review.tizen.org Git - platform/kernel/linux-rpi.git/log

Merge tag 'phy-fixes-6.1' of git://git./linux/kernel/git/phy/linux-phy

Pull phy fixes from Vinod Koul:
"A bunch of odd driver fixes and a MAINTAINER email update:

   - Update Kishon's email

   - stms32 error code fix in driver probe

   - tegra: fix for checking valid pointer

   - qcom_qmp: null deref fix

   - sunplus: error check fix

   - ralink: add missing sentinel to table"

* tag 'phy-fixes-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy:
  phy: ralink: mt7621-pci: add sentinel to quirks table
  phy: sunplus: Fix an IS_ERR() vs NULL bug in sp_usb_phy_probe
  phy: qcom-qmp-combo: fix NULL-deref on runtime resume
  phy: tegra: xusb: Fix crash during pad power on/down
  phy: stm32: fix an error code in probe
  MAINTAINERS: Update Kishon's email address in GENERIC PHY FRAMEWORK

Merge tag 'hwlock-v6.1' of git://git./linux/kernel/git/remoteproc/linux

Pull hwspinlock updates from Bjorn Andersson:
"I apparently had missed tagging and sending this set of changes out
  during the 6.1 merge window. But did get the associated dts changes
  depending on this merged. The result is a regression in 6.1-rc on the
  affected, older, Qualcomm platforms - in for form of them not booting.

  So while these weren't regression fixes originally, they are now. It's
  not introducing new beahavior, but simply extending the existing new
  Devicetree model, to cover remaining platforms:

   - extend the DeviceTree binding and implementation for the Qualcomm
     hardware spinlock on some older platforms to follow the style of
     the newer ones where the DeviceTree representation does not rely on
     an intermediate syscon node"

* tag 'hwlock-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux:
  dt-bindings: hwlock: qcom-hwspinlock: add syscon to MSM8974
  hwspinlock: qcom: add support for MMIO on older SoCs
  hwspinlock: qcom: correct MMIO max register for newer SoCs
  dt-bindings: hwlock: qcom-hwspinlock: correct example indentation
  dt-bindings: hwlock: qcom-hwspinlock: add support for MMIO on older SoCs

Merge tag 'slab-for-6.1-rc4-fixes' of git://git./linux/kernel/git/vbabka/slab

Pull slab fixes from Vlastimil Babka:
"Most are small fixups as described below.

  The !CONFIG_TRACING fix is a bit bigger and would normally be done in
  the next merge window as part of upcoming hardening changes. But we
  realized it can make the kmalloc waste tracking introduced in this
  window inaccurate, so decided to go with it now.

  Summary:

   - Remove !CONFIG_TRACING kmalloc() wrappers intended to save a
     function call, due to incompatilibity with recently introduced
     wasted space tracking and planned hardening changes.

   - A tracing parameter regression fix, by Kees Cook.

   - Two kernel-doc warning fixups, by Lukas Bulwahn and myself

* tag 'slab-for-6.1-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
  mm, slab: remove duplicate kernel-doc comment for ksize()
  mm/slab_common: Restore passing "caller" for tracing
  mm/slab: remove !CONFIG_TRACING variants of kmalloc_[node_]trace()
  mm/slab_common: repair kernel-doc for __ksize()

Merge tag 'audit-pr-20221107' of git://git./linux/kernel/git/pcmoore/audit

Pull audit fix from Paul Moore:
"A small audit patch to fix an instance of undefined behavior in a
  shift operator caused when shifting a signed value too far, the same
  case as the lsm patch merged previously.

  While the fix is trivial and I can't imagine it causing a problem in a
  backport, I'm not explicitly marking it for stable on the off chance
  that there is some system out there which is relying on some wonky
  unexpected behavior which this patch could break; *if* it does break,
  IMO it's better that to happen in a minor or -rcX release and not in a
  stable backport"

* tag 'audit-pr-20221107' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
  audit: fix undefined behavior in bit shift for AUDIT_BIT

Merge tag 'lsm-pr-20221107' of git://git./linux/kernel/git/pcmoore/lsm

Pull lsm fix from Paul Moore:
"A small capability patch to fix an instance of undefined behavior in a
  shift operator caused when shifting a signed value too far.

  While the fix is trivial and I can't imagine it causing a problem in a
  backport, I'm not explicitly marking it for stable on the off chance
  that there is some system out there which is relying on some wonky
  unexpected behavior which this patch could break; *if* it does break,
  IMO it's better that to happen in a minor or -rcX release and not in a
  stable backport"

* tag 'lsm-pr-20221107' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm:
  capabilities: fix undefined behavior in bit shift for CAP_TO_MASK

fs/userfaultfd: Fix maple tree iterator in userfaultfd_unregister()

When iterating the VMAs, the maple state needs to be invalidated if the
tree is modified by a split or merge to ensure the maple tree node
contained in the maple state is still valid. These invalidations were
missed, so add them to the paths which alter the tree.

Reported-by: syzbot+0d2014e4da2ccced5b41@syzkaller.appspotmail.com
Fixes: 69dbe6daf104 (userfaultfd: use maple tree iterator to iterate VMAs)
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'platform-drivers-x86-v6.1-3' of git://git./linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver fixes from Hans de Goede:
"The most important fixes here are a set of fixes for the ACPI
  backlight detection refactor which landed in 6.1.

  These fix regressions reported on some laptop models by making
  acpi_video_backlight_use_native() always return true for now, which in
  essence undoes some of the changes.

  I plan to take another shot at having only 1 /sys/class/backlight
  class device per panel with 6.2, with modified detection heuristics to
  avoid the (known) regressions.

  Highlights:

   - ACPI: video: Fix regressions from 6.1 backlight refactor by making
     acpi_video_backlight_use_native() always return true for now

   - Misc other bugfixes and HW id additions"

* tag 'platform-drivers-x86-v6.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  platform/x86: p2sb: Don't fail if unknown CPU is found
  platform/x86/intel/hid: Add some ACPI device IDs
  platform/x86/intel/pmt: Sapphire Rapids PMT errata fix
  platform/x86: hp_wmi: Fix rfkill causing soft blocked wifi
  platform/x86: touchscreen_dmi: Add info for the RCA Cambio W101 v2 2-in-1
  platform/x86: ideapad-laptop: Disable touchpad_switch
  ACPI: video: Add backlight=native DMI quirk for Dell G15 5515
  ACPI: video: Make acpi_video_backlight_use_native() always return true
  ACPI: video: Improve Chromebook checks

mm, slab: remove duplicate kernel-doc comment for ksize()

Akira reports:

> "make htmldocs" reports duplicate C declaration of ksize() as follows:

> /linux/Documentation/core-api/mm-api:43: ./mm/slab_common.c:1428: WARNING: Duplicate C declaration, also defined at core-api/mm-api:212.
> Declaration is '.. c:function:: size_t ksize (const void *objp)'.

> This is due to the kernel-doc comment for ksize() declaration added in
> include/linux/slab.h by commit 05a940656e1e ("slab: Introduce
> kmalloc_size_roundup()").

There is an older kernel-doc comment for ksize() definition in
mm/slab_common.c, which is not only duplicated, but also contradicts the
new one - the additional storage discovered by ksize() should not be
used by callers anymore. Delete the old kernel-doc.

Reported-by: Akira Yokosawa <akiyks@gmail.com>
Link: https://lore.kernel.org/all/d33440f6-40cf-9747-3340-e54ffaf7afb8@gmail.com/
Fixes: 05a940656e1e ("slab: Introduce kmalloc_size_roundup()")
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>

platform/x86: p2sb: Don't fail if unknown CPU is found

We have accessing P2SB from a very few places for quite known hardware.

When a new SoC appears in intel-family.h it's not obvious that it needs
to be added to p2sb.c as well. Instead, provide default BDF and refactor
p2sb_get_devfn() to always succeed. If in the future we would need to
exclude something, we may add a list of unsupported IDs.

Without this change the iTCO on Intel Comet Lake SoCs became unavailable:

i801_smbus 0000:00:1f.4: failed to create iTCO device

Fixes: 5c7b9167ddf8 ("i2c: i801: convert to use common P2SB accessor")
Reported-and-tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20221104154916.35231-1-andriy.shevchenko@linux.intel.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

platform/x86/intel/hid: Add some ACPI device IDs

Add INTC1076 (JasonLake), INTC1077 (MeteorLake) and INTC1078 (RaptorLake)
devices IDs.

Signed-off-by: Ivan Hu <ivan.hu@canonical.com>
Link: https://lore.kernel.org/r/20221102020548.5225-1-ivan.hu@canonical.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

platform/x86/intel/pmt: Sapphire Rapids PMT errata fix

On Sapphire Rapids, due to a hardware issue affecting the PUNIT telemetry
region, reads that are not done in QWORD quantities and alignment may
return incorrect data. Use a custom 64-bit copy for this region.

Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Link: https://lore.kernel.org/r/20221105034228.1376677-1-david.e.box@linux.intel.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

platform/x86: hp_wmi: Fix rfkill causing soft blocked wifi

After upgrading BIOS to U82 01.02.01 Rev.A, the console is flooded
strange char "^@" which printed out every second and makes login
nearly impossible. Also the below messages were shown both in console
and journal/dmesg every second:

usb 1-3: Device not responding to setup address.
usb 1-3: device not accepting address 4, error -71
usb 1-3: device descriptor read/all, error -71
usb usb1-port3: unable to enumerate USB device

Wifi is soft blocked by checking rfkill. When unblocked manually,
after few seconds it would be soft blocked again. So I was suspecting
something triggered rfkill to soft block wifi. At the end it was
fixed by removing hp_wmi module.

The root cause is the way hp-wmi driver handles command 1B on
post-2009 BIOS. In pre-2009 BIOS, command 1Bh return 0x4 to indicate
that BIOS no longer controls the power for the wireless devices.

Signed-off-by: Jorge Lopez <jorge.lopez2@hp.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216468
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20221028155527.7724-1-jorge.lopez2@hp.com
Cc: stable@vger.kernel.org
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

platform/x86: touchscreen_dmi: Add info for the RCA Cambio W101 v2 2-in-1

Add touchscreen info for the RCA Cambio W101 v2 2-in-1.

Link: https://github.com/onitake/gsl-firmware/discussions/193
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20221025141131.509211-1-hdegoede@redhat.com

platform/x86: ideapad-laptop: Disable touchpad_switch

Ideapads for "Lenovo Yoga 3 Pro 1370" and "ZhaoYang K4e-IML" do not
use EC to switch touchpad.

Reading VPCCMD_R_TOUCHPAD will return zero thus touchpad may be blocked
unexpectedly.

Signed-off-by: Manyi Li <limanyi@uniontech.com>
Link: https://lore.kernel.org/r/20221018095323.14591-1-limanyi@uniontech.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

ACPI: video: Add backlight=native DMI quirk for Dell G15 5515

The Dell G15 5515 has the WMI interface (and WMI call returns) expected
by the nvidia-wmi-ec-backlight interface. But the backlight class device
registered by the nvidia-wmi-ec-backlight driver does not actually work.

The amdgpu_bl0 native GPU backlight class device does actually work,
add a backlight=native DMI quirk for this.

Reported-by: Iris <pawel.js@protonmail.com>
Reviewed-by: Daniel Dadap <ddadap@nvidia.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
Changes in v2:
- Add a comment that this needs to be revisited when dynamic-mux
support gets added (suggested by: Daniel Dadap)

ACPI: video: Make acpi_video_backlight_use_native() always return true

Testing has shown that there are quite a few laptop models which rely
on native backlight control and which do not support ACPI video bus
backlight control, causing __acpi_video_get_backlight_type() to return
vendor. Known Windows laptop models affected by this are:

Acer Aspire 1640
HP Compaq nc6120
IBM ThinkPad X40
System76 Starling Star1

and the following MacBook models are affected too:

Apple MacBook 2.1
Apple MacBook 4.1
Apple MacBook Pro 7.1

the list of affected Windows laptop models is likely just the top of
the iceberg. So for now lets undo the change to not register native
backlight class devices when __acpi_video_get_backlight_type() != native.

Since as part of the backlight-detect refactor the detection code now
relies on the GPU drivers calling acpi_video_backlight_use_native() to
learn that native backlight support is available we cannot just remove
the acpi_video_backlight_use_native() calls from the GPU drivers.

Instead modify acpi_video_backlight_use_native() to always return true
for now. This is meant as a temporary work-around, which will be removed
again when the heuristics from __acpi_video_get_backlight_type() have
been improved so that they will return native on affected models.

Reported-by: Matthew Garrett <mjg59@srcf.ucam.org>
Reported-by: John Warriner <taijitu@cox.net>
Reported-by: Scott Ostrander <sos12_3@hotmail.com>
Reported-by: Matthias Rampke <matthias.rampke@googlemail.com>
Reported-by: Milan Hodoscek <hmilan@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

ACPI: video: Improve Chromebook checks

2 improvements for the Chromebook handling in
acpi_video_get_backlight_type():

1. Also check for the "GOOG000C" ACPI HID used on some models
2. Move the Chromebook check to above the ACPI-video check normally
   Chromebooks don't have ACPI video backlight support, but when
   flashed with upstream coreboot builds they may have ACPI video
   backlight support, but native should still be used/preferred then.

Suggested-by: Mr. Chromebox <mrchromebox@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

Linux 6.1-rc4

Merge tag 'cxl-fixes-for-6.1-rc4' of git://git./linux/kernel/git/cxl/cxl

Pull cxl fixes from Dan Williams:
"Several fixes for CXL region creation crashes, leaks and failures.

  This is mainly fallout from the original implementation of dynamic CXL
  region creation (instantiate new physical memory pools) that arrived
  in v6.0-rc1.

  Given the theme of "failures in the presence of pass-through decoders"
  this also includes new regression test infrastructure for that case.

  Summary:

   - Fix region creation crash with pass-through decoders

   - Fix region creation crash when no decoder allocation fails

   - Fix region creation crash when scanning regions to enforce the
     increasing physical address order constraint that CXL mandates

   - Fix a memory leak for cxl_pmem_region objects, track 1:N instead of
     1:1 memory-device-to-region associations.

   - Fix a memory leak for cxl_region objects when regions with active
     targets are deleted

   - Fix assignment of NUMA nodes to CXL regions by CFMWS (CXL Window)
     emulated proximity domains.

   - Fix region creation failure for switch attached devices downstream
     of a single-port host-bridge

   - Fix false positive memory leak of cxl_region objects by recycling
     recently used region ids rather than freeing them

   - Add regression test infrastructure for a pass-through decoder
     configuration

   - Fix some mailbox payload handling corner cases"

* tag 'cxl-fixes-for-6.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
  cxl/region: Recycle region ids
  cxl/region: Fix 'distance' calculation with passthrough ports
  tools/testing/cxl: Add a single-port host-bridge regression config
  tools/testing/cxl: Fix some error exits
  cxl/pmem: Fix cxl_pmem_region and cxl_memdev leak
  cxl/region: Fix cxl_region leak, cleanup targets at region delete
  cxl/region: Fix region HPA ordering validation
  cxl/pmem: Use size_add() against integer overflow
  cxl/region: Fix decoder allocation crash
  ACPI: NUMA: Add CXL CFMWS 'nodes' to the possible nodes set
  cxl/pmem: Fix failure to account for 8 byte header for writes to the device LSA.
  cxl/region: Fix null pointer dereference due to pass through decoder commit
  cxl/mbox: Add a check on input payload size

Merge tag 'hwmon-for-v6.1-rc4' of git://git./linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:
"Fix two regressions:

   - Commit 54cc3dbfc10d ("hwmon: (pmbus) Add regulator supply into
     macro") resulted in regulator undercount when disabling regulators.
     Revert it.

   - The thermal subsystem rework caused the scmi driver to no longer
     register with the thermal subsystem because index values no longer
     match. To fix the problem, the scmi driver now directly registers
     with the thermal subsystem, no longer through the hwmon core"

* tag 'hwmon-for-v6.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  Revert "hwmon: (pmbus) Add regulator supply into macro"
  hwmon: (scmi) Register explicitly with Thermal Framework

Merge tag 'perf_urgent_for_v6.1_rc4' of git://git./linux/kernel/git/tip/tip

Pull perf fixes from Borislav Petkov:

- Add Cooper Lake's stepping to the PEBS guest/host events isolation
   fixed microcode revisions checking quirk

- Update Icelake and Sapphire Rapids events constraints

- Use the standard energy unit for Sapphire Rapids in RAPL

- Fix the hw_breakpoint test to fail more graciously on !SMP configs

* tag 'perf_urgent_for_v6.1_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/intel: Add Cooper Lake stepping to isolation_ucodes[]
  perf/x86/intel: Fix pebs event constraints for SPR
  perf/x86/intel: Fix pebs event constraints for ICL
  perf/x86/rapl: Use standard Energy Unit for SPR Dram RAPL domain
  perf/hw_breakpoint: test: Skip the test if dependencies unmet

Merge tag 'x86_urgent_for_v6.1_rc4' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:

- Add new Intel CPU models

- Enforce that TDX guests are successfully loaded only on TDX hardware
   where virtualization exception (#VE) delivery on kernel memory is
   disabled because handling those in all possible cases is "essentially
   impossible"

- Add the proper include to the syscall wrappers so that BTF can see
   the real pt_regs definition and not only the forward declaration

* tag 'x86_urgent_for_v6.1_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/cpu: Add several Intel server CPU model numbers
  x86/tdx: Panic on bad configs that #VE on "private" memory access
  x86/tdx: Prepare for using "INFO" call for a second purpose
  x86/syscall: Include asm/ptrace.h in syscall_wrapper header

Merge tag 'kbuild-fixes-v6.1-2' of git://git./linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

- Use POSIX-compatible grep options

- Document git-related tips for reproducible builds

- Fix a typo in the modpost rule

- Suppress SIGPIPE error message from gcc-ar and llvm-ar

- Fix segmentation fault in the menuconfig search

* tag 'kbuild-fixes-v6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kconfig: fix segmentation fault in menuconfig search
  kbuild: fix SIGPIPE error message for AR=gcc-ar and AR=llvm-ar
  kbuild: fix typo in modpost
  Documentation: kbuild: Add description of git for reproducible builds
  kbuild: use POSIX-compatible grep option

mm/slab_common: Restore passing "caller" for tracing

The "caller" argument was accidentally being ignored in a few places
that were recently refactored. Restore these "caller" arguments, instead
of _RET_IP_.

Fixes: 11e9734bcb6a ("mm/slab_common: unify NUMA and UMA version of tracepoints")
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: linux-mm@kvack.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>

Merge tag 'for-linus' of git://git./virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
"ARM:

   - Fix the pKVM stage-1 walker erronously using the stage-2 accessor

   - Correctly convert vcpu->kvm to a hyp pointer when generating an
     exception in a nVHE+MTE configuration

   - Check that KVM_CAP_DIRTY_LOG_* are valid before enabling them

   - Fix SMPRI_EL1/TPIDR2_EL0 trapping on VHE

   - Document the boot requirements for FGT when entering the kernel at
     EL1

  x86:

   - Use SRCU to protect zap in __kvm_set_or_clear_apicv_inhibit()

   - Make argument order consistent for kvcalloc()

   - Userspace API fixes for DEBUGCTL and LBRs"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: Fix a typo about the usage of kvcalloc()
  KVM: x86: Use SRCU to protect zap in __kvm_set_or_clear_apicv_inhibit()
  KVM: VMX: Ignore guest CPUID for host userspace writes to DEBUGCTL
  KVM: VMX: Fold vmx_supported_debugctl() into vcpu_supported_debugctl()
  KVM: VMX: Advertise PMU LBRs if and only if perf supports LBRs
  arm64: booting: Document our requirements for fine grained traps with SME
  KVM: arm64: Fix SMPRI_EL1/TPIDR2_EL0 trapping on VHE
  KVM: Check KVM_CAP_DIRTY_LOG_{RING, RING_ACQ_REL} prior to enabling them
  KVM: arm64: Fix bad dereference on MTE-enabled systems
  KVM: arm64: Use correct accessor to parse stage-1 PTEs

Merge tag 'for-linus-6.1-rc4-tag' of git://git./linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:
"One fix for silencing a smatch warning, and a small cleanup patch"

* tag 'for-linus-6.1-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
x86/xen: simplify sysenter and syscall setup
x86/xen: silence smatch warning in pmu_msr_chk_emulated()

Merge tag 'ext4_for_linus_stable' of git://git./linux/kernel/git/tytso/ext4

Pull ext4 fixes from Ted Ts'o:
"Fix a number of bugs, including some regressions, the most serious of
  which was one which would cause online resizes to fail with file
  systems with metadata checksums enabled.

  Also fix a warning caused by the newly added fortify string checker,
  plus some bugs that were found using fuzzed file systems"

* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: fix fortify warning in fs/ext4/fast_commit.c:1551
  ext4: fix wrong return err in ext4_load_and_init_journal()
  ext4: fix warning in 'ext4_da_release_space'
  ext4: fix BUG_ON() when directory entry has invalid rec_len
  ext4: update the backup superblock's at the end of the online resize

Merge tag '6.1-rc4-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fixes from Steve French:
"One symlink handling fix and two fixes foir multichannel issues with
  iterating channels, including for oplock breaks when leases are
  disabled"

* tag '6.1-rc4-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: fix use-after-free on the link name
  cifs: avoid unnecessary iteration of tcp sessions
  cifs: always iterate smb sessions using primary channel

Merge tag 'trace-v6.1-rc3' of git://git./linux/kernel/git/trace/linux-trace

Pull `lTracing fixes for 6.1-rc3:

- Fixed NULL pointer dereference in the ring buffer wait-waiters code
   for machines that have less CPUs than what nr_cpu_ids returns.

   The buffer array is of size nr_cpu_ids, but only the online CPUs get
   initialized.

- Fixed use after free call in ftrace_shutdown.

- Fix accounting of if a kprobe is enabled

- Fix NULL pointer dereference on error path of fprobe rethook_alloc().

- Fix unregistering of fprobe_kprobe_handler

- Fix memory leak in kprobe test module

* tag 'trace-v6.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing: kprobe: Fix memory leak in test_gen_kprobe/kretprobe_cmd()
  tracing/fprobe: Fix to check whether fprobe is registered correctly
  fprobe: Check rethook_alloc() return in rethook initialization
  kprobe: reverse kp->flags when arm_kprobe failed
  ftrace: Fix use-after-free for dynamic ftrace_ops
  ring-buffer: Check for NULL cpu_buffer in ring_buffer_wake_waiters()

Merge tag 'kvmarm-fixes-6.1-3' of git://git./linux/kernel/git/kvmarm/kvmarm into HEAD

* Fix the pKVM stage-1 walker erronously using the stage-2 accessor

* Correctly convert vcpu->kvm to a hyp pointer when generating
an exception in a nVHE+MTE configuration

* Check that KVM_CAP_DIRTY_LOG_* are valid before enabling them

* Fix SMPRI_EL1/TPIDR2_EL0 trapping on VHE

* Document the boot requirements for FGT when entering the kernel
at EL1

Merge branch 'kvm-master' into HEAD

x86:
* Use SRCU to protect zap in __kvm_set_or_clear_apicv_inhibit()

* Make argument order consistent for kvcalloc()

* Userspace API fixes for DEBUGCTL and LBRs

ext4: fix fortify warning in fs/ext4/fast_commit.c:1551

With the new fortify string system, rework the memcpy to avoid this
warning:

memcpy: detected field-spanning write (size 60) of single field "&raw_inode->i_generation" at fs/ext4/fast_commit.c:1551 (size 4)

Cc: stable@kernel.org
Fixes: 54d9469bc515 ("fortify: Add run-time WARN for cross-field memcpy()")
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

ext4: fix wrong return err in ext4_load_and_init_journal()

The return value is wrong in ext4_load_and_init_journal(). The local
variable 'err' need to be initialized before goto out. The original code
in __ext4_fill_super() is fine because it has two return values 'ret'
and 'err' and 'ret' is initialized as -EINVAL. After we factor out
ext4_load_and_init_journal(), this code is broken. So fix it by directly
returning -EINVAL in the error handler path.

Cc: stable@kernel.org
Fixes: 9c1dd22d7422 ("ext4: factor out ext4_load_and_init_journal()")
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20221025040206.3134773-1-yanaijie@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

ext4: fix warning in 'ext4_da_release_space'

Syzkaller report issue as follows:
EXT4-fs (loop0): Free/Dirty block details
EXT4-fs (loop0): free_blocks=0
EXT4-fs (loop0): dirty_blocks=0
EXT4-fs (loop0): Block reservation details
EXT4-fs (loop0): i_reserved_data_blocks=0
EXT4-fs warning (device loop0): ext4_da_release_space:1527: ext4_da_release_space: ino 18, to_free 1 with only 0 reserved data blocks
------------[ cut here ]------------
WARNING: CPU: 0 PID: 92 at fs/ext4/inode.c:1528 ext4_da_release_space+0x25e/0x370 fs/ext4/inode.c:1524
Modules linked in:
CPU: 0 PID: 92 Comm: kworker/u4:4 Not tainted 6.0.0-syzkaller-09423-g493ffd6605b2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Workqueue: writeback wb_workfn (flush-7:0)
RIP: 0010:ext4_da_release_space+0x25e/0x370 fs/ext4/inode.c:1528
RSP: 0018:ffffc900015f6c90 EFLAGS: 00010296
RAX: 42215896cd52ea00 RBX: 0000000000000000 RCX: 42215896cd52ea00
RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
RBP: 1ffff1100e907d96 R08: ffffffff816aa79d R09: fffff520002bece5
R10: fffff520002bece5 R11: 1ffff920002bece4 R12: ffff888021fd2000
R13: ffff88807483ecb0 R14: 0000000000000001 R15: ffff88807483e740
FS:  0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555569ba628 CR3: 000000000c88e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
ext4_es_remove_extent+0x1ab/0x260 fs/ext4/extents_status.c:1461
mpage_release_unused_pages+0x24d/0xef0 fs/ext4/inode.c:1589
ext4_writepages+0x12eb/0x3be0 fs/ext4/inode.c:2852
do_writepages+0x3c3/0x680 mm/page-writeback.c:2469
__writeback_single_inode+0xd1/0x670 fs/fs-writeback.c:1587
writeback_sb_inodes+0xb3b/0x18f0 fs/fs-writeback.c:1870
wb_writeback+0x41f/0x7b0 fs/fs-writeback.c:2044
wb_do_writeback fs/fs-writeback.c:2187 [inline]
wb_workfn+0x3cb/0xef0 fs/fs-writeback.c:2227
process_one_work+0x877/0xdb0 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
</TASK>

Above issue may happens as follows:
ext4_da_write_begin
  ext4_create_inline_data
    ext4_clear_inode_flag(inode, EXT4_INODE_EXTENTS);
    ext4_set_inode_flag(inode, EXT4_INODE_INLINE_DATA);
__ext4_ioctl
  ext4_ext_migrate -> will lead to eh->eh_entries not zero, and set extent flag
ext4_da_write_begin
  ext4_da_convert_inline_data_to_extent
    ext4_da_write_inline_data_begin
      ext4_da_map_blocks
        ext4_insert_delayed_block
  if (!ext4_es_scan_clu(inode, &ext4_es_is_delonly, lblk))
    if (!ext4_es_scan_clu(inode, &ext4_es_is_mapped, lblk))
      ext4_clu_mapped(inode, EXT4_B2C(sbi, lblk)); -> will return 1
       allocated = true;
          ext4_es_insert_delayed_block(inode, lblk, allocated);
ext4_writepages
  mpage_map_and_submit_extent(handle, &mpd, &give_up_on_write); -> return -ENOSPC
  mpage_release_unused_pages(&mpd, give_up_on_write); -> give_up_on_write == 1
    ext4_es_remove_extent
      ext4_da_release_space(inode, reserved);
        if (unlikely(to_free > ei->i_reserved_data_blocks))
  -> to_free == 1  but ei->i_reserved_data_blocks == 0
  -> then trigger warning as above

To solve above issue, forbid inode do migrate which has inline data.

Cc: stable@kernel.org
Reported-by: syzbot+c740bb18df70ad00952e@syzkaller.appspotmail.com
Signed-off-by: Ye Bin <yebin10@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20221018022701.683489-1-yebin10@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

ext4: fix BUG_ON() when directory entry has invalid rec_len

The rec_len field in the directory entry has to be a multiple of 4.  A
corrupted filesystem image can be used to hit a BUG() in
ext4_rec_len_to_disk(), called from make_indexed_dir().

------------[ cut here ]------------
kernel BUG at fs/ext4/ext4.h:2413!
...
RIP: 0010:make_indexed_dir+0x53f/0x5f0
...
Call Trace:
  <TASK>
  ? add_dirent_to_buf+0x1b2/0x200
  ext4_add_entry+0x36e/0x480
  ext4_add_nondir+0x2b/0xc0
  ext4_create+0x163/0x200
  path_openat+0x635/0xe90
  do_filp_open+0xb4/0x160
  ? __create_object.isra.0+0x1de/0x3b0
  ? _raw_spin_unlock+0x12/0x30
  do_sys_openat2+0x91/0x150
  __x64_sys_open+0x6c/0xa0
  do_syscall_64+0x3c/0x80
  entry_SYSCALL_64_after_hwframe+0x46/0xb0

The fix simply adds a call to ext4_check_dir_entry() to validate the
directory entry, returning -EFSCORRUPTED if the entry is invalid.

CC: stable@kernel.org
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216540
Signed-off-by: Luís Henriques <lhenriques@suse.de>
Link: https://lore.kernel.org/r/20221012131330.32456-1-lhenriques@suse.de
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

Merge tag 'acpi-6.1-rc4' of git://git./linux/kernel/git/rafael/linux-pm

Pull ACPI fix from Rafael Wysocki:
"Add StorageD3Enable quirk for Dell Inspiron 16 5625 (Mario
Limonciello)"

* tag 'acpi-6.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: x86: Add another system to quirk list for forcing StorageD3Enable

Merge branch 'acpi-x86'

* acpi-x86:
ACPI: x86: Add another system to quirk list for forcing StorageD3Enable

Merge tag 'block-6.1-2022-11-05' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:

- Fixes for the ublk driver (Ming)

- Fixes for error handling memory leaks (Chen Jun, Chen Zhongjin)

- Explicitly clear the last request in a chain when the plug is
   flushed, as it may have already been issued (Al)

* tag 'block-6.1-2022-11-05' of git://git.kernel.dk/linux:
  block: blk_add_rq_to_plug(): clear stale 'last' after flush
  blk-mq: Fix kmemleak in blk_mq_init_allocated_queue
  block: Fix possible memory leak for rq_wb on add_disk failure
  ublk_drv: add ublk_queue_cmd() for cleanup
  ublk_drv: avoid to touch io_uring cmd in blk_mq io path
  ublk_drv: comment on ublk_driver entry of Kconfig
  ublk_drv: return flag of UBLK_F_URING_CMD_COMP_IN_TASK in case of module

phy: ralink: mt7621-pci: add sentinel to quirks table

With mt7621 soc_dev_attr fixed to register the soc as a device,
kernel will experience an oops in soc_device_match_attr

This quirk test was introduced in the staging driver in
commit 9445ccb3714c ("staging: mt7621-pci-phy: add quirks for 'E2'
revision using 'soc_device_attribute'"). The staging driver was removed,
and later re-added in commit d87da32372a0 ("phy: ralink: Add PHY driver
for MT7621 PCIe PHY") for kernel 5.11

Link: https://lore.kernel.org/lkml/26ebbed1-0fe9-4af9-8466-65f841d0b382@app.fastmail.com
Fixes: d87da32372a0 ("phy: ralink: Add PHY driver for MT7621 PCIe PHY")
Signed-off-by: John Thomson <git@johnthomson.fastmail.com.au>
Acked-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20221104205242.3440388-2-git@johnthomson.fastmail.com.au
Signed-off-by: Vinod Koul <vkoul@kernel.org>

capabilities: fix undefined behavior in bit shift for CAP_TO_MASK

Shifting signed 32-bit value by 31 bits is undefined, so changing
significant bit to unsigned. The UBSAN warning calltrace like below:

UBSAN: shift-out-of-bounds in security/commoncap.c:1252:2
left shift of 1 by 31 places cannot be represented in type 'int'
Call Trace:
<TASK>
dump_stack_lvl+0x7d/0xa5
dump_stack+0x15/0x1b
ubsan_epilogue+0xe/0x4e
__ubsan_handle_shift_out_of_bounds+0x1e7/0x20c
cap_task_prctl+0x561/0x6f0
security_task_prctl+0x5a/0xb0
__x64_sys_prctl+0x61/0x8f0
do_syscall_64+0x58/0x80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
</TASK>

Fixes: e338d263a76a ("Add 64-bit capability support to the kernel")
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Acked-by: Andrew G. Morgan <morgan@kernel.org>
Reviewed-by: Serge Hallyn <serge@hallyn.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>

cifs: fix use-after-free on the link name

xfstests generic/011 reported use-after-free bug as follows:

  BUG: KASAN: use-after-free in __d_alloc+0x269/0x859
  Read of size 15 at addr ffff8880078933a0 by task dirstress/952

  CPU: 1 PID: 952 Comm: dirstress Not tainted 6.1.0-rc3+ #77
  Call Trace:
   __dump_stack+0x23/0x29
   dump_stack_lvl+0x51/0x73
   print_address_description+0x67/0x27f
   print_report+0x3e/0x5c
   kasan_report+0x7b/0xa8
   kasan_check_range+0x1b2/0x1c1
   memcpy+0x22/0x5d
   __d_alloc+0x269/0x859
   d_alloc+0x45/0x20c
   d_alloc_parallel+0xb2/0x8b2
   lookup_open+0x3b8/0x9f9
   open_last_lookups+0x63d/0xc26
   path_openat+0x11a/0x261
   do_filp_open+0xcc/0x168
   do_sys_openat2+0x13b/0x3f7
   do_sys_open+0x10f/0x146
   __se_sys_creat+0x27/0x2e
   __x64_sys_creat+0x55/0x6a
   do_syscall_64+0x40/0x96
   entry_SYSCALL_64_after_hwframe+0x63/0xcd

  Allocated by task 952:
   kasan_save_stack+0x1f/0x42
   kasan_set_track+0x21/0x2a
   kasan_save_alloc_info+0x17/0x1d
   __kasan_kmalloc+0x7e/0x87
   __kmalloc_node_track_caller+0x59/0x155
   kstrndup+0x60/0xe6
   parse_mf_symlink+0x215/0x30b
   check_mf_symlink+0x260/0x36a
   cifs_get_inode_info+0x14e1/0x1690
   cifs_revalidate_dentry_attr+0x70d/0x964
   cifs_revalidate_dentry+0x36/0x62
   cifs_d_revalidate+0x162/0x446
   lookup_open+0x36f/0x9f9
   open_last_lookups+0x63d/0xc26
   path_openat+0x11a/0x261
   do_filp_open+0xcc/0x168
   do_sys_openat2+0x13b/0x3f7
   do_sys_open+0x10f/0x146
   __se_sys_creat+0x27/0x2e
   __x64_sys_creat+0x55/0x6a
   do_syscall_64+0x40/0x96
   entry_SYSCALL_64_after_hwframe+0x63/0xcd

  Freed by task 950:
   kasan_save_stack+0x1f/0x42
   kasan_set_track+0x21/0x2a
   kasan_save_free_info+0x1c/0x34
   ____kasan_slab_free+0x1c1/0x1d5
   __kasan_slab_free+0xe/0x13
   __kmem_cache_free+0x29a/0x387
   kfree+0xd3/0x10e
   cifs_fattr_to_inode+0xb6a/0xc8c
   cifs_get_inode_info+0x3cb/0x1690
   cifs_revalidate_dentry_attr+0x70d/0x964
   cifs_revalidate_dentry+0x36/0x62
   cifs_d_revalidate+0x162/0x446
   lookup_open+0x36f/0x9f9
   open_last_lookups+0x63d/0xc26
   path_openat+0x11a/0x261
   do_filp_open+0xcc/0x168
   do_sys_openat2+0x13b/0x3f7
   do_sys_open+0x10f/0x146
   __se_sys_creat+0x27/0x2e
   __x64_sys_creat+0x55/0x6a
   do_syscall_64+0x40/0x96
   entry_SYSCALL_64_after_hwframe+0x63/0xcd

When opened a symlink, link name is from 'inode->i_link', but it may be
reset to a new value when revalidate the dentry. If some processes get the
link name on the race scenario, then UAF will happen on link name.

Fix this by implementing 'get_link' interface to duplicate the link name.

Fixes: 76894f3e2f71 ("cifs: improve symlink handling for smb2+")
Signed-off-by: ChenXiaoSong <chenxiaosong2@huawei.com>
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>

cifs: avoid unnecessary iteration of tcp sessions

In a few places, we do unnecessary iterations of
tcp sessions, even when the server struct is provided.

The change avoids it and uses the server struct provided.

Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>

cifs: always iterate smb sessions using primary channel

smb sessions and tcons currently hang off primary channel only.
Secondary channels have the lists as empty. Whenever there's a
need to iterate sessions or tcons, we should use the list in the
corresponding primary channel.

Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>

Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:

- Avoid kprobe recursion when cortex_a76_erratum_1463225_debug_handler()
   is not inlined (change to __always_inline).

- Fix the visibility of compat hwcaps, broken by recent changes to
   consolidate the visibility of hwcaps and the user-space view of the
   ID registers.

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: cpufeature: Fix the visibility of compat hwcaps
  arm64: entry: avoid kprobe recursion

Merge tag 'i2c-for-6.1-rc4' of git://git./linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
"A documentation fix and driver fixes for piix4, tegra, and i801"

* tag 'i2c-for-6.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  Documentation: devres: add missing I2C helper
  i2c: i801: add lis3lv02d's I2C address for Vostro 5568
  i2c: tegra: Allocate DMA memory for DMA engine
  i2c: piix4: Fix adapter not be removed in piix4_remove()

Revert "hwmon: (pmbus) Add regulator supply into macro"

This reverts commit 54cc3dbfc10dc3db7cb1cf49aee4477a8398fbde.

Zev Weiss reports that the reverted patch may cause a regulator
undercount. Here is his report:

... having regulator-dummy set as a supply on my PMBus regulators
(instead of having them as their own top-level regulators without
an upstream supply) leads to enable-count underflow errors when
disabling them:

    # echo 0 > /sys/bus/platform/devices/efuse01/state
    [  906.094477] regulator-dummy: Underflow of regulator enable count
    [  906.100563] Failed to disable vout: -EINVAL
    [  136.992676] reg-userspace-consumer efuse01: Failed to configure state: -22

Zev reports that reverting the patch fixes the problem. So let's do that
for now.

Fixes: 54cc3dbfc10d ("hwmon: (pmbus) Add regulator supply into macro")
Cc: Marcello Sylvester Bauer <sylv@sylv.io>
Reported-by: Zev Weiss <zev@bewilderbeest.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

hwmon: (scmi) Register explicitly with Thermal Framework

Available sensors are enumerated and reported by the SCMI platform server
using a 16bit identification number; not all such sensors are of a type
supported by hwmon subsystem and, among the supported ones, only a subset
could be temperature sensors that have to be registered with the Thermal
Framework.
Potential clashes between hwmon channels indexes and the underlying real
sensors IDs do not play well with the hwmon<-->thermal bridge automatic
registration routines and could need a sensible number of fake dummy
sensors to be made up in order to keep indexes and IDs in sync.

Avoid to use the hwmon<-->thermal bridge dropping the HWMON_C_REGISTER_TZ
attribute and instead explicit register temperature sensors directly with
the Thermal Framework.

Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: linux-hwmon@vger.kernel.org
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://lore.kernel.org/r/20221031114018.59048-1-cristian.marussi@arm.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

cxl/region: Recycle region ids

At region creation time the next region-id is atomically cached so that
there is predictability of region device names. If that region is
destroyed and then a new one is created the region id increments. That
ends up looking like a memory leak, or is otherwise surprising that
identifiers roll forward even after destroying all previously created
regions.

Try to reuse rather than free old region ids at region release time.

While this fixes a cosmetic issue, the needlessly advancing memory
region-id gives the appearance of a memory leak, hence the "Fixes" tag,
but no "Cc: stable" tag.

Cc: Ben Widawsky <bwidawsk@kernel.org>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Fixes: 779dd20cfb56 ("cxl/region: Add region creation support")
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Link: https://lore.kernel.org/r/166752186062.947915.13200195701224993317.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

cxl/region: Fix 'distance' calculation with passthrough ports

When programming port decode targets, the algorithm wants to ensure that
two devices are compatible to be programmed as peers beneath a given
port. A compatible peer is a target that shares the same dport, and
where that target's interleave position also routes it to the same
dport. Compatibility is determined by the device's interleave position
being >= to distance. For example, if a given dport can only map every
Nth position then positions less than N away from the last target
programmed are incompatible.

The @distance for the host-bridge's cxl_port in a simple dual-ported
host-bridge configuration with 2 direct-attached devices is 1, i.e. An
x2 region divided by 2 dports to reach 2 region targets.

An x4 region under an x2 host-bridge would need 2 intervening switches
where the @distance at the host bridge level is 2 (x4 region divided by
2 switches to reach 4 devices).

However, the distance between peers underneath a single ported
host-bridge is always zero because there is no limit to the number of
devices that can be mapped. In other words, there are no decoders to
program in a passthrough, all descendants are mapped and distance only
starts matters for the intervening descendant ports of the passthrough
port.

Add tracking for the number of dports mapped to a port, and use that to
detect the passthrough case for calculating @distance.

Cc: <stable@vger.kernel.org>
Reported-by: Bobo WL <lmw.bobo@gmail.com>
Reported-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: http://lore.kernel.org/r/20221010172057.00001559@huawei.com
Fixes: 27b3f8d13830 ("cxl/region: Program target lists")
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Link: https://lore.kernel.org/r/166752185440.947915.6617495912508299445.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

tools/testing/cxl: Add a single-port host-bridge regression config

Jonathan reports that region creation fails when a single-port
host-bridge connects to a multi-port switch. Mock up that configuration
so a fix can be tested and regression tested going forward.

Reported-by: Bobo WL <lmw.bobo@gmail.com>
Reported-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: http://lore.kernel.org/r/20221010172057.00001559@huawei.com
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Link: https://lore.kernel.org/r/166752184838.947915.2167957540894293891.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

tools/testing/cxl: Fix some error exits

Fix a few typos where 'goto err_port' was used rather than the object
specific cleanup.

Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Link: https://lore.kernel.org/r/166752184255.947915.16163477849330181425.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

cxl/pmem: Fix cxl_pmem_region and cxl_memdev leak

When a cxl_nvdimm object goes through a ->remove() event (device
physically removed, nvdimm-bridge disabled, or nvdimm device disabled),
then any associated regions must also be disabled. As highlighted by the
cxl-create-region.sh test [1], a single device may host multiple
regions, but the driver was only tracking one region at a time. This
leads to a situation where only the last enabled region per nvdimm
device is cleaned up properly. Other regions are leaked, and this also
causes cxl_memdev reference leaks.

Fix the tracking by allowing cxl_nvdimm objects to track multiple region
associations.

Cc: <stable@vger.kernel.org>
Link: https://github.com/pmem/ndctl/blob/main/test/cxl-create-region.sh
Reported-by: Vishal Verma <vishal.l.verma@intel.com>
Fixes: 04ad63f086d1 ("cxl/region: Introduce cxl_pmem_region objects")
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Link: https://lore.kernel.org/r/166752183647.947915.2045230911503793901.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

cxl/region: Fix cxl_region leak, cleanup targets at region delete

When a region is deleted any targets that have been previously assigned
to that region hold references to it. Trigger those references to
drop by detaching all targets at unregister_region() time.

Otherwise that region object will leak as userspace has lost the ability
to detach targets once region sysfs is torn down.

Cc: <stable@vger.kernel.org>
Fixes: b9686e8c8e39 ("cxl/region: Enable the assignment of endpoint decoders to regions")
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Link: https://lore.kernel.org/r/166752183055.947915.17681995648556534844.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

cxl/region: Fix region HPA ordering validation

Some regions may not have any address space allocated. Skip them when
validating HPA order otherwise a crash like the following may result:

devm_cxl_add_region: cxl_acpi cxl_acpi.0: decoder3.4: created region9
BUG: kernel NULL pointer dereference, address: 0000000000000000
[..]
RIP: 0010:store_targetN+0x655/0x1740 [cxl_core]
[..]
Call Trace:
  <TASK>
  kernfs_fop_write_iter+0x144/0x200
  vfs_write+0x24a/0x4d0
  ksys_write+0x69/0xf0
  do_syscall_64+0x3a/0x90

store_targetN+0x655/0x1740:
alloc_region_ref at drivers/cxl/core/region.c:676
(inlined by) cxl_port_attach_region at drivers/cxl/core/region.c:850
(inlined by) cxl_region_attach at drivers/cxl/core/region.c:1290
(inlined by) attach_target at drivers/cxl/core/region.c:1410
(inlined by) store_targetN at drivers/cxl/core/region.c:1453

Cc: <stable@vger.kernel.org>
Fixes: 384e624bb211 ("cxl/region: Attach endpoint decoders")
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/166752182461.947915.497032805239915067.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

Merge tag 'xfs-6.1-fixes-4' of git://git./fs/xfs/xfs-linux

Pull xfs fixes from Darrick Wong:
"Dave and I had thought that this would be a very quiet cycle, but we
  thought wrong.

  At first there were the usual trickle of minor bugfixes, but then
  Zorro pulled -rc1 and noticed complaints about the stronger memcpy
  checks w.r.t. flex arrays.

  Analyzing how to fix that revealed a bunch of validation gaps in
  validating ondisk log items during recovery, and then a customer hit
  an infinite loop in the refcounting code on a corrupt filesystem.

  So. This largeish batch of fixes addresses all those problems, I hope.

  Summary:

   - Fix a UAF bug during log recovery

   - Fix memory leaks when mount fails

   - Detect corrupt bestfree information in a directory block

   - Fix incorrect return value type for the dax page fault handlers

   - Fix fortify complaints about memcpy of xfs log item objects

   - Strengthen inadequate validation of recovered log items

   - Fix incorrectly declared flex array in EFI log item structs

   - Log corrupt log items for debugging purposes

   - Fix infinite loop problems in the refcount code if the refcount
     btree node block keys are corrupt

   - Fix infinite loop problems in the refcount code if the refcount
     btree records suffer MSB bitflips

   - Add more sanity checking to continued defer ops to prevent
     overflows from one AG to the next or off EOFS"

* tag 'xfs-6.1-fixes-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (28 commits)
  xfs: rename XFS_REFC_COW_START to _COWFLAG
  xfs: fix uninitialized list head in struct xfs_refcount_recovery
  xfs: fix agblocks check in the cow leftover recovery function
  xfs: check record domain when accessing refcount records
  xfs: remove XFS_FIND_RCEXT_SHARED and _COW
  xfs: refactor domain and refcount checking
  xfs: report refcount domain in tracepoints
  xfs: track cow/shared record domains explicitly in xfs_refcount_irec
  xfs: refactor refcount record usage in xchk_refcountbt_rec
  xfs: dump corrupt recovered log intent items to dmesg consistently
  xfs: move _irec structs to xfs_types.h
  xfs: actually abort log recovery on corrupt intent-done log items
  xfs: check deferred refcount op continuation parameters
  xfs: refactor all the EFI/EFD log item sizeof logic
  xfs: create a predicate to verify per-AG extents
  xfs: fix memcpy fortify errors in EFI log format copying
  xfs: make sure aglen never goes negative in xfs_refcount_adjust_extents
  xfs: fix memcpy fortify errors in RUI log format copying
  xfs: fix memcpy fortify errors in CUI log format copying
  xfs: fix memcpy fortify errors in BUI log format copying
  ...

Merge tag 'landlock-6.1-rc4' of git://git./linux/kernel/git/mic/linux

Pull landlock fix from Mickaël Salaün:
"Fix the test build for some distros"

* tag 'landlock-6.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
selftests/landlock: Build without static libraries

Merge tag 'hardening-v6.1-rc4' of git://git./linux/kernel/git/kees/linux

Pull hardening fix from Kees Cook:

- Correctly report struct member size on memcpy overflow (Kees Cook)

* tag 'hardening-v6.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
fortify: Capture __bos() results in const temp vars

Merge tag 'efi-fixes-for-v6.1-2' of git://git./linux/kernel/git/efi/efi

Pull EFI fixes from Ard Biesheuvel:

- A pair of tweaks to the EFI random seed code so that externally
   provided version of this config table are handled more robustly

- Another fix for the v6.0 EFI variable refactor that turned out to
   break Apple machines which don't provide QueryVariableInfo()

- Add some guard rails to the EFI runtime service call wrapper so we
   can recover from synchronous exceptions caused by firmware

* tag 'efi-fixes-for-v6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
  arm64: efi: Recover from synchronous exceptions occurring in firmware
  efi: efivars: Fix variable writes with unsupported query_variable_store()
  efi: random: Use 'ACPI reclaim' memory for random seed
  efi: random: reduce seed size to 32 bytes
  efi/tpm: Pass correct address to memblock_reserve

Merge tag 'soc-fixes-6.1-2' of git://git./linux/kernel/git/soc/soc

Pull ARM SoC fixes from Arnd Bergmann:
"There are not a lot of important fixes for the soc tree yet this time,
  but it's time to upstream what I got so far:

   - DT Fixes for Arm Juno and ST-Ericsson Ux500 to add missing critical
     temperature points

   - A number of fixes for the Arm SCMI firmware, addressing correctness
     issues in the code, in particular error handling and resource
     leaks.

   - One error handling fix for the new i.MX93 power domain driver

   - Several devicetree fixes for NXP i.MX6/8/9 and Layerscape chips,
     fixing incorrect or missing DT properties for MDIO controller
     nodes, CPLD, USB and regulators for various boards, as well as some
     fixes for DT schema checks.

   - MAINTAINERS file updates for HiSilicon LPC Bus and Broadcom git
     URLs"

* tag 'soc-fixes-6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (26 commits)
  arm64: dts: juno: Add thermal critical trip points
  firmware: arm_scmi: Fix deferred_tx_wq release on error paths
  firmware: arm_scmi: Fix devres allocation device in virtio transport
  firmware: arm_scmi: Make Rx chan_setup fail on memory errors
  firmware: arm_scmi: Make tx_prepare time out eventually
  firmware: arm_scmi: Suppress the driver's bind attributes
  firmware: arm_scmi: Cleanup the core driver removal callback
  MAINTAINERS: Update HiSilicon LPC BUS Driver maintainer
  ARM: dts: ux500: Add trips to battery thermal zones
  arm64: dts: ls208xa: specify clock frequencies for the MDIO controllers
  arm64: dts: ls1088a: specify clock frequencies for the MDIO controllers
  arm64: dts: lx2160a: specify clock frequencies for the MDIO controllers
  soc: imx: imx93-pd: Fix the error handling path of imx93_pd_probe()
  arm64: dts: imx93: correct gpio-ranges
  arm64: dts: imx93: correct s4mu interrupt names
  dt-bindings: power: gpcv2: add power-domains property
  arm64: dts: imx8: correct clock order
  ARM: dts: imx6dl-yapp4: Do not allow PM to switch PU regulator off on Q/QP
  ARM: dts: imx6qdl-gw59{10,13}: fix user pushbutton GPIO offset
  arm64: dts: imx8mn: Correct the usb power domain
  ...

x86/cpu: Add several Intel server CPU model numbers

These servers are all on the public versions of the roadmap. The model
numbers for Grand Ridge, Granite Rapids, and Sierra Forest were included
in the September 2022 edition of the Instruction Set Extensions document.

Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lore.kernel.org/r/20221103203310.5058-1-tony.luck@intel.com

phy: sunplus: Fix an IS_ERR() vs NULL bug in sp_usb_phy_probe

The devm_ioremap() function returns NULL on error, it doesn't return
error pointers.

Fixes: 99d9ccd973852 ("phy: usb: Add USB2.0 phy driver for Sunplus SP7021")
Signed-off-by: Peng Wu <wupeng58@huawei.com>
Link: https://lore.kernel.org/r/20220911060053.123594-1-wupeng58@huawei.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

Merge tag 'drm-fixes-2022-11-04-1' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
"This is the weekly fixes for rc4. Misc fixes across rockchip, imx,
  amdgpu and i915.

  The biggest change is for amdkfd where the trap handler needs an
  updated fw from a header which makes it a bit larger. I hadn't noticed
  this particular file before so I'm going to figure out what the magic
  is for, but the fix should be fine for now.

  amdgpu:
   - DCN 3.1.4 fixes
   - DCN 3.2.x fixes
   - GC 11.x fixes
   - Virtual display fix
   - Fail suspend if resources can't be evicted
   - SR-IOV fix
   - Display PSR fix

  amdkfd:
   - Fix possible NULL pointer deref
   - GC 11.x trap handler fix

  i915:
   - Add locking around DKL PHY register accesses
   - Stop abusing swiotlb_max_segment
   - Filter out invalid outputs more sensibly
   - Setup DDC fully before output init
   - Simplify intel_panel_add_edid_alt_fixed_modes()
   - Grab mode_config.mutex during LVDS init to avoid WARNs

  rockchip:
   - fix probing issues
   - fix framebuffer without iommu
   - fix vop selection
   - fix NULL ptr access

  imx:
   - Fix Kconfig
   - fix mode_valid function"

* tag 'drm-fixes-2022-11-04-1' of git://anongit.freedesktop.org/drm/drm: (35 commits)
  drm/amdkfd: update GFX11 CWSR trap handler
  drm/amd/display: Investigate tool reported FCLK P-state deviations
  drm/amd/display: Add DSC delay factor workaround
  drm/amd/display: Round up DST_after_scaler to nearest int
  drm/amd/display: Use forced DSC bpp in DML
  drm/amd/display: Fix DCN32 DSC delay calculation
  drm/amdgpu: Disable GPU reset on SRIOV before remove pci.
  drm/amdgpu: disable GFXOFF during compute for GFX11
  drm/amd: Fail the suspend if resources can't be evicted
  drm/amdkfd: Fix NULL pointer dereference in svm_migrate_to_ram()
  drm/amdgpu: correct MES debugfs versions
  drm/amdgpu: set fb_modifiers_not_supported in vkms
  drm/amd/display: cursor update command incomplete
  drm/amd/display: Enable timing sync on DCN32
  drm/amd/display: Set memclk levels to be at least 1 for dcn32
  drm/amd/display: Update latencies on DCN321
  drm/amd/display: Limit dcn32 to 1950Mhz display clock
  drm/amd/display: Ignore Cable ID Feature
  drm/amd/display: Update DSC capabilitie for DCN314
  drm/imx: imx-tve: Fix return type of imx_tve_connector_mode_valid
  ...

Merge tag 'clk-fixes-for-linus' of git://git./linux/kernel/git/clk/linux

Pull clk fixes from Stephen Boyd:
"Fixes in clk drivers and some clk rate range fixes in the core as
  well:

   - Make sure the struct clk_rate_request is more sane

   - Remove a WARN_ON that was triggering for clks with no parents that
     can change frequency

   - Fix bad i2c bus transactions on Renesas rs9

   - Actually return an error in clk_mt8195_topck_probe() on an error
     path

   - Keep the GPU memories powered while the clk isn't enabled on
     Qualcomm's sc7280 SoC

   - Fix the parent clk for HSCIF modules on Renesas' R-Car V4H SoC"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: qcom: Update the force mem core bit for GPU clocks
  clk: Initialize max_rate in struct clk_rate_request
  clk: Initialize the clk_rate_request even if clk_core is NULL
  clk: Remove WARN_ON NULL parent in clk_core_init_rate_req()
  clk: renesas: r8a779g0: Fix HSCIF parent clocks
  clk: renesas: r8a779g0: Add SASYNCPER clocks
  clk: mediatek: clk-mt8195-topckgen: Fix error return code in clk_mt8195_topck_probe()
  clk: sifive: select by default if SOC_SIFIVE
  clk: rs9: Fix I2C accessors

mm/slab: remove !CONFIG_TRACING variants of kmalloc_[node_]trace()

For !CONFIG_TRACING kernels, the kmalloc() implementation tries (in cases where
the allocation size is build-time constant) to save a function call, by
inlining kmalloc_trace() to a kmem_cache_alloc() call.

However since commit 6edf2576a6cc ("mm/slub: enable debugging memory wasting of
kmalloc") this path now fails to pass the original request size to be
eventually recorded (for kmalloc caches with debugging enabled).

We could adjust the code to call __kmem_cache_alloc_node() as the
CONFIG_TRACING variant, but that would as a result inline a call with 5
parameters, bloating the kmalloc() call sites. The cost of extra function
call (to kmalloc_trace()) seems like a lesser evil.

It also appears that the !CONFIG_TRACING variant is incompatible with upcoming
hardening efforts [1] so it's easier if we just remove it now. Kernels with no
tracing are rare these days and the benefit is dubious anyway.

[1] https://lore.kernel.org/linux-mm/20221101222520.never.109-kees@kernel.org/T/#m20ecf14390e406247bde0ea9cce368f469c539ed

Link: https://lore.kernel.org/all/097d8fba-bd10-a312-24a3-a4068c4f424c@suse.cz/
Suggested-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>

tracing: kprobe: Fix memory leak in test_gen_kprobe/kretprobe_cmd()

test_gen_kprobe_cmd() only free buf in fail path, hence buf will leak
when there is no failure. Move kfree(buf) from fail path to common path
to prevent the memleak. The same reason and solution in
test_gen_kretprobe_cmd().

unreferenced object 0xffff888143b14000 (size 2048):
  comm "insmod", pid 52490, jiffies 4301890980 (age 40.553s)
  hex dump (first 32 bytes):
    70 3a 6b 70 72 6f 62 65 73 2f 67 65 6e 5f 6b 70  p:kprobes/gen_kp
    72 6f 62 65 5f 74 65 73 74 20 64 6f 5f 73 79 73  robe_test do_sys
  backtrace:
    [<000000006d7b836b>] kmalloc_trace+0x27/0xa0
    [<0000000009528b5b>] 0xffffffffa059006f
    [<000000008408b580>] do_one_initcall+0x87/0x2a0
    [<00000000c4980a7e>] do_init_module+0xdf/0x320
    [<00000000d775aad0>] load_module+0x3006/0x3390
    [<00000000e9a74b80>] __do_sys_finit_module+0x113/0x1b0
    [<000000003726480d>] do_syscall_64+0x35/0x80
    [<000000003441e93b>] entry_SYSCALL_64_after_hwframe+0x46/0xb0

Link: https://lore.kernel.org/all/20221102072954.26555-1-shangxiaojing@huawei.com/
Fixes: 64836248dda2 ("tracing: Add kprobe event command generation test module")
Cc: stable@vger.kernel.org
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>

tracing/fprobe: Fix to check whether fprobe is registered correctly

Since commit ab51e15d535e ("fprobe: Introduce FPROBE_FL_KPROBE_SHARED flag
for fprobe") introduced fprobe_kprobe_handler() for fprobe::ops::func,
unregister_fprobe() fails to unregister the registered if user specifies
FPROBE_FL_KPROBE_SHARED flag.
Moreover, __register_ftrace_function() is possible to change the
ftrace_ops::func, thus we have to check fprobe::ops::saved_func instead.

To check it correctly, it should confirm the fprobe::ops::saved_func is
either fprobe_handler() or fprobe_kprobe_handler().

Link: https://lore.kernel.org/all/166677683946.1459107.15997653945538644683.stgit@devnote3/
Fixes: cad9931f64dc ("fprobe: Add ftrace based probe APIs")
Cc: stable@vger.kernel.org
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>

fprobe: Check rethook_alloc() return in rethook initialization

Check if fp->rethook succeeded to be allocated. Otherwise, if
rethook_alloc() fails, then we end up dereferencing a NULL pointer in
rethook_add_node().

Link: https://lore.kernel.org/all/20221025031209.954836-1-rafaelmendsr@gmail.com/
Fixes: 5b0ab78998e3 ("fprobe: Add exit_handler support")
Cc: stable@vger.kernel.org
Signed-off-by: Rafael Mendonca <rafaelmendsr@gmail.com>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>

kprobe: reverse kp->flags when arm_kprobe failed

In aggregate kprobe case, when arm_kprobe failed,
we need set the kp->flags with KPROBE_FLAG_DISABLED again.
If not, the 'kp' kprobe will been considered as enabled
but it actually not enabled.

Link: https://lore.kernel.org/all/20220902155820.34755-1-liq3ea@163.com/
Fixes: 12310e343755 ("kprobes: Propagate error from arm_kprobe_ftrace()")
Cc: stable@vger.kernel.org
Signed-off-by: Li Qiang <liq3ea@163.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>

Merge tag 'ata-6.1-rc4' of git://git./linux/kernel/git/dlemoal/libata

Pull ata fixes from Damien Le Moal:
"Two driver fixes:

   - Fix the PIO mode configuration of the pdc20230 (pata_legacy)
     driver. This also removes a compilation warning with clang and W=1
     (Sergey)

   - Fix devm_platform_ioremap_resource() return value check in the
     palmld driver (Yang)"

* tag 'ata-6.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
  ata: palmld: fix return value check in palmld_pata_probe()
  ata: pata_legacy: fix pdc20230_set_piomode()

Merge tag 'drm-intel-fixes-2022-11-03' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Add locking around DKL PHY register accesses (Imre Deak)
- Stop abusing swiotlb_max_segment (Robert Beckett)
- Filter out invalid outputs more sensibly (Ville Syrjälä)
- Setup DDC fully before output init (Ville Syrjälä)
- Simplify intel_panel_add_edid_alt_fixed_modes() (Ville Syrjälä)
- Grab mode_config.mutex during LVDS init to avoid WARNs (Ville Syrjälä)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Y2ODlCGM4nACmzsJ@tursulin-desk

Merge tag 'amd-drm-fixes-6.1-2022-11-02' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-6.1-2022-11-02:

amdgpu:
- DCN 3.1.4 fixes
- DCN 3.2.x fixes
- GC 11.x fixes
- Virtual display fix
- Fail suspend if resources can't be evicted
- SR-IOV fix
- Display PSR fix

amdkfd:
- Fix possible NULL pointer deref
- GC 11.x trap handler fix

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221103023257.10446-1-alexander.deucher@amd.com

Merge tag 'fuse-fixes-6.1-rc4' of git://git./linux/kernel/git/mszeredi/fuse

Pull fuse fixes from Miklos Szeredi:
"Fix two rarely triggered but long-standing issues"

* tag 'fuse-fixes-6.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: add file_modified() to fallocate
fuse: fix readdir cache race

cxl/pmem: Use size_add() against integer overflow

"struct_size() + n" may cause a integer overflow,
use size_add() to handle it.

Signed-off-by: Yu Zhe <yuzhe@nfschina.com>
Link: https://lore.kernel.org/r/20220927070247.23148-1-yuzhe@nfschina.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

Merge tag 'for-6.1-rc3-tag' of git://git./linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:
"A batch of error handling fixes for resource leaks, fixes for nowait
  mode in combination with direct and buffered IO:

   - direct IO + dsync + nowait could miss a sync of the file after
     write, add handling for this combination

   - buffered IO + nowait should not fail with ENOSPC, only blocking IO
     could determine that

   - error handling fixes:
      - fix inode reserve space leak due to nowait buffered write
      - check the correct variable after allocation (direct IO submit)
      - fix inode list leak during backref walking
      - fix ulist freeing in self tests"

* tag 'for-6.1-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: fix inode reserve space leak due to nowait buffered write
  btrfs: fix nowait buffered write returning -ENOSPC
  btrfs: remove pointless and double ulist frees in error paths of qgroup tests
  btrfs: fix ulist leaks in error paths of qgroup self tests
  btrfs: fix inode list leak during backref walking at find_parent_nodes()
  btrfs: fix inode list leak during backref walking at resolve_indirect_refs()
  btrfs: fix lost file sync on direct IO write with nowait and dsync iocb
  btrfs: fix a memory allocation failure test in btrfs_submit_direct

arm64: cpufeature: Fix the visibility of compat hwcaps

Commit 237405ebef58 ("arm64: cpufeature: Force HWCAP to be based on the
sysreg visible to user-space") forced the hwcaps to use sanitised
user-space view of the id registers. However, the ID register structures
used to select few compat cpufeatures (vfp, crc32, ...) are masked and
hence such hwcaps do not appear in /proc/cpuinfo anymore for PER_LINUX32
personality.

Add the ID register structures explicitly and set the relevant entry as
visible. As these ID registers are now of type visible so make them
available in 64-bit userspace by making necessary changes in register
emulation logic and documentation.

While at it, update the comment for structure ftr_generic_32bits[] which
lists the ID register that use it.

Fixes: 237405ebef58 ("arm64: cpufeature: Force HWCAP to be based on the sysreg visible to user-space")
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-by: James Morse <james.morse@arm.com>
Signed-off-by: Amit Daniel Kachhap <amit.kachhap@arm.com>
Link: https://lore.kernel.org/r/20221103082232.19189-1-amit.kachhap@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

Merge tag 'linux-kselftest-fixes-6.1-rc4' of git://git./linux/kernel/git/shuah/linux-kselftest

Pull Kselftest fixes from Shuah Khan:
"Fixes to the pidfd test"

* tag 'linux-kselftest-fixes-6.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests/pidfd_test: Remove the erroneous ','
  selftests: pidfd: Fix compling warnings
  ksefltests: pidfd: Fix wait_states: Test terminated by timeout

Merge tag 'net-6.1-rc4' of git://git./linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
"Including fixes from bluetooth and netfilter.

  Current release - regressions:

   - net: several zerocopy flags fixes

   - netfilter: fix possible memory leak in nf_nat_init()

   - openvswitch: add missing .resv_start_op

  Previous releases - regressions:

   - neigh: fix null-ptr-deref in neigh_table_clear()

   - sched: fix use after free in red_enqueue()

   - dsa: fall back to default tagger if we can't load the one from DT

   - bluetooth: fix use-after-free in l2cap_conn_del()

  Previous releases - always broken:

   - netfilter: netlink notifier might race to release objects

   - nfc: fix potential memory leak of skb

   - bluetooth: fix use-after-free caused by l2cap_reassemble_sdu

   - bluetooth: use skb_put to set length

   - eth: tun: fix bugs for oversize packet when napi frags enabled

   - eth: lan966x: fixes for when MTU is changed

   - eth: dwmac-loongson: fix invalid mdio_node"

* tag 'net-6.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (53 commits)
  vsock: fix possible infinite sleep in vsock_connectible_wait_data()
  vsock: remove the unused 'wait' in vsock_connectible_recvmsg()
  ipv6: fix WARNING in ip6_route_net_exit_late()
  bridge: Fix flushing of dynamic FDB entries
  net, neigh: Fix null-ptr-deref in neigh_table_clear()
  net/smc: Fix possible leaked pernet namespace in smc_init()
  stmmac: dwmac-loongson: fix invalid mdio_node
  ibmvnic: Free rwi on reset success
  net: mdio: fix undefined behavior in bit shift for __mdiobus_register
  Bluetooth: L2CAP: Fix attempting to access uninitialized memory
  Bluetooth: L2CAP: Fix l2cap_global_chan_by_psm
  Bluetooth: L2CAP: Fix accepting connection request for invalid SPSM
  Bluetooth: hci_conn: Fix not restoring ISO buffer count on disconnect
  Bluetooth: L2CAP: Fix memory leak in vhci_write
  Bluetooth: L2CAP: fix use-after-free in l2cap_conn_del()
  Bluetooth: virtio_bt: Use skb_put to set length
  Bluetooth: hci_conn: Fix CIS connection dst_type handling
  Bluetooth: L2CAP: Fix use-after-free caused by l2cap_reassemble_sdu
  netfilter: ipset: enforce documented limit to prevent allocating huge memory
  isdn: mISDN: netjet: fix wrong check of device registration
  ...

Merge tag 'powerpc-6.1-4' of git://git./linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:

- Fix an endian thinko in the asm-generic compat_arg_u64() which led to
   syscall arguments being swapped for some compat syscalls.

- Fix syscall wrapper handling of syscalls with 64-bit arguments on
   32-bit kernels, which led to syscall arguments being misplaced.

- A build fix for amdgpu on Book3E with AltiVec disabled.

Thanks to Andreas Schwab, Christian Zigotzky, and Arnd Bergmann.

* tag 'powerpc-6.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/32: Select ARCH_SPLIT_ARG64
  powerpc/32: fix syscall wrappers with 64-bit arguments
  asm-generic: compat: fix compat_arg_u64() and compat_arg_u64_dual()
  powerpc/64e: Fix amdgpu build on Book3E w/o AltiVec

mm/slab_common: repair kernel-doc for __ksize()

Commit 445d41d7a7c1 ("Merge branch 'slab/for-6.1/kmalloc_size_roundup' into
slab/for-next") resolved a conflict of two concurrent changes to __ksize().

However, it did not adjust the kernel-doc comment of __ksize(), while the
name of the argument to __ksize() was renamed.

Hence, ./scripts/ kernel-doc -none mm/slab_common.c warns about it.

Adjust the kernel-doc comment for __ksize() for make W=1 happiness.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Acked-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>

arm64: efi: Recover from synchronous exceptions occurring in firmware

Unlike x86, which has machinery to deal with page faults that occur
during the execution of EFI runtime services, arm64 has nothing like
that, and a synchronous exception raised by firmware code brings down
the whole system.

With more EFI based systems appearing that were not built to run Linux
(such as the Windows-on-ARM laptops based on Qualcomm SOCs), as well as
the introduction of PRM (platform specific firmware routines that are
callable just like EFI runtime services), we are more likely to run into
issues of this sort, and it is much more likely that we can identify and
work around such issues if they don't bring down the system entirely.

Since we already use a EFI runtime services call wrapper in assembler,
we can quite easily add some code that captures the execution state at
the point where the call is made, allowing us to revert to this state
and proceed execution if the call triggered a synchronous exception.

Given that the kernel and the firmware don't share any data structures
that could end up in an indeterminate state, we can happily continue
running, as long as we mark the EFI runtime services as unavailable from
that point on.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>

KVM: x86: Fix a typo about the usage of kvcalloc()

Swap the 1st and 2nd arguments to be consistent with the usage of
kvcalloc().

Fixes: c9b8fecddb5b ("KVM: use kvcalloc for array allocations")
Signed-off-by: Liao Chang <liaochang1@huawei.com>
Message-Id: <20221103011749.139262-1-liaochang1@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

KVM: x86: Use SRCU to protect zap in __kvm_set_or_clear_apicv_inhibit()

kvm_zap_gfn_range() must be called in an SRCU read-critical section, but
there is no SRCU annotation in __kvm_set_or_clear_apicv_inhibit(). This
can lead to the following warning via
kvm_arch_vcpu_ioctl_set_guest_debug() if a Shadow MMU is in use (TDP
MMU disabled or nesting):

[ 1416.659809] =============================
[ 1416.659810] WARNING: suspicious RCU usage
[ 1416.659839] 6.1.0-dbg-DEV #1 Tainted: G S        I
[ 1416.659853] -----------------------------
[ 1416.659854] include/linux/kvm_host.h:954 suspicious rcu_dereference_check() usage!
[ 1416.659856]
...
[ 1416.659904]  dump_stack_lvl+0x84/0xaa
[ 1416.659910]  dump_stack+0x10/0x15
[ 1416.659913]  lockdep_rcu_suspicious+0x11e/0x130
[ 1416.659919]  kvm_zap_gfn_range+0x226/0x5e0
[ 1416.659926]  ? kvm_make_all_cpus_request_except+0x18b/0x1e0
[ 1416.659935]  __kvm_set_or_clear_apicv_inhibit+0xcc/0x100
[ 1416.659940]  kvm_arch_vcpu_ioctl_set_guest_debug+0x350/0x390
[ 1416.659946]  kvm_vcpu_ioctl+0x2fc/0x620
[ 1416.659955]  __se_sys_ioctl+0x77/0xc0
[ 1416.659962]  __x64_sys_ioctl+0x1d/0x20
[ 1416.659965]  do_syscall_64+0x3d/0x80
[ 1416.659969]  entry_SYSCALL_64_after_hwframe+0x63/0xcd

Always take the KVM SRCU read lock in __kvm_set_or_clear_apicv_inhibit()
to protect the GFN to memslot translation. The SRCU read lock is not
technically required when no Shadow MMUs are in use, since the TDP MMU
walks the paging structures from the roots and does not need to look up
GFN translations in the memslots, but make the SRCU locking
unconditional for simplicty.

In most cases, the SRCU locking is taken care of in the vCPU run loop,
but when called through other ioctls (such as KVM_SET_GUEST_DEBUG)
there is no srcu_read_lock.

Tested: ran tools/testing/selftests/kvm/x86_64/debug_regs on a DBG
build. This patch causes the suspicious RCU warning to disappear.
Note that the warning is hit in __kvm_zap_rmaps(), so
kvm_memslots_have_rmaps() must return true in order for this to
repro (i.e. the TDP MMU must be off or nesting in use.)

Reported-by: Greg Thelen <gthelen@google.com>
Fixes: 36222b117e36 ("KVM: x86: don't disable APICv memslot when inhibited")
Signed-off-by: Ben Gardon <bgardon@google.com>
Message-Id: <20221102205359.1260980-1-bgardon@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Merge branch 'vsock-remove-an-unused-variable-and-fix-infinite-sleep'

Dexuan Cui says:

====================
vsock: remove an unused variable and fix infinite sleep

Patch 1 removes the unused 'wait' variable.
Patch 2 fixes an infinite sleep issue reported by a hv_sock user.
====================

Link: https://lore.kernel.org/r/20221101021706.26152-1-decui@microsoft.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

vsock: fix possible infinite sleep in vsock_connectible_wait_data()

Currently vsock_connectible_has_data() may miss a wakeup operation
between vsock_connectible_has_data() == 0 and the prepare_to_wait().

Fix the race by adding the process to the wait queue before checking
vsock_connectible_has_data().

Fixes: b3f7fd54881b ("af_vsock: separate wait data loop")
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reported-by: Frédéric Dalleau <frederic.dalleau@docker.com>
Tested-by: Frédéric Dalleau <frederic.dalleau@docker.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

vsock: remove the unused 'wait' in vsock_connectible_recvmsg()

Remove the unused variable introduced by 19c1b90e1979.

Fixes: 19c1b90e1979 ("af_vsock: separate receive data loop")
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

x86/xen: simplify sysenter and syscall setup

xen_enable_sysