-sector aligned bytes will be ignored.
This should be valid for resizable volumes, but when creating static
volumes which are read only this will always be printed even if the
unaligned data is deliberate.
The message is still valid but the severity should be lowered for static
volumes.
Signed-off-by: Mårten Lindahl <marten.lindahl@axis.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Liu Shixin [Thu, 20 Oct 2022 04:30:31 +0000 (12:30 +0800)]
ubifs: Fix memory leak in ubifs_sysfs_init()
When insmod ubifs.ko, a kmemleak reported as below:
unreferenced object 0xffff88817fb1a780 (size 8):
comm "insmod", pid 25265, jiffies
4295239702 (age 100.130s)
hex dump (first 8 bytes):
75 62 69 66 73 00 ff ff ubifs...
backtrace:
[<
ffffffff81b3fc4c>] slab_post_alloc_hook+0x9c/0x3c0
[<
ffffffff81b44bf3>] __kmalloc_track_caller+0x183/0x410
[<
ffffffff8198d3da>] kstrdup+0x3a/0x80
[<
ffffffff8198d486>] kstrdup_const+0x66/0x80
[<
ffffffff83989325>] kvasprintf_const+0x155/0x190
[<
ffffffff83bf55bb>] kobject_set_name_vargs+0x5b/0x150
[<
ffffffff83bf576b>] kobject_set_name+0xbb/0xf0
[<
ffffffff8100204c>] do_one_initcall+0x14c/0x5a0
[<
ffffffff8157e380>] do_init_module+0x1f0/0x660
[<
ffffffff815857be>] load_module+0x6d7e/0x7590
[<
ffffffff8158644f>] __do_sys_finit_module+0x19f/0x230
[<
ffffffff815866b3>] __x64_sys_finit_module+0x73/0xb0
[<
ffffffff88c98e85>] do_syscall_64+0x35/0x80
[<
ffffffff88e00087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
When kset_register() failed, we should call kset_put to cleanup it.
Fixes:
2e3cbf425804 ("ubifs: Export filesystem error counters")
Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Li Hua [Mon, 21 Nov 2022 11:18:47 +0000 (19:18 +0800)]
ubifs: Fix build errors as symbol undefined
With CONFIG_UBIFS_FS_AUTHENTICATION not set, the compiler can assume that
ubifs_node_check_hash() is never true and drops the call to ubifs_bad_hash().
Is CONFIG_CC_OPTIMIZE_FOR_SIZE enabled this optimization does not happen anymore.
So When CONFIG_UBIFS_FS and CONFIG_CC_OPTIMIZE_FOR_SIZE is enabled but
CONFIG_UBIFS_FS_AUTHENTICATION is not set, the build errors is as followd:
ERROR: modpost: "ubifs_bad_hash" [fs/ubifs/ubifs.ko] undefined!
Fix it by add no-op ubifs_bad_hash() for the CONFIG_UBIFS_FS_AUTHENTICATION=n case.
Fixes:
16a26b20d2af ("ubifs: authentication: Add hashes to index nodes")
Signed-off-by: Li Hua <hucool.lihua@huawei.com>
Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
George Kennedy [Tue, 15 Nov 2022 15:14:44 +0000 (10:14 -0500)]
ubi: ensure that VID header offset + VID header size <= alloc, size
Ensure that the VID header offset + VID header size does not exceed
the allocated area to avoid slab OOB.
BUG: KASAN: slab-out-of-bounds in crc32_body lib/crc32.c:111 [inline]
BUG: KASAN: slab-out-of-bounds in crc32_le_generic lib/crc32.c:179 [inline]
BUG: KASAN: slab-out-of-bounds in crc32_le_base+0x58c/0x626 lib/crc32.c:197
Read of size 4 at addr
ffff88802bb36f00 by task syz-executor136/1555
CPU: 2 PID: 1555 Comm: syz-executor136 Tainted: G W
6.0.0-1868 #1
Hardware name: Red Hat KVM, BIOS 1.13.0-2.module+el8.3.0+7860+
a7792d29
04/01/2014
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x85/0xad lib/dump_stack.c:106
print_address_description mm/kasan/report.c:317 [inline]
print_report.cold.13+0xb6/0x6bb mm/kasan/report.c:433
kasan_report+0xa7/0x11b mm/kasan/report.c:495
crc32_body lib/crc32.c:111 [inline]
crc32_le_generic lib/crc32.c:179 [inline]
crc32_le_base+0x58c/0x626 lib/crc32.c:197
ubi_io_write_vid_hdr+0x1b7/0x472 drivers/mtd/ubi/io.c:1067
create_vtbl+0x4d5/0x9c4 drivers/mtd/ubi/vtbl.c:317
create_empty_lvol drivers/mtd/ubi/vtbl.c:500 [inline]
ubi_read_volume_table+0x67b/0x288a drivers/mtd/ubi/vtbl.c:812
ubi_attach+0xf34/0x1603 drivers/mtd/ubi/attach.c:1601
ubi_attach_mtd_dev+0x6f3/0x185e drivers/mtd/ubi/build.c:965
ctrl_cdev_ioctl+0x2db/0x347 drivers/mtd/ubi/cdev.c:1043
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__x64_sys_ioctl+0x193/0x213 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3e/0x86 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0x0
RIP: 0033:0x7f96d5cf753d
Code:
RSP: 002b:
00007fffd72206f8 EFLAGS:
00000246 ORIG_RAX:
0000000000000010
RAX:
ffffffffffffffda RBX:
0000000000000000 RCX:
00007f96d5cf753d
RDX:
0000000020000080 RSI:
0000000040186f40 RDI:
0000000000000003
RBP:
0000000000400cd0 R08:
0000000000000000 R09:
0000000000000000
R10:
0000000000000000 R11:
0000000000000246 R12:
0000000000400be0
R13:
00007fffd72207e0 R14:
0000000000000000 R15:
0000000000000000
</TASK>
Allocated by task 1555:
kasan_save_stack+0x20/0x3d mm/kasan/common.c:38
kasan_set_track mm/kasan/common.c:45 [inline]
set_alloc_info mm/kasan/common.c:437 [inline]
____kasan_kmalloc mm/kasan/common.c:516 [inline]
__kasan_kmalloc+0x88/0xa3 mm/kasan/common.c:525
kasan_kmalloc include/linux/kasan.h:234 [inline]
__kmalloc+0x138/0x257 mm/slub.c:4429
kmalloc include/linux/slab.h:605 [inline]
ubi_alloc_vid_buf drivers/mtd/ubi/ubi.h:1093 [inline]
create_vtbl+0xcc/0x9c4 drivers/mtd/ubi/vtbl.c:295
create_empty_lvol drivers/mtd/ubi/vtbl.c:500 [inline]
ubi_read_volume_table+0x67b/0x288a drivers/mtd/ubi/vtbl.c:812
ubi_attach+0xf34/0x1603 drivers/mtd/ubi/attach.c:1601
ubi_attach_mtd_dev+0x6f3/0x185e drivers/mtd/ubi/build.c:965
ctrl_cdev_ioctl+0x2db/0x347 drivers/mtd/ubi/cdev.c:1043
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__x64_sys_ioctl+0x193/0x213 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3e/0x86 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0x0
The buggy address belongs to the object at
ffff88802bb36e00
which belongs to the cache kmalloc-256 of size 256
The buggy address is located 0 bytes to the right of
256-byte region [
ffff88802bb36e00,
ffff88802bb36f00)
The buggy address belongs to the physical page:
page:
00000000ea4d1263 refcount:1 mapcount:0 mapping:
0000000000000000
index:0x0 pfn:0x2bb36
head:
00000000ea4d1263 order:1 compound_mapcount:0 compound_pincount:0
flags: 0xfffffc0010200(slab|head|node=0|zone=1|lastcpupid=0x1fffff)
raw:
000fffffc0010200 ffffea000066c300 dead000000000003 ffff888100042b40
raw:
0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff88802bb36e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff88802bb36e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>
ffff88802bb36f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
^
ffff88802bb36f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88802bb37000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
Fixes:
801c135ce73d ("UBI: Unsorted Block Images")
Reported-by: syzkaller <syzkaller@googlegroups.com>
Signed-off-by: George Kennedy <george.kennedy@oracle.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Yifei Liu [Wed, 3 Aug 2022 15:53:12 +0000 (15:53 +0000)]
jffs2: correct logic when creating a hole in jffs2_write_begin
Bug description and fix:
1. Write data to a file, say all 1s from offset 0 to 16.
2. Truncate the file to a smaller size, say 8 bytes.
3. Write new bytes (say 2s) from an offset past the original size of the
file, say at offset 20, for 4 bytes. This is supposed to create a "hole"
in the file, meaning that the bytes from offset 8 (where it was truncated
above) up to the new write at offset 20, should all be 0s (zeros).
4. Flush all caches using "echo 3 > /proc/sys/vm/drop_caches" (or unmount
and remount) the f/s.
5. Check the content of the file. It is wrong. The 1s that used to be
between bytes 9 and 16, before the truncation, have REAPPEARED (they should
be 0s).
We wrote a script and helper C program to reproduce the bug
(reproduce_jffs2_write_begin_issue.sh, write_file.c, and Makefile). We can
make them available to anyone.
The above example is shown when writing a small file within the same first
page. But the bug happens for larger files, as long as steps 1, 2, and 3
above all happen within the same page.
The problem was traced to the jffs2_write_begin code, where it goes into an
'if' statement intended to handle writes past the current EOF (i.e., writes
that may create a hole). The code computes a 'pageofs' that is the floor
of the write position (pos), aligned to the page size boundary. In other
words, 'pageofs' will never be larger than 'pos'. The code then sets the
internal jffs2_raw_inode->isize to the size of max(current inode size,
pageofs) but that is wrong: the new file size should be the 'pos', which is
larger than both the current inode size and pageofs.
Similarly, the code incorrectly sets the internal jffs2_raw_inode->dsize to
the difference between the pageofs minus current inode size; instead it
should be the current pos minus the current inode size. Finally,
inode->i_size was also set incorrectly.
The patch below fixes this bug. The bug was discovered using a new tool
for finding f/s bugs using model checking, called MCFS (Model Checking File
Systems).
Signed-off-by: Yifei Liu <yifeliu@cs.stonybrook.edu>
Signed-off-by: Erez Zadok <ezk@cs.stonybrook.edu>
Signed-off-by: Manish Adkar <madkar@cs.stonybrook.edu>
Signed-off-by: Richard Weinberger <richard@nod.at>
Linus Torvalds [Sun, 22 Jan 2023 00:27:01 +0000 (16:27 -0800)]
Linux 6.2-rc5
Linus Torvalds [Sun, 22 Jan 2023 00:21:56 +0000 (16:21 -0800)]
Merge tag 'io_uring-6.2-2023-01-21' of git://git.kernel.dk/linux
Pull another io_uring fix from Jens Axboe:
"Just a single fix for a regression that happened in this release due
to a poll change. Normally I would've just deferred it to next week,
but since the original fix got picked up by stable, I think it's
better to just send this one off separately.
The issue is around the poll race fix, and how it mistakenly also got
applied to multishot polling. Those don't need the race fix, and we
should not be doing any reissues for that case. Exhaustive test cases
were written and committed to the liburing regression suite for the
reported issue, and additions for similar issues"
* tag 'io_uring-6.2-2023-01-21' of git://git.kernel.dk/linux:
io_uring/poll: don't reissue in case of poll race on multishot request
Linus Torvalds [Sat, 21 Jan 2023 19:20:55 +0000 (11:20 -0800)]
Merge tag 'char-misc-6.2-rc5' of git://git./linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small char/misc and other subsystem driver fixes for
6.2-rc5 to resolve a few reported issues. They include:
- long time pending fastrpc fixes (should have gone into 6.1, my
fault)
- mei driver/bus fixes and new device ids
- interconnect driver fixes for reported problems
- vmci bugfix
- w1 driver bugfixes for reported problems
Almost all of these have been in linux-next with no reported problems,
the rest have all passed 0-day bot testing in my tree and on the
mailing lists where they have sat too long due to me taking a long
time to catch up on my pending patch queue"
* tag 'char-misc-6.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
VMCI: Use threaded irqs instead of tasklets
misc: fastrpc: Pass bitfield into qcom_scm_assign_mem
gsmi: fix null-deref in gsmi_get_variable
misc: fastrpc: Fix use-after-free race condition for maps
misc: fastrpc: Don't remove map on creater_process and device_release
misc: fastrpc: Fix use-after-free and race in fastrpc_map_find
misc: fastrpc: fix error code in fastrpc_req_mmap()
mei: me: add meteor lake point M DID
mei: bus: fix unlink on bus in error path
w1: fix WARNING after calling w1_process()
w1: fix deadloop in __w1_remove_master_device()
comedi: adv_pci1760: Fix PWM instruction handling
interconnect: qcom: rpm: Use _optional func for provider clocks
interconnect: qcom: msm8996: Fix regmap max_register values
interconnect: qcom: msm8996: Provide UFS clocks to A2NoC
dt-bindings: interconnect: Add UFS clocks to MSM8996 A2NoC
Linus Torvalds [Sat, 21 Jan 2023 19:17:23 +0000 (11:17 -0800)]
Merge tag 'driver-core-6.2-rc5' of git://git./linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
"Here are three small driver and kernel core fixes for 6.2-rc5. They
include:
- potential gadget fixup in do_prlimit
- device property refcount leak fix
- test_async_probe bugfix for reported problem"
* tag 'driver-core-6.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
prlimit: do_prlimit needs to have a speculation check
driver core: Fix test_async_probe_init saves device in wrong array
device property: fix of node refcount leak in fwnode_graph_get_next_endpoint()
Linus Torvalds [Sat, 21 Jan 2023 19:15:21 +0000 (11:15 -0800)]
Merge tag 'staging-6.2-rc5' of git://git./linux/kernel/git/gregkh/staging
Pull staging driver fix from Greg KH:
"Here is a single staging driver fix for 6.2-rc5. It resolves a build
issue reported and Fixed by Arnd in the vc04_services driver. It's
been in linux-next this week with no reported problems"
* tag 'staging-6.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: vchiq_arm: fix enum vchiq_status return types
Linus Torvalds [Sat, 21 Jan 2023 19:12:42 +0000 (11:12 -0800)]
Merge tag 'tty-6.2-rc5' of git://git./linux/kernel/git/gregkh/tty
Pull tty/serial driver fixes from Greg KH:
"Here are some small tty and serial driver fixes for 6.2-rc5 that
resolve a number of tiny reported issues and some new device ids. They
include:
- new device id for the exar serial driver
- speakup tty driver bugfix
- atmel serial driver baudrate fixup
- stm32 serial driver bugfix and then revert as the bugfix broke the
build. That will come back in a later pull request once it is all
worked out properly.
- amba-pl011 serial driver rs486 mode bugfix
- qcom_geni serial driver bugfix
Most of these have been in linux-next with no reported problems (well,
other than the build breakage which generated the revert), the new
device id passed 0-day testing"
* tag 'tty-6.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: exar: Add support for Sealevel 7xxxC serial cards
Revert "serial: stm32: Merge hard IRQ and threaded IRQ handling into single IRQ handler"
tty: serial: qcom_geni: avoid duplicate struct member init
serial: atmel: fix incorrect baudrate setup
tty: fix possible null-ptr-defer in spk_ttyio_release
serial: stm32: Merge hard IRQ and threaded IRQ handling into single IRQ handler
serial: amba-pl011: fix high priority character transmission in rs486 mode
serial: pch_uart: Pass correct sg to dma_unmap_sg()
tty: serial: qcom-geni-serial: fix slab-out-of-bounds on RX FIFO buffer
Linus Torvalds [Sat, 21 Jan 2023 19:10:03 +0000 (11:10 -0800)]
Merge tag 'usb-6.2-rc5' of git://git./linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt fixes from Greg KH:
"Here are a number of small USB and Thunderbolt driver fixes and new
device id changes for 6.2-rc5. Included in here are:
- thunderbolt bugfixes for reported problems
- new usb-serial driver ids added
- onboard_hub usb driver fixes for much-reported problems
- xhci bugfixes
- typec bugfixes
- ehci-fsl driver module alias fix
- iowarrior header size fix
- usb gadget driver fixes
All of these, except for the iowarrior fix, have been in linux-next
with no reported issues. The iowarrior fix passed the 0-day testing
and is a one digit change based on a reported problem in the driver
(which was written to a spec, not the real device that is now
available)"
* tag 'usb-6.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (40 commits)
USB: misc: iowarrior: fix up header size for USB_DEVICE_ID_CODEMERCS_IOW100
usb: host: ehci-fsl: Fix module alias
usb: dwc3: fix extcon dependency
usb: core: hub: disable autosuspend for TI TUSB8041
USB: fix misleading usb_set_intfdata() kernel doc
usb: gadget: f_ncm: fix potential NULL ptr deref in ncm_bitrate()
USB: gadget: Add ID numbers to configfs-gadget driver names
usb: typec: tcpm: Fix altmode re-registration causes sysfs create fail
usb: gadget: g_webcam: Send color matching descriptor per frame
usb: typec: altmodes/displayport: Use proper macro for pin assignment check
usb: typec: altmodes/displayport: Fix pin assignment calculation
usb: typec: altmodes/displayport: Add pin assignment helper
usb: gadget: f_fs: Ensure ep0req is dequeued before free_request
usb: gadget: f_fs: Prevent race during ffs_ep0_queue_wait
usb: misc: onboard_hub: Move 'attach' work to the driver
usb: misc: onboard_hub: Invert driver registration order
usb: ucsi: Ensure connector delayed work items are flushed
usb: musb: fix error return code in omap2430_probe()
usb: chipidea: core: fix possible constant 0 if use IS_ERR(ci->role_switch)
xhci: Detect lpm incapable xHC USB3 roothub ports from ACPI tables
...
Linus Torvalds [Sat, 21 Jan 2023 18:56:37 +0000 (10:56 -0800)]
Merge tag 'kbuild-fixes-v6.2-3' of git://git./linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- Hide LDFLAGS_vmlinux from decompressor Makefiles to fix error
messages when GNU Make 4.4 is used.
- Fix 'make modules' build error when CONFIG_DEBUG_INFO_BTF_MODULES=y.
- Fix warnings emitted by GNU Make 4.4 in scripts/kconfig/Makefile.
- Support GNU Make 4.4 for scripts/jobserver-exec.
- Show clearer error message when kernel/gen_kheaders.sh fails due to
missing cpio.
* tag 'kbuild-fixes-v6.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kheaders: explicitly validate existence of cpio command
scripts: support GNU make 4.4 in jobserver-exec
kconfig: Update all declared targets
scripts: rpm: make clear that mkspec script contains 4.13 feature
init/Kconfig: fix LOCALVERSION_AUTO help text
kbuild: fix 'make modules' error when CONFIG_DEBUG_INFO_BTF_MODULES=y
kbuild: export top-level LDFLAGS_vmlinux only to scripts/Makefile.vmlinux
init/version-timestamp.c: remove unneeded #include <linux/version.h>
docs: kbuild: remove mention to dropped $(objtree) feature
Linus Torvalds [Wed, 18 Jan 2023 04:27:23 +0000 (20:27 -0800)]
ext4: deal with legacy signed xattr name hash values
We potentially have old hashes of the xattr names generated on systems
with signed 'char' types. Now that everybody uses '-funsigned-char',
those hashes will no longer match.
This only happens if you use xattrs names that have the high bit set,
which probably doesn't happen in practice, but the xfstest generic/454
shows it.
Instead of adding a new "signed xattr hash filesystem" bit and having to
deal with all the possible combinations, just calculate the hash both
ways if the first one fails, and always generate new hashes with the
proper unsigned char version.
Reported-by: kernel test robot <oliver.sang@intel.com>
Link: https://lore.kernel.org/oe-lkp/202212291509.704a11c9-oliver.sang@intel.com
Link: https://lore.kernel.org/all/CAHk-=whUNjwqZXa-MH9KMmc_CpQpoFKFjAB9ZKHuu=TbsouT4A@mail.gmail.com/
Exposed-by: 3bc753c06dd0 ("kbuild: treat char as always unsigned")
Cc: Eric Biggers <ebiggers@kernel.org>
Cc: Andreas Dilger <adilger@dilger.ca>
Cc: Theodore Ts'o <tytso@mit.edu>,
Cc: Jason Donenfeld <Jason@zx2c4.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Greg Kroah-Hartman [Fri, 20 Jan 2023 10:03:20 +0000 (11:03 +0100)]
prlimit: do_prlimit needs to have a speculation check
do_prlimit() adds the user-controlled resource value to a pointer that
will subsequently be dereferenced. In order to help prevent this
codepath from being used as a spectre "gadget" a barrier needs to be
added after checking the range.
Reported-by: Jordy Zomer <jordyzomer@google.com>
Tested-by: Jordy Zomer <jordyzomer@google.com>
Suggested-by: Linus Torvalds <torvalds@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linus Torvalds [Sat, 21 Jan 2023 01:13:55 +0000 (17:13 -0800)]
Merge tag 'gpio-fixes-for-v6.2-rc5' of git://git./linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- fix a potential race condition and always set GPIOs used as interrupt
source to input in gpio-mxc
- fix a GPIO ACPI-related issue with system suspend on Clevo NL5xRU
* tag 'gpio-fixes-for-v6.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpiolib: acpi: Add a ignore wakeup quirk for Clevo NL5xRU
gpiolib: acpi: Allow ignoring wake capability on pins that aren't in _AEI
gpio: mxc: Always set GPIOs used as interrupt source to INPUT mode
gpio: mxc: Protect GPIO irqchip RMW with bgpio spinlock
Linus Torvalds [Fri, 20 Jan 2023 22:28:49 +0000 (14:28 -0800)]
Merge tag '6.2-rc4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
- important fix for packet signature calculation error
- three fixes to correct DFS deadlock, and DFS refresh problem
- remove an unused DFS function, and duplicate tcon refresh code
- DFS cache lookup fix
- uninitialized rc fix
* tag '6.2-rc4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: remove unused function
cifs: do not include page data when checking signature
cifs: fix return of uninitialized rc in dfs_cache_update_tgthint()
cifs: handle cache lookup errors different than -ENOENT
cifs: remove duplicate code in __refresh_tcon()
cifs: don't take exclusive lock for updating target hints
cifs: avoid re-lookups in dfs_cache_find()
cifs: fix potential deadlock in cache_refresh_path()
Linus Torvalds [Fri, 20 Jan 2023 22:22:56 +0000 (14:22 -0800)]
Merge tag 'pinctrl-v6.2-2' of git://git./linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
- Compilation fix for Sunplus sp7021
- Add some missing headers after a cleanup to the Nomadik driver
- Fix pull type and mux routes on Rockchip RK3568
* tag 'pinctrl-v6.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: rockchip: fix mux route data for rk3568
pinctrl: rockchip: fix reading pull type on rk3568
pinctrl: nomadik: Add missing header(s)
pinctrl: sp7021: fix unused function warning
Linus Torvalds [Fri, 20 Jan 2023 22:15:51 +0000 (14:15 -0800)]
Merge tag 'for-linus' of git://git./linux/kernel/git/rdma/rdma
Pull rdma fixes from Jason Gunthorpe:
- Several hfi1 patches fixing some long standing driver bugs
- Overflow when working with sg lists with elements greater than 4G
- An rxe regression with object numbering after the mrs reach their
limit
- A theoretical problem with the scatterlist merging code
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
lib/scatterlist: Fix to calculate the last_pg properly
IB/hfi1: Remove user expected buffer invalidate race
IB/hfi1: Immediately remove invalid memory from hardware
IB/hfi1: Fix expected receive setup error exit issues
IB/hfi1: Reserve user expected TIDs
IB/hfi1: Reject a zero-length user expected buffer
RDMA/core: Fix ib block iterator counter overflow
RDMA/rxe: Prevent faulty rkey generation
RDMA/rxe: Fix inaccurate constants in rxe_type_info
Jens Axboe [Fri, 20 Jan 2023 22:08:21 +0000 (15:08 -0700)]
io_uring/poll: don't reissue in case of poll race on multishot request
A previous commit fixed a poll race that can occur, but it's only
applicable for multishot requests. For a multishot request, we can safely
ignore a spurious wakeup, as we never leave the waitqueue to begin with.
A blunt reissue of a multishot armed request can cause us to leak a
buffer, if they are ring provided. While this seems like a bug in itself,
it's not really defined behavior to reissue a multishot request directly.
It's less efficient to do so as well, and not required to rearm anything
like it is for singleshot poll requests.
Cc: stable@vger.kernel.org
Fixes:
6e5aedb9324a ("io_uring/poll: attempt request issue after racy poll wakeup")
Reported-and-tested-by: Olivier Langlois <olivier@trillion01.com>
Link: https://github.com/axboe/liburing/issues/778
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Linus Torvalds [Fri, 20 Jan 2023 20:44:41 +0000 (12:44 -0800)]
Merge tag 'block-6.2-2023-01-20' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
"Various little tweaks all over the place:
- NVMe pull request via Christoph:
- fix controller shutdown regression in nvme-apple (Janne Grunau)
- fix a polling on timeout regression in nvme-pci (Keith Busch)
- Fix a bug in the read request side request allocation caching
(Pavel)
- pktcdvd was brought back after we configured a NULL return on bio
splits, make it consistent with the others (me)
- BFQ refcount fix (Yu)
- Block cgroup policy activation fix (Yu)
- Fix for an md regression introduced in the 6.2 cycle (Adrian)"
* tag 'block-6.2-2023-01-20' of git://git.kernel.dk/linux:
nvme-pci: fix timeout request state check
nvme-apple: only reset the controller when RTKit is running
nvme-apple: reset controller during shutdown
block: fix hctx checks for batch allocation
block/rnbd-clt: fix wrong max ID in ida_alloc_max
blk-cgroup: fix missing pd_online_fn() while activating policy
pktcdvd: check for NULL returna fter calling bio_split_to_limits()
block, bfq: switch 'bfqg->ref' to use atomic refcount apis
md: fix incorrect declaration about claim_rdev in md_import_device
Linus Torvalds [Fri, 20 Jan 2023 20:39:45 +0000 (12:39 -0800)]
Merge tag 'io_uring-6.2-2023-01-20' of git://git.kernel.dk/linux
Pull io_uring fixes from Jens Axboe:
"Fixes for the MSG_RING opcode. Nothing really major:
- Fix an overflow missing serialization around posting CQEs to the
target ring (me)
- Disable MSG_RING on a ring that isn't enabled yet. There's nothing
really wrong with allowing it, but 1) it's somewhat odd as nobody
can receive them yet, and 2) it means that using the right delivery
mechanism might change. As nobody should be sending CQEs to a ring
that isn't enabled yet, let's just disable it (Pavel)
- Tweak to when we decide to post remotely or not for MSG_RING
(Pavel)"
* tag 'io_uring-6.2-2023-01-20' of git://git.kernel.dk/linux:
io_uring/msg_ring: fix remote queue to disabled ring
io_uring/msg_ring: fix flagging remote execution
io_uring/msg_ring: fix missing lock on overflow for IOPOLL
io_uring/msg_ring: move double lock/unlock helpers higher up
Linus Torvalds [Fri, 20 Jan 2023 19:59:01 +0000 (11:59 -0800)]
Merge tag 'for-6.2-rc4-tag' of git://git./linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
- fix potential out-of-bounds access to leaf data when seeking in an
inline file
- fix potential crash in quota when rescan races with disable
- reimplement super block signature scratching by marking page/folio
dirty and syncing block device, allow removing write_one_page
* tag 'for-6.2-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fix race between quota rescan and disable leading to NULL pointer deref
btrfs: fix invalid leaf access due to inline extent during lseek
btrfs: stop using write_one_page in btrfs_scratch_superblock
btrfs: factor out scratching of one regular super block
Linus Torvalds [Fri, 20 Jan 2023 19:35:21 +0000 (11:35 -0800)]
Merge tag 'linux-kselftest-fixes-6.2-rc5' of git://git./linux/kernel/git/shuah/linux-kselftest
Pull Kselftest fix from Shuah Khan:
"Fix an error seen during unconfigured LLVM builds"
* tag 'linux-kselftest-fixes-6.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kselftest: Fix error message for unconfigured LLVM builds
Linus Torvalds [Fri, 20 Jan 2023 19:14:41 +0000 (11:14 -0800)]
Merge tag 'thermal-6.2-rc5' of git://git./linux/kernel/git/rafael/linux-pm
Pull thermal control fix from Rafael Wysocki:
"Modify __thermal_cooling_device_register() to make it call
put_device() after invoking device_register() and fix up a few error
paths calling thermal_cooling_device_destroy_sysfs() unnecessarily
(Viresh Kumar)"
* tag 'thermal-6.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: core: call put_device() only after device_register() fails
Linus Torvalds [Fri, 20 Jan 2023 19:11:35 +0000 (11:11 -0800)]
Merge tag 'acpi-6.2-rc5' of git://git./linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These update the ACPICA entry in MAINTAINERS, add a backlight handling
quirk and fix the ACPI PRM (platform runtime) mechanism support.
Specifics:
- Update the ACPICA development list address in MAINTAINERS to the
new one that does not bounce (Rafael Wysocki)
- Check whether EFI runtime is available when registering the ACPI
PRM address space handler and when running it (Ard Biesheuvel)
- Add backlight=native DMI quirk for Acer Aspire 4810T to the ACPI
video driver (Hans de Goede)"
* tag 'acpi-6.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: PRM: Check whether EFI runtime is available
ACPI: video: Add backlight=native DMI quirk for Acer Aspire 4810T
MAINTAINERS: Update the ACPICA development list address
Linus Torvalds [Fri, 20 Jan 2023 19:04:59 +0000 (11:04 -0800)]
Merge tag 'mmc-v6.2-rc2' of git://git./linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
- sunxi-mmc: Fix clock refcount imbalance during unbind
- sdhci-esdhc-imx: Fix some tuning settings
* tag 'mmc-v6.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: sunxi-mmc: Fix clock refcount imbalance during unbind
mmc: sdhci-esdhc-imx: correct the tuning start tap and step setting
Linus Torvalds [Fri, 20 Jan 2023 19:00:03 +0000 (11:00 -0800)]
Merge tag 'soc-fixes-6.2' of git://git./linux/kernel/git/soc/soc
Pull ARM SoC DT and driver fixes from Arnd Bergmann:
"Lots of dts fixes for Qualcomm Snapdragon and NXP i.MX platforms,
including:
- A regression fix for SDHCI controllers on Inforce 6540, and another
SDHCI fix on SM8350
- Reenable cluster idle on sm8250 after the the code fix is upstream
- multiple fixes for the QMP PHY binding, needing an incompatible dt
change
- The reserved memory map is updated on Xiaomi Mi 4C and Huawei Nexus
6P, to avoid instabilities caused by use of protected memory
regions
- Fix i.MX8MP DT for missing GPC Interrupt, power-domain typo and USB
clock error
- A couple of verdin-imx8mm DT fixes for audio playback support
- Fix pca9547 i2c-mux node name for i.MX and Vybrid device trees
- Fix an imx93-11x11-evk uSDHC pad setting problem that causes Micron
eMMC CMD8 CRC error in HS400ES/HS400 mode
The remaining ARM and RISC-V platforms only have very few smaller dts
bugfixes this time:
- A fix for the SiFive unmatched board's PCI memory space
- A revert to fix a regression with GPIO on Marvell Armada
- A fix for the UART address on Marvell AC5
- Missing chip-select phandles for stm32 boards
- Selecting the correct clock for the sam9x60 memory controller
- Amlogic based Odroid-HC4 needs a revert to restore USB
functionality.
And finally, there are some minor code fixes:
- Build fixes for OMAP1, pxa, riscpc, raspberry pi firmware, and zynq
firmware
- memory controller driver fixes for an OMAP regression and older
bugs on tegra, atmel and mvebu
- reset controller fixes for ti-sci and uniphier platforms
- ARM SCMI firmware fixes for a couple of rare corner cases
- Qualcomm platform driver fixes for incorrect error handling and a
backwards compatibility fix for the apr driver using older dtb
- NXP i.MX SoC driver fixes for HDMI output, error handling in the
imx8 soc-id and missing reference counting on older cpuid code"
* tag 'soc-fixes-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (60 commits)
firmware: zynqmp: fix declarations for gcc-13
ARM: dts: stm32: Fix qspi pinctrl phandle for stm32mp151a-prtt1l
ARM: dts: stm32: Fix qspi pinctrl phandle for stm32mp157c-emstamp-argon
ARM: dts: stm32: Fix qspi pinctrl phandle for stm32mp15xx-dhcom-som
ARM: dts: stm32: Fix qspi pinctrl phandle for stm32mp15xx-dhcor-som
ARM: dts: at91: sam9x60: fix the ddr clock for sam9x60
ARM: omap1: fix building gpio15xx
ARM: omap1: fix !ARCH_OMAP1_ANY link failures
firmware: raspberrypi: Fix type assignment
arm64: dts: qcom: msm8992-libra: Fix the memory map
arm64: dts: qcom: msm8992: Don't use sfpb mutex
PM: AVS: qcom-cpr: Fix an error handling path in cpr_probe()
arm64: dts: msm8994-angler: fix the memory map
arm64: dts: marvell: AC5/AC5X: Fix address for UART1
ARM: footbridge: drop unnecessary inclusion
Revert "ARM: dts: armada-39x: Fix compatible string for gpios"
Revert "ARM: dts: armada-38x: Fix compatible string for gpios"
ARM: pxa: enable PXA310/PXA320 for DT-only build
riscv: dts: sifive: fu740: fix size of pcie 32bit memory
soc: qcom: apr: Make qcom,protection-domain optional again
...
Linus Torvalds [Fri, 20 Jan 2023 18:43:07 +0000 (10:43 -0800)]
Merge tag 'drm-fixes-2023-01-20' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Just a pretty regular week for this stage of things, amdgpu and i915,
along with some msm and misc others.
fb-helper:
- switcheroo fix
msm:
- kexec shutdown fix
- fix potential double free
i915:
- Reject display plane with height == 0
- re-disable RC6p on Sandy Bridge
- Fix hugepages' selftest
- DG2 hw workarounds
- switcheroo fix
vc4:
- fix a memory leak
panfrost:
- Kconfig fix
amdgpu:
- Fix display scaling
- Fix RN/CZN power reporting on some firmware versions
- Colorspace fixes
- Fix resource freeing in error case in CS IOCTL
- Fix warning on driver unload
- GC11 fixes
- DCN 3.1.4/5 S/G display workarounds"
* tag 'drm-fixes-2023-01-20' of git://anongit.freedesktop.org/drm/drm: (24 commits)
drm/amd/display: disable S/G display on DCN 3.1.4
drm/amd/display: disable S/G display on DCN 3.1.5
drm/amdgpu: allow multipipe policy on ASICs with one MEC
drm/amdgpu: correct MEC number for gfx11 APUs
drm/amd/display: fix issues with driver unload
drm/amdgpu: fix amdgpu_job_free_resources v2
drm/amd/display: Fix COLOR_SPACE_YCBCR2020_TYPE matrix
drm/amd/display: Calculate output_color_space after pixel encoding adjustment
drm/amdgpu: fix cleaning up reserved VMID on release
drm/amdgpu: Correct the power calcultion for Renior/Cezanne.
drm/amd/display: Fix set scaling doesn's work
drm/i915: Remove unused variable
drm/i915/dg2: Introduce Wa_18019271663
drm/i915/dg2: Introduce Wa_18018764978
drm/fb-helper: Set framebuffer for vga-switcheroo clients
drm/i915: Allow switching away via vga-switcheroo if uninitialized
drm/i915/selftests: Unwind hugepages to drop wakeref on error
drm/i915: re-disable RC6p on Sandy Bridge
drm/panfrost: fix GENERIC_ATOMIC64 dependency
drm/i915/display: Check source height is > 0
...
Linus Torvalds [Fri, 20 Jan 2023 18:23:14 +0000 (10:23 -0800)]
Merge tag 'dmaengine-fix-6.2' of git://git./linux/kernel/git/vkoul/dmaengine
Pull dmaengine fixes from Vinod Koul:
- email address Update for Jie Hai
- fix double increment of client_count in dma_chan_get()
- idxd driver fixes: use after free, probe error handling and callback
on wq disable
- fix for qcom gpi driver GO tre
- ptdma locking fix
- tegra & imx-sdma mem leak fix
* tag 'dmaengine-fix-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine:
ptdma: pt_core_execute_cmd() should use spinlock
dmaengine: tegra: Fix memory leak in terminate_all()
dmaengine: xilinx_dma: call of_node_put() when breaking out of for_each_child_of_node()
dmaengine: imx-sdma: Fix a possible memory leak in sdma_transfer_init
dmaengine: Fix double increment of client_count in dma_chan_get()
dmaengine: tegra210-adma: fix global intr clear
Add exception protection processing for vd in axi_chan_handle_err function
dmaengine: lgm: Move DT parsing after initialization
MAINTAINERS: update Jie Hai's email address
dmaengine: ti: k3-udma: Do conditional decrement of UDMA_CHAN_RT_PEER_BCNT_REG
dmaengine: idxd: Do not call DMX TX callbacks during workqueue disable
dmaengine: idxd: Prevent use after free on completion memory
dmaengine: idxd: Let probe fail when workqueue cannot be enabled
dmaengine: qcom: gpi: Set link_rx bit on GO TRE for rx operation
Linus Torvalds [Fri, 20 Jan 2023 18:10:52 +0000 (10:10 -0800)]
Merge tag 'phy-fixes-6.2' of git://git./linux/kernel/git/phy/linux-phy
Pull phy fixes from Vinod Koul:
- binding fix for g12a phys
- Kconfig operator precedence for TI driver
- renesas: register setting
- sunplus: null deref fix
- rockchip-inno fix for clk_disable_unprepare()
- MDM9607 init sequence revert due to regression
* tag 'phy-fixes-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy:
phy: phy-can-transceiver: Skip warning if no "max-bitrate"
dt-bindings: phy: g12a-usb2-phy: fix compatible string documentation
dt-bindings: phy: g12a-usb3-pcie-phy: fix compatible string documentation
phy: freescale: imx8m-pcie: Add one missing error return
phy: Revert "phy: qualcomm: usb28nm: Add MDM9607 init sequence"
phy: rockchip-inno-usb2: Fix missing clk_disable_unprepare() in rockchip_usb2phy_power_on()
phy: renesas: r8a779f0-eth-serdes: Fix register setting
phy: usb: sunplus: Fix potential null-ptr-deref in sp_usb_phy_probe()
phy: ti: fix Kconfig warning and operator precedence
Linus Torvalds [Fri, 20 Jan 2023 17:58:44 +0000 (09:58 -0800)]
Merge tag 'net-6.2-rc5-2' of git://git./linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from wireless, bluetooth, bpf and netfilter.
Current release - regressions:
- Revert "net: team: use IFF_NO_ADDRCONF flag to prevent ipv6
addrconf", fix nsna_ping mode of team
- wifi: mt76: fix bugs in Rx queue handling and DMA mapping
- eth: mlx5:
- add missing mutex_unlock in error reporter
- protect global IPsec ASO with a lock
Current release - new code bugs:
- rxrpc: fix wrong error return in rxrpc_connect_call()
Previous releases - regressions:
- bluetooth: hci_sync: fix use of HCI_OP_LE_READ_BUFFER_SIZE_V2
- wifi:
- mac80211: fix crashes on Rx due to incorrect initialization of
rx->link and rx->link_sta
- mac80211: fix bugs in iTXQ conversion - Tx stalls, incorrect
aggregation handling, crashes
- brcmfmac: fix regression for Broadcom PCIe wifi devices
- rndis_wlan: prevent buffer overflow in rndis_query_oid
- netfilter: conntrack: handle tcp challenge acks during connection
reuse
- sched: avoid grafting on htb_destroy_class_offload when destroying
- virtio-net: correctly enable callback during start_xmit, fix stalls
- tcp: avoid the lookup process failing to get sk in ehash table
- ipa: disable ipa interrupt during suspend
- eth: stmmac: enable all safety features by default
Previous releases - always broken:
- bpf:
- fix pointer-leak due to insufficient speculative store bypass
mitigation (Spectre v4)
- skip task with pid=1 in send_signal_common() to avoid a splat
- fix BPF program ID information in BPF_AUDIT_UNLOAD as well as
PERF_BPF_EVENT_PROG_UNLOAD events
- fix potential deadlock in htab_lock_bucket from same bucket
index but different map_locked index
- bluetooth:
- fix a buffer overflow in mgmt_mesh_add()
- hci_qca: fix driver shutdown on closed serdev
- ISO: fix possible circular locking dependency
- CIS: hci_event: fix invalid wait context
- wifi: brcmfmac: fixes for survey dump handling
- mptcp: explicitly specify sock family at subflow creation time
- netfilter: nft_payload: incorrect arithmetics when fetching VLAN
header bits
- tcp: fix rate_app_limited to default to 1
- l2tp: close all race conditions in l2tp_tunnel_register()
- eth: mlx5: fixes for QoS config and eswitch configuration
- eth: enetc: avoid deadlock in enetc_tx_onestep_tstamp()
- eth: stmmac: fix invalid call to mdiobus_get_phy()
Misc:
- ethtool: add netlink attr in rss get reply only if the value is not
empty"
* tag 'net-6.2-rc5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (88 commits)
Revert "Merge branch 'octeontx2-af-CPT'"
tcp: fix rate_app_limited to default to 1
bnxt: Do not read past the end of test names
net: stmmac: enable all safety features by default
octeontx2-af: add mbox to return CPT_AF_FLT_INT info
octeontx2-af: update cpt lf alloc mailbox
octeontx2-af: restore rxc conf after teardown sequence
octeontx2-af: optimize cpt pf identification
octeontx2-af: modify FLR sequence for CPT
octeontx2-af: add mbox for CPT LF reset
octeontx2-af: recover CPT engine when it gets fault
net: dsa: microchip: ksz9477: port map correction in ALU table entry register
selftests/net: toeplitz: fix race on tpacket_v3 block close
net/ulp: use consistent error code when blocking ULP
octeontx2-pf: Fix the use of GFP_KERNEL in atomic context on rt
tcp: avoid the lookup process failing to get sk in ehash table
Revert "net: team: use IFF_NO_ADDRCONF flag to prevent ipv6 addrconf"
MAINTAINERS: add networking entries for Willem
net: sched: gred: prevent races when adding offloads to stats
l2tp: prevent lockdep issue in l2tp_tunnel_register()
...
Rafael J. Wysocki [Fri, 20 Jan 2023 17:42:16 +0000 (18:42 +0100)]
Merge branches 'acpi-prm' and 'acpi-video'
Merge an ACPI PRM (platform runtime) support fix and an ACPI backlight
quirk for 6.2-rc5:
- Check whether EFI runtime is available when registering the ACPI PRM
address space handler and when running it (Ard Biesheuvel).
- Add backlight=native DMI quirk for Acer Aspire 4810T to the ACPI
video driver (Hans de Goede).
* acpi-prm:
ACPI: PRM: Check whether EFI runtime is available
* acpi-video:
ACPI: video: Add backlight=native DMI quirk for Acer Aspire 4810T
Pavel Begunkov [Fri, 20 Jan 2023 16:38:06 +0000 (16:38 +0000)]
io_uring/msg_ring: fix remote queue to disabled ring
IORING_SETUP_R_DISABLED rings don't have the submitter task set, so
it's not always safe to use ->submitter_task. Disallow posting msg_ring
messaged to disabled rings. Also add task NULL check for loosy sync
around testing for IORING_SETUP_R_DISABLED.
Cc: stable@vger.kernel.org
Fixes:
6d043ee1164ca ("io_uring: do msg_ring in target task via tw")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Pavel Begunkov [Fri, 20 Jan 2023 16:38:05 +0000 (16:38 +0000)]
io_uring/msg_ring: fix flagging remote execution
There is a couple of problems with queueing a tw in io_msg_ring_data()
for remote execution. First, once we queue it the target ring can
go away and so setting IORING_SQ_TASKRUN there is not safe. Secondly,
the userspace might not expect IORING_SQ_TASKRUN.
Extract a helper and uniformly use TWA_SIGNAL without TWA_SIGNAL_NO_IPI
tricks for now, just as it was done in the original patch.
Cc: stable@vger.kernel.org
Fixes:
6d043ee1164ca ("io_uring: do msg_ring in target task via tw")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Jakub Kicinski [Fri, 20 Jan 2023 16:38:16 +0000 (08:38 -0800)]
Revert "Merge branch 'octeontx2-af-CPT'"
This reverts commit
b4fbf0b27fa9dd2594b3371532341bd4636a00f9, reversing
changes made to
6c977c5c2e4c5d8ad1b604724cc344e38f96fe9b.
This seems like net-next material.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Jens Axboe [Fri, 20 Jan 2023 15:08:29 +0000 (08:08 -0700)]
Merge tag 'nvme-6.2-2023-01-20' of git://git.infradead.org/nvme into block-6.2
Pull NVMe fixes from Christoph:
"nvme fixes for Linux 6.2
- fix controller shutdown regression in nvme-apple (Janne Grunau)
- fix a polling on timeout regression in nvme-pci (Keith Busch)"
* tag 'nvme-6.2-2023-01-20' of git://git.infradead.org/nvme:
nvme-pci: fix timeout request state check
nvme-apple: only reset the controller when RTKit is running
nvme-apple: reset controller during shutdown
Greg Kroah-Hartman [Fri, 20 Jan 2023 13:53:30 +0000 (14:53 +0100)]
USB: misc: iowarrior: fix up header size for USB_DEVICE_ID_CODEMERCS_IOW100
The USB_DEVICE_ID_CODEMERCS_IOW100 header size was incorrect, it should
be 12, not 13.
Cc: stable <stable@kernel.org>
Fixes:
17a82716587e ("USB: iowarrior: fix up report size handling for some devices")
Reported-by: Christoph Jung <jung@codemercs.com>
Link: https://lore.kernel.org/r/20230120135330.3842518-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alexander Stein [Fri, 20 Jan 2023 12:27:14 +0000 (13:27 +0100)]
usb: host: ehci-fsl: Fix module alias
Commit
ca07e1c1e4a6 ("drivers:usb:fsl:Make fsl ehci drv an independent
driver module") changed DRV_NAME which was used for MODULE_ALIAS as well.
Starting from this the module alias didn't match the platform device
name created in fsl-mph-dr-of.c
Change DRV_NAME to match the driver name for host mode in fsl-mph-dr-of.
This is needed for module autoloading on ls1021a.
Fixes:
ca07e1c1e4a6 ("drivers:usb:fsl:Make fsl ehci drv an independent driver module")
Cc: stable <stable@kernel.org>
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Link: https://lore.kernel.org/r/20230120122714.3848784-1-alexander.stein@ew.tq-group.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Morley [Thu, 19 Jan 2023 19:00:28 +0000 (19:00 +0000)]
tcp: fix rate_app_limited to default to 1
The initial default value of 0 for tp->rate_app_limited was incorrect,
since a flow is indeed application-limited until it first sends
data. Fixing the default to be 1 is generally correct but also
specifically will help user-space applications avoid using the initial
tcpi_delivery_rate value of 0 that persists until the connection has
some non-zero bandwidth sample.
Fixes:
eb8329e0a04d ("tcp: export data delivery rate")
Suggested-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David Morley <morleyd@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Tested-by: David Morley <morleyd@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Kees Cook [Wed, 18 Jan 2023 20:35:01 +0000 (12:35 -0800)]
bnxt: Do not read past the end of test names
Test names were being concatenated based on a offset beyond the end of
the first name, which tripped the buffer overflow detection logic:
detected buffer overflow in strnlen
[...]
Call Trace:
bnxt_ethtool_init.cold+0x18/0x18
Refactor struct hwrm_selftest_qlist_output to use an actual array,
and adjust the concatenation to use snprintf() rather than a series of
strncat() calls.
Reported-by: Niklas Cassel <Niklas.Cassel@wdc.com>
Link: https://lore.kernel.org/lkml/Y8F%2F1w1AZTvLglFX@x1-carbon/
Tested-by: Niklas Cassel <Niklas.Cassel@wdc.com>
Fixes:
eb51365846bc ("bnxt_en: Add basic ethtool -t selftest support.")
Cc: Michael Chan <michael.chan@broadcom.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: netdev@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Matthew Howell [Thu, 19 Jan 2023 19:40:29 +0000 (14:40 -0500)]
serial: exar: Add support for Sealevel 7xxxC serial cards
Add support for Sealevel 7xxxC serial cards.
This patch:
* Adds IDs to recognize 7xxxC cards from Sealevel Systems.
* Updates exar_pci_probe() to set nr_ports to last two bytes of primary
dev ID for these cards.
Signed-off-by: Matthew Howell <matthew.howell@sealevel.com>
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/alpine.DEB.2.21.2301191440010.22558@tstest-VirtualBox
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Vishnu Dasa [Wed, 30 Nov 2022 07:05:11 +0000 (23:05 -0800)]
VMCI: Use threaded irqs instead of tasklets
The vmci_dispatch_dgs() tasklet function calls vmci_read_data()
which uses wait_event() resulting in invalid sleep in an atomic
context (and therefore potentially in a deadlock).
Use threaded irqs to fix this issue and completely remove usage
of tasklets.
[ 20.264639] BUG: sleeping function called from invalid context at drivers/misc/vmw_vmci/vmci_guest.c:145
[ 20.264643] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 762, name: vmtoolsd
[ 20.264645] preempt_count: 101, expected: 0
[ 20.264646] RCU nest depth: 0, expected: 0
[ 20.264647] 1 lock held by vmtoolsd/762:
[ 20.264648] #0:
ffff0000874ae440 (sk_lock-AF_VSOCK){+.+.}-{0:0}, at: vsock_connect+0x60/0x330 [vsock]
[ 20.264658] Preemption disabled at:
[ 20.264659] [<
ffff80000151d7d8>] vmci_send_datagram+0x44/0xa0 [vmw_vmci]
[ 20.264665] CPU: 0 PID: 762 Comm: vmtoolsd Not tainted 5.19.0-0.rc8.20220727git39c3c396f813.60.fc37.aarch64 #1
[ 20.264667] Hardware name: VMware, Inc. VBSA/VBSA, BIOS VEFI 12/31/2020
[ 20.264668] Call trace:
[ 20.264669] dump_backtrace+0xc4/0x130
[ 20.264672] show_stack+0x24/0x80
[ 20.264673] dump_stack_lvl+0x88/0xb4
[ 20.264676] dump_stack+0x18/0x34
[ 20.264677] __might_resched+0x1a0/0x280
[ 20.264679] __might_sleep+0x58/0x90
[ 20.264681] vmci_read_data+0x74/0x120 [vmw_vmci]
[ 20.264683] vmci_dispatch_dgs+0x64/0x204 [vmw_vmci]
[ 20.264686] tasklet_action_common.constprop.0+0x13c/0x150
[ 20.264688] tasklet_action+0x40/0x50
[ 20.264689] __do_softirq+0x23c/0x6b4
[ 20.264690] __irq_exit_rcu+0x104/0x214
[ 20.264691] irq_exit_rcu+0x1c/0x50
[ 20.264693] el1_interrupt+0x38/0x6c
[ 20.264695] el1h_64_irq_handler+0x18/0x24
[ 20.264696] el1h_64_irq+0x68/0x6c
[ 20.264697] preempt_count_sub+0xa4/0xe0
[ 20.264698] _raw_spin_unlock_irqrestore+0x64/0xb0
[ 20.264701] vmci_send_datagram+0x7c/0xa0 [vmw_vmci]
[ 20.264703] vmci_datagram_dispatch+0x84/0x100 [vmw_vmci]
[ 20.264706] vmci_datagram_send+0x2c/0x40 [vmw_vmci]
[ 20.264709] vmci_transport_send_control_pkt+0xb8/0x120 [vmw_vsock_vmci_transport]
[ 20.264711] vmci_transport_connect+0x40/0x7c [vmw_vsock_vmci_transport]
[ 20.264713] vsock_connect+0x278/0x330 [vsock]
[ 20.264715] __sys_connect_file+0x8c/0xc0
[ 20.264718] __sys_connect+0x84/0xb4
[ 20.264720] __arm64_sys_connect+0x2c/0x3c
[ 20.264721] invoke_syscall+0x78/0x100
[ 20.264723] el0_svc_common.constprop.0+0x68/0x124
[ 20.264724] do_el0_svc+0x38/0x4c
[ 20.264725] el0_svc+0x60/0x180
[ 20.264726] el0t_64_sync_handler+0x11c/0x150
[ 20.264728] el0t_64_sync+0x190/0x194
Signed-off-by: Vishnu Dasa <vdasa@vmware.com>
Suggested-by: Zack Rusin <zackr@vmware.com>
Reported-by: Nadav Amit <namit@vmware.com>
Reported-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Fixes:
463713eb6164 ("VMCI: dma dg: add support for DMA datagrams receive")
Cc: <stable@vger.kernel.org> # v5.18+
Cc: VMware PV-Drivers Reviewers <pv-drivers@vmware.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Bryan Tan <bryantan@vmware.com>
Reviewed-by: Bryan Tan <bryantan@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>
Link: https://lore.kernel.org/r/20221130070511.46558-1-vdasa@vmware.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Elliot Berman [Thu, 12 Jan 2023 18:23:12 +0000 (10:23 -0800)]
misc: fastrpc: Pass bitfield into qcom_scm_assign_mem
The srcvm parameter of qcom_scm_assign_mem is a pointer to a bitfield of
VMIDs. The bitfield is updated with which VMIDs have permissions
after the qcom_scm_assign_mem call. This makes it simpler for clients to
make qcom_scm_assign_mem calls later, they always pass in same srcvm
bitfield and do not need to closely track whether memory was originally
shared.
When restoring permissions to HLOS, fastrpc is incorrectly using the
first VMID directly -- neither the BIT nor the other possible VMIDs the
memory was already assigned to. We already have a field intended for
this purpose: "perms" in the struct fastrpc_channel_ctx, but it was
never used. Start using the perms field.
Cc: Abel Vesa <abel.vesa@linaro.org>
Cc: Vamsi Krishna Gattupalli <quic_vgattupa@quicinc.com>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Fixes:
e90d91190619 ("misc: fastrpc: Add support to secure memory map")
Fixes:
0871561055e6 ("misc: fastrpc: Add support for audiopd")
Fixes:
532ad70c6d44 ("misc: fastrpc: Add mmap request assigning for static PD pool")
Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
drivers/misc/fastrpc.c | 15 ++++++---------
1 file changed, 6 insertions(+), 9 deletions(-)
Link: https://lore.kernel.org/r/20230112182313.521467-1-quic_eberman@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Khazhismel Kumykov [Wed, 18 Jan 2023 01:02:12 +0000 (17:02 -0800)]
gsmi: fix null-deref in gsmi_get_variable
We can get EFI variables without fetching the attribute, so we must
allow for that in gsmi.
commit
859748255b43 ("efi: pstore: Omit efivars caching EFI varstore
access layer") added a new get_variable call with attr=NULL, which
triggers panic in gsmi.
Fixes:
74c5b31c6618 ("driver: Google EFI SMI")
Cc: stable <stable@kernel.org>
Signed-off-by: Khazhismel Kumykov <khazhy@google.com>
Link: https://lore.kernel.org/r/20230118010212.1268474-1-khazhy@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ola Jeppsson [Thu, 24 Nov 2022 17:49:41 +0000 (17:49 +0000)]
misc: fastrpc: Fix use-after-free race condition for maps
It is possible that in between calling fastrpc_map_get() until
map->fl->lock is taken in fastrpc_free_map(), another thread can call
fastrpc_map_lookup() and get a reference to a map that is about to be
deleted.
Rewrite fastrpc_map_get() to only increase the reference count of a map
if it's non-zero. Propagate this to callers so they can know if a map is
about to be deleted.
Fixes this warning:
refcount_t: addition on 0; use-after-free.
WARNING: CPU: 5 PID: 10100 at lib/refcount.c:25 refcount_warn_saturate
...
Call trace:
refcount_warn_saturate
[fastrpc_map_get inlined]
[fastrpc_map_lookup inlined]
fastrpc_map_create
fastrpc_internal_invoke
fastrpc_device_ioctl
__arm64_sys_ioctl
invoke_syscall
Fixes:
c68cfb718c8f ("misc: fastrpc: Add support for context Invoke method")
Cc: stable <stable@kernel.org>
Signed-off-by: Ola Jeppsson <ola@snap.com>
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20221124174941.418450-4-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Abel Vesa [Thu, 24 Nov 2022 17:49:40 +0000 (17:49 +0000)]
misc: fastrpc: Don't remove map on creater_process and device_release
Do not remove the map from the list on error path in
fastrpc_init_create_process, instead call fastrpc_map_put, to avoid
use-after-free. Do not remove it on fastrpc_device_release either,
call fastrpc_map_put instead.
The fastrpc_free_map is the only proper place to remove the map.
This is called only after the reference count is 0.
Fixes:
b49f6d83e290 ("misc: fastrpc: Fix a possible double free")
Cc: stable <stable@kernel.org>
Co-developed-by: Ola Jeppsson <ola@snap.com>
Signed-off-by: Ola Jeppsson <ola@snap.com>
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20221124174941.418450-3-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Abel Vesa [Thu, 24 Nov 2022 17:49:39 +0000 (17:49 +0000)]
misc: fastrpc: Fix use-after-free and race in fastrpc_map_find
Currently, there is a race window between the point when the mutex is
unlocked in fastrpc_map_lookup and the reference count increasing
(fastrpc_map_get) in fastrpc_map_find, which can also lead to
use-after-free.
So lets merge fastrpc_map_find into fastrpc_map_lookup which allows us
to both protect the maps list by also taking the &fl->lock spinlock and
the reference count, since the spinlock will be released only after.
Add take_ref argument to make this suitable for all callers.
Fixes:
8f6c1d8c4f0c ("misc: fastrpc: Add fdlist implementation")
Cc: stable <stable@kernel.org>
Co-developed-by: Ola Jeppsson <ola@snap.com>
Signed-off-by: Ola Jeppsson <ola@snap.com>
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20221124174941.418450-2-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dan Carpenter [Tue, 29 Nov 2022 09:45:16 +0000 (12:45 +0300)]
misc: fastrpc: fix error code in fastrpc_req_mmap()
The "err" variable shadows an earlier global variable so this code
returns success instead of a negative error code.
Fixes:
532ad70c6d44 ("misc: fastrpc: Add mmap request assigning for static PD pool")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Link: https://lore.kernel.org/r/Y4XUrMETCl1O6t0A@kili
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alexander Usyskin [Mon, 12 Dec 2022 22:02:47 +0000 (00:02 +0200)]
mei: me: add meteor lake point M DID
Add Meteor Lake Point M device id.
Cc: <stable@vger.kernel.org>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20221212220247.286019-2-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alexander Usyskin [Mon, 12 Dec 2022 22:02:46 +0000 (00:02 +0200)]
mei: bus: fix unlink on bus in error path
Unconditional call to mei_cl_unlink in mei_cl_bus_dev_release leads
to call of the mei_cl_unlink without corresponding mei_cl_link.
This leads to miscalculation of open_handle_count (decrease without
increase).
Call unlink in mei_cldev_enable fail path and remove blanket unlink
from mei_cl_bus_dev_release.
Fixes:
34f1166afd67 ("mei: bus: need to unlink client before freeing")
Cc: <stable@vger.kernel.org>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Reviewed-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20221212220247.286019-1-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Greg Kroah-Hartman [Fri, 20 Jan 2023 10:40:04 +0000 (11:40 +0100)]
Merge tag 'icc-6.2-rc5' of git://git./linux/kernel/git/djakov/icc into char-misc-linus
Georgi writes:
interconnect fixes for v6.2-rc
This contains fixes for a rare boot hang issue that has been reported
on the db820c dragonboard.
- dt-bindings: interconnect: Add UFS clocks to MSM8996 A2NoC
- interconnect: qcom: msm8996: Provide UFS clocks to A2NoC
- interconnect: qcom: msm8996: Fix regmap max_register values
- interconnect: qcom: rpm: Use _optional func for provider clocks
Signed-off-by: Georgi Djakov <djakov@kernel.org>
* tag 'icc-6.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/djakov/icc:
interconnect: qcom: rpm: Use _optional func for provider clocks
interconnect: qcom: msm8996: Fix regmap max_register values
interconnect: qcom: msm8996: Provide UFS clocks to A2NoC
dt-bindings: interconnect: Add UFS clocks to MSM8996 A2NoC
Greg Kroah-Hartman [Fri, 20 Jan 2023 10:16:59 +0000 (11:16 +0100)]
Revert "serial: stm32: Merge hard IRQ and threaded IRQ handling into single IRQ handler"
This reverts commit
f24771b62a83239f0dce816bddf0f6807f436235 as it is
reported to break the build.
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/202301200130.ttBiTzfO-lkp@intel.com
Fixes:
f24771b62a83 ("serial: stm32: Merge hard IRQ and threaded IRQ handling into single IRQ handler")
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Valentin Caron <valentin.caron@foss.st.com> # V3
Cc: Marek Vasut <marex@denx.de>
Cc: Johan Hovold <johan@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Arnd Bergmann [Tue, 17 Jan 2023 16:41:14 +0000 (17:41 +0100)]
firmware: zynqmp: fix declarations for gcc-13
gcc-13.0.1 reports a type mismatch for two functions:
drivers/firmware/xilinx/zynqmp.c:1228:5: error: conflicting types for 'zynqmp_pm_set_rpu_mode' due to enum/integer mismatch; have 'int(u32, enum rpu_oper_mode)' {aka 'int(unsigned int, enum rpu_oper_mode)'} [-Werror=enum-int-mismatch]
1228 | int zynqmp_pm_set_rpu_mode(u32 node_id, enum rpu_oper_mode rpu_mode)
| ^~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/firmware/xilinx/zynqmp.c:25:
include/linux/firmware/xlnx-zynqmp.h:552:5: note: previous declaration of 'zynqmp_pm_set_rpu_mode' with type 'int(u32, u32)' {aka 'int(unsigned int, unsigned int)'}
552 | int zynqmp_pm_set_rpu_mode(u32 node_id, u32 arg1);
| ^~~~~~~~~~~~~~~~~~~~~~
drivers/firmware/xilinx/zynqmp.c:1246:5: error: conflicting types for 'zynqmp_pm_set_tcm_config' due to enum/integer mismatch; have 'int(u32, enum rpu_tcm_comb)' {aka 'int(unsigned int, enum rpu_tcm_comb)'} [-Werror=enum-int-mismatch]
1246 | int zynqmp_pm_set_tcm_config(u32 node_id, enum rpu_tcm_comb tcm_mode)
| ^~~~~~~~~~~~~~~~~~~~~~~~
include/linux/firmware/xlnx-zynqmp.h:553:5: note: previous declaration of 'zynqmp_pm_set_tcm_config' with type 'int(u32, u32)' {aka 'int(unsigned int, unsigned int)'}
553 | int zynqmp_pm_set_tcm_config(u32 node_id, u32 arg1);
| ^~~~~~~~~~~~~~~~~~~~~~~~
Change the declaration in the header to match the function definition.
Acked-by: Michal Simek <michal.simek@amd.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Arnd Bergmann [Fri, 20 Jan 2023 09:40:51 +0000 (10:40 +0100)]
Merge tag 'at91-fixes-6.2' of https://git./linux/kernel/git/at91/linux into arm/fixes
AT91 fixes for 6.2:
It contains:
- fix the clock provided via DT for DDR controller on SAM9X60
* tag 'at91-fixes-6.2' of https://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
ARM: dts: at91: sam9x60: fix the ddr clock for sam9x60
Link: https://lore.kernel.org/r/20230119112101.42045-1-claudiu.beznea@microchip.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Arnd Bergmann [Fri, 20 Jan 2023 09:39:42 +0000 (10:39 +0100)]
Merge tag 'stm32-dt-for-v6.2-fixes-1' of git://git./linux/kernel/git/atorgue/stm32 into arm/fixes
STM32 DT fixes for v6.2, round 1
Highlights:
-----------
-STM32MP15:
- Fix missing chip select phandle in several stm32mp15x based boards.
* tag 'stm32-dt-for-v6.2-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32:
ARM: dts: stm32: Fix qspi pinctrl phandle for stm32mp151a-prtt1l
ARM: dts: stm32: Fix qspi pinctrl phandle for stm32mp157c-emstamp-argon
ARM: dts: stm32: Fix qspi pinctrl phandle for stm32mp15xx-dhcom-som
ARM: dts: stm32: Fix qspi pinctrl phandle for stm32mp15xx-dhcor-som
Link: https://lore.kernel.org/r/3fe26bf9-297b-5c78-682b-37fa6d8b6190@foss.st.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Andrew Halaney [Wed, 18 Jan 2023 16:56:38 +0000 (10:56 -0600)]
net: stmmac: enable all safety features by default
In the original implementation of dwmac5
commit
8bf993a5877e ("net: stmmac: Add support for DWMAC5 and implement Safety Features")
all safety features were enabled by default.
Later it seems some implementations didn't have support for all the
features, so in
commit
5ac712dcdfef ("net: stmmac: enable platform specific safety features")
the safety_feat_cfg structure was added to the callback and defined for
some platforms to selectively enable these safety features.
The problem is that only certain platforms were given that software
support. If the automotive safety package bit is set in the hardware
features register the safety feature callback is called for the platform,
and for platforms that didn't get a safety_feat_cfg defined this results
in the following NULL pointer dereference:
[ 7.933303] Call trace:
[ 7.935812] dwmac5_safety_feat_config+0x20/0x170 [stmmac]
[ 7.941455] __stmmac_open+0x16c/0x474 [stmmac]
[ 7.946117] stmmac_open+0x38/0x70 [stmmac]
[ 7.950414] __dev_open+0x100/0x1dc
[ 7.954006] __dev_change_flags+0x18c/0x204
[ 7.958297] dev_change_flags+0x24/0x6c
[ 7.962237] do_setlink+0x2b8/0xfa4
[ 7.965827] __rtnl_newlink+0x4ec/0x840
[ 7.969766] rtnl_newlink+0x50/0x80
[ 7.973353] rtnetlink_rcv_msg+0x12c/0x374
[ 7.977557] netlink_rcv_skb+0x5c/0x130
[ 7.981500] rtnetlink_rcv+0x18/0x2c
[ 7.985172] netlink_unicast+0x2e8/0x340
[ 7.989197] netlink_sendmsg+0x1a8/0x420
[ 7.993222] ____sys_sendmsg+0x218/0x280
[ 7.997249] ___sys_sendmsg+0xac/0x100
[ 8.001103] __sys_sendmsg+0x84/0xe0
[ 8.004776] __arm64_sys_sendmsg+0x24/0x30
[ 8.008983] invoke_syscall+0x48/0x114
[ 8.012840] el0_svc_common.constprop.0+0xcc/0xec
[ 8.017665] do_el0_svc+0x38/0xb0
[ 8.021071] el0_svc+0x2c/0x84
[ 8.024212] el0t_64_sync_handler+0xf4/0x120
[ 8.028598] el0t_64_sync+0x190/0x194
Go back to the original behavior, if the automotive safety package
is found to be supported in hardware enable all the features unless
safety_feat_cfg is passed in saying this particular platform only
supports a subset of the features.
Fixes:
5ac712dcdfef ("net: stmmac: enable platform specific safety features")
Reported-by: Ning Cai <ncai@quicinc.com>
Signed-off-by: Andrew Halaney <ahalaney@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 20 Jan 2023 09:00:08 +0000 (09:00 +0000)]
Merge branch 'octeontx2-af-CPT'
Srujana Challa says:
====================
octeontx2-af: Miscellaneous changes for CPT
This patchset consists of miscellaneous changes for CPT.
- Adds a new mailbox to reset the requested CPT LF.
- Modify FLR sequence as per HW team suggested.
- Adds support to recover CPT engines when they gets fault.
- Updates CPT inbound inline IPsec configuration mailbox,
as per new generation of the OcteonTX2 chips.
- Adds a new mailbox to return CPT FLT Interrupt info.
---
v2:
- Addressed a review comment.
v1:
- Dropped patch "octeontx2-af: Fix interrupt name strings completely"
to submit to net.
---
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Srujana Challa [Wed, 18 Jan 2023 12:03:54 +0000 (17:33 +0530)]
octeontx2-af: add mbox to return CPT_AF_FLT_INT info
CPT HW would trigger the CPT AF FLT interrupt when CPT engines
hits some uncorrectable errors and AF is the one which receives
the interrupt and recovers the engines.
This patch adds a mailbox for CPT VFs to request for CPT faulted
and recovered engines info.
Signed-off-by: Srujana Challa <schalla@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Srujana Challa [Wed, 18 Jan 2023 12:03:53 +0000 (17:33 +0530)]
octeontx2-af: update cpt lf alloc mailbox
The CN10K CPT coprocessor contains a context processor
to accelerate updates to the IPsec security association
contexts. The context processor contains a context cache.
This patch updates CPT LF ALLOC mailbox to config ctx_ilen
requested by VFs. CPT_LF_ALLOC:ctx_ilen is the size of
initial context fetch.
Signed-off-by: Srujana Challa <schalla@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nithin Dabilpuram [Wed, 18 Jan 2023 12:03:52 +0000 (17:33 +0530)]
octeontx2-af: restore rxc conf after teardown sequence
CN10K CPT coprocessor includes a component named RXC which
is responsible for reassembly of inner IP packets. RXC has
the feature to evict oldest entries based on age/threshold.
The age/threshold is being set to minimum values to evict
all entries at the time of teardown.
This patch adds code to restore timeout and threshold config
after teardown sequence is complete as it is global config.
Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Srujana Challa [Wed, 18 Jan 2023 12:03:51 +0000 (17:33 +0530)]
octeontx2-af: optimize cpt pf identification
Optimize CPT PF identification in mbox handling for faster
mbox response by doing it at AF driver probe instead of
every mbox message.
Signed-off-by: Srujana Challa <schalla@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Srujana Challa [Wed, 18 Jan 2023 12:03:50 +0000 (17:33 +0530)]
octeontx2-af: modify FLR sequence for CPT
On OcteonTX2 platform CPT instruction enqueue is only
possible via LMTST operations.
The existing FLR sequence mentioned in HRM requires
a dummy LMTST to CPT but LMTST can't be submitted from
AF driver. So, HW team provided a new sequence to avoid
dummy LMTST. This patch adds code for the same.
Signed-off-by: Srujana Challa <schalla@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Srujana Challa [Wed, 18 Jan 2023 12:03:49 +0000 (17:33 +0530)]
octeontx2-af: add mbox for CPT LF reset
On OcteonTX2 SoC, the admin function (AF) is the only one with all
priviliges to configure HW and alloc resources, PFs and it's VFs
have to request AF via mailbox for all their needs.
This patch adds a new mailbox for CPT VFs to request for CPT LF
reset.
Signed-off-by: Srujana Challa <schalla@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Srujana Challa [Wed, 18 Jan 2023 12:03:48 +0000 (17:33 +0530)]
octeontx2-af: recover CPT engine when it gets fault
When CPT engine has uncorrectable errors, it will get halted and
must be disabled and re-enabled. This patch adds code for the same.
Signed-off-by: Srujana Challa <schalla@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dave Airlie [Fri, 20 Jan 2023 01:21:19 +0000 (11:21 +1000)]
Merge tag 'amd-drm-fixes-6.2-2023-01-19' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-fixes-6.2-2023-01-19:
amdgpu:
- Fix display scaling
- Fix RN/CZN power reporting on some firmware versions
- Colorspace fixes
- Fix resource freeing in error case in CS IOCTL
- Fix warning on driver unload
- GC11 fixes
- DCN 3.1.4/5 S/G display workarounds
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230119195908.7670-1-alexander.deucher@amd.com
Dave Airlie [Fri, 20 Jan 2023 01:17:11 +0000 (11:17 +1000)]
Merge tag 'drm-misc-fixes-2023-01-19' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
A fix for vc4 to address a memory leak when allocating a buffer, a
Kconfig fix for panfrost and two fixes for i915 and fb-helper to
address some bugs with vga-switcheroo.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20230119082059.h32bs7zqoxmjbcvn@houat
Dave Airlie [Thu, 19 Jan 2023 23:25:09 +0000 (09:25 +1000)]
Merge tag 'drm-intel-fixes-2023-01-19' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
- Reject display plane with height == 0 (Drew)
- re-disable RC6p on Sandy Bridge (Sasa)
- Fix hugepages' selftest (Chris)
- DG2 hw workarounds (Matt Atwood)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Y8mf3/ANNWctpc7R@intel.com
Linus Torvalds [Thu, 19 Jan 2023 23:22:28 +0000 (15:22 -0800)]
Merge tag 'perf-tools-fixes-for-v6.2-3-2023-01-19' of git://git./linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Prevent reading into undefined memory in the expression lexer,
accounting for a trailer backslash followed by the null byte.
- Fix file mode when copying files to the build id cache, the problem
happens when the cache directory is in a different file system than
the file being cached, otherwise the mode was preserved as only a
hard link would be done to save space.
- Fix a related build-id 'perf test' entry that checked that permission
when caching PE (Portable Executable) files, used when profiling
Windows executables under wine.
- Sync the tools/ copies of kvm headers, build_bug.h, socket.h and
arm64's cputype.h with the kernel sources.
* tag 'perf-tools-fixes-for-v6.2-3-2023-01-19' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
perf test build-id: Fix test check for PE file
perf buildid-cache: Fix the file mode with copyfile() while adding file to build-id cache
perf expr: Prevent normalize() from reading into undefined memory in the expression lexer
tools headers: Syncronize linux/build_bug.h with the kernel sources
perf beauty: Update copy of linux/socket.h with the kernel sources
tools headers arm64: Sync arm64's cputype.h with the kernel sources
tools kvm headers arm64: Update KVM header from the kernel sources
tools headers UAPI: Sync x86's asm/kvm.h with the kernel sources
tools headers UAPI: Sync linux/kvm.h with the kernel sources
Dave Airlie [Thu, 19 Jan 2023 21:49:00 +0000 (07:49 +1000)]
Merge tag 'drm-msm-fixes-2023-01-16' of https://gitlab.freedesktop.org/drm/msm into drm-fixes
msm-fixes for v6.3-rc5
Two GPU fixes which were meant to be part of the previous pull request,
but I'd forgotten to fetch from gitlab after the MR was merged so that
git tag was applied to the wrong commit.
- kexec shutdown fix
- fix potential double free
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGskguoVsz2wqAK2k+f32LwcVY5JC6+e2RwLqZswz3RY2Q@mail.gmail.com
Linus Torvalds [Thu, 19 Jan 2023 20:32:07 +0000 (12:32 -0800)]
Merge tag 'printk-for-6.2-rc5' of git://git./linux/kernel/git/printk/linux
Pull printk fixes from Petr Mladek:
- Prevent a potential deadlock when configuring kgdb console
- Fix a kernel doc warning
* tag 'printk-for-6.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
kernel/printk/printk.c: Fix W=1 kernel-doc warning
tty: serial: kgdboc: fix mutex locking order for configure_kgdboc()
Linus Torvalds [Thu, 19 Jan 2023 20:28:53 +0000 (12:28 -0800)]
Merge tag 's390-6.2-3' of git://git./linux/kernel/git/s390/linux
Pull s390 build fix from Heiko Carstens:
- Workaround invalid gcc-11 out of bounds read warning caused by s390's
S390_lowcore definition. This happens only with gcc 11.1.0 and
11.2.0.
The code which causes this warning will be gone with the next merge
window. Therefore just replace the memcpy() with a for loop to get
rid of the warning.
* tag 's390-6.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390: workaround invalid gcc-11 out of bounds read warning
Linus Torvalds [Thu, 19 Jan 2023 20:24:39 +0000 (12:24 -0800)]
Merge tag 'slab-for-6.2-rc5' of git://git./linux/kernel/git/vbabka/slab
Pull slab fix from Vlastimil Babka:
"Just a single fix, since the lkp report originally for a slub-tiny
commit ended up being a gcov/compiler bug:
- periodically resched in SLAB's drain_freelist(), by David Rientjes"
* tag 'slab-for-6.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
mm, slab: periodically resched in drain_freelist()
Viresh Kumar [Wed, 18 Jan 2023 08:38:24 +0000 (14:08 +0530)]
thermal: core: call put_device() only after device_register() fails
put_device() shouldn't be called before a prior call to
device_register(). __thermal_cooling_device_register() doesn't follow
that properly and needs fixing. Also
thermal_cooling_device_destroy_sysfs() is getting called unnecessarily
on few error paths.
Fix all this by placing the calls at the right place.
Based on initial work done by Caleb Connolly.
Fixes:
4748f9687caa ("thermal: core: fix some possible name leaks in error paths")
Fixes:
c408b3d1d9bb ("thermal: Validate new state in cur_state_store()")
Reported-by: Caleb Connolly <caleb.connolly@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Tested-by: Frank Rowand <frowand.list@gmail.com>
Reviewed-by: Yang Yingliang <yangyingliang@huawei.com>
Tested-by: Caleb Connolly <caleb.connolly@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Greg Kroah-Hartman [Thu, 19 Jan 2023 19:03:14 +0000 (20:03 +0100)]
Merge tag 'usb-serial-6.2-rc5' of https://git./linux/kernel/git/johan/usb-serial into usb-linus
Johan writes:
"USB-serial fixes for 6.2-rc5
Here are some new device ids, mostly for Quectel modems.
All have been in linux-next with no reported issues."
* tag 'usb-serial-6.2-rc5' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
USB: serial: option: add Quectel EM05CN modem
USB: serial: option: add Quectel EM05CN (SG) modem
USB: serial: cp210x: add SCALANCE LPE-9000 device id
USB: serial: option: add Quectel EC200U modem
USB: serial: option: add Quectel EM05-G (RS) modem
USB: serial: option: add Quectel EM05-G (GR) modem
USB: serial: option: add Quectel EM05-G (CS) modem
Linus Torvalds [Thu, 19 Jan 2023 17:54:08 +0000 (09:54 -0800)]
Merge tag 'zonefs-6.2-rc5' of git://git./linux/kernel/git/dlemoal/zonefs
Pull zonefs fix from Damien Le Moal:
- A single patch to fix sync write operations to detect and handle
errors due to external zone corruptions resulting in writes at
invalid location, from me.
* tag 'zonefs-6.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
zonefs: Detect append writes at invalid locations
Jens Axboe [Thu, 19 Jan 2023 16:04:40 +0000 (09:04 -0700)]
io_uring/msg_ring: fix missing lock on overflow for IOPOLL
If the target ring is configured with IOPOLL, then we always need to hold
the target ring uring_lock before posting CQEs. We could just grab it
unconditionally, but since we don't expect many target rings to be of this
type, make grabbing the uring_lock conditional on the ring type.
Link: https://lore.kernel.org/io-uring/Y8krlYa52%2F0YGqkg@ip-172-31-85-199.ec2.internal/
Reported-by: Xingyuan Mo <hdthky0@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Rakesh Sankaranarayanan [Wed, 18 Jan 2023 17:47:35 +0000 (23:17 +0530)]
net: dsa: microchip: ksz9477: port map correction in ALU table entry register
ALU table entry 2 register in KSZ9477 have bit positions reserved for
forwarding port map. This field is referred in ksz9477_fdb_del() for
clearing forward port map and alu table.
But current fdb_del refer ALU table entry 3 register for accessing forward
port map. Update ksz9477_fdb_del() to get forward port map from correct
alu table entry register.
With this bug, issue can be observed while deleting static MAC entries.
Delete any specific MAC entry using "bridge fdb del" command. This should
clear all the specified MAC entries. But it is observed that entries with
self static alone are retained.
Tested on LAN9370 EVB since ksz9477_fdb_del() is used common across
LAN937x and KSZ series.
Fixes:
b987e98e50ab ("dsa: add DSA switch driver for Microchip KSZ9477")
Signed-off-by: Rakesh Sankaranarayanan <rakesh.sankaranarayanan@microchip.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20230118174735.702377-1-rakesh.sankaranarayanan@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Willem de Bruijn [Wed, 18 Jan 2023 15:18:47 +0000 (10:18 -0500)]
selftests/net: toeplitz: fix race on tpacket_v3 block close
Avoid race between process wakeup and tpacket_v3 block timeout.
The test waits for cfg_timeout_msec for packets to arrive. Packets
arrive in tpacket_v3 rings, which pass packets ("frames") to the
process in batches ("blocks"). The sk waits for req3.tp_retire_blk_tov
msec to release a block.
Set the block timeout lower than the process waiting time, else
the process may find that no block has been released by the time it
scans the socket list. Convert to a ring of more than one, smaller,
blocks with shorter timeouts. Blocks must be page aligned, so >= 64KB.
Fixes:
5ebfb4cc3048 ("selftests/net: toeplitz test")
Signed-off-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20230118151847.4124260-1-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Paolo Abeni [Wed, 18 Jan 2023 12:24:12 +0000 (13:24 +0100)]
net/ulp: use consistent error code when blocking ULP
The referenced commit changed the error code returned by the kernel
when preventing a non-established socket from attaching the ktls
ULP. Before to such a commit, the user-space got ENOTCONN instead
of EINVAL.
The existing self-tests depend on such error code, and the change
caused a failure:
RUN global.non_established ...
tls.c:1673:non_established:Expected errno (22) == ENOTCONN (107)
non_established: Test failed at step #3
FAIL global.non_established
In the unlikely event existing applications do the same, address
the issue by restoring the prior error code in the above scenario.
Note that the only other ULP performing similar checks at init
time - smc_ulp_ops - also fails with ENOTCONN when trying to attach
the ULP to a non-established socket.
Reported-by: Sabrina Dubroca <sd@queasysnail.net>
Fixes:
2c02d41d71f9 ("net/ulp: prevent ULP without clone op from entering the LISTEN status")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://lore.kernel.org/r/7bb199e7a93317fb6f8bf8b9b2dc71c18f337cde.1674042685.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Chen Zhongjin [Fri, 25 Nov 2022 06:35:41 +0000 (14:35 +0800)]
driver core: Fix test_async_probe_init saves device in wrong array
In test_async_probe_init, second set of asynchronous devices are saved
in sync_dev[sync_id], which should be async_dev[async_id].
This makes these devices not unregistered when exit.
> modprobe test_async_driver_probe && \
> modprobe -r test_async_driver_probe && \
> modprobe test_async_driver_probe
...
> sysfs: cannot create duplicate filename '/devices/platform/test_async_driver.4'
> kobject_add_internal failed for test_async_driver.4 with -EEXIST,
don't try to register things with the same name in the same directory.
Fixes:
57ea974fb871 ("driver core: Rewrite test_async_driver_probe to cover serialization and NUMA affinity")
Signed-off-by: Chen Zhongjin <chenzhongjin@huawei.com>
Link: https://lore.kernel.org/r/20221125063541.241328-1-chenzhongjin@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Yang Yingliang [Mon, 5 Dec 2022 10:15:58 +0000 (18:15 +0800)]
w1: fix WARNING after calling w1_process()
I got the following WARNING message while removing driver(ds2482):
------------[ cut here ]------------
do not call blocking ops when !TASK_RUNNING; state=1 set at [<
000000002d50bfb6>] w1_process+0x9e/0x1d0 [wire]
WARNING: CPU: 0 PID: 262 at kernel/sched/core.c:9817 __might_sleep+0x98/0xa0
CPU: 0 PID: 262 Comm: w1_bus_master1 Tainted: G N 6.1.0-rc3+ #307
RIP: 0010:__might_sleep+0x98/0xa0
Call Trace:
exit_signals+0x6c/0x550
do_exit+0x2b4/0x17e0
kthread_exit+0x52/0x60
kthread+0x16d/0x1e0
ret_from_fork+0x1f/0x30
The state of task is set to TASK_INTERRUPTIBLE in loop in w1_process(),
set it to TASK_RUNNING when it breaks out of the loop to avoid the
warning.
Fixes:
3c52e4e62789 ("W1: w1_process, block or sleep")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20221205101558.3599162-1-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
projects / platform / kernel / linux-rpi.git / log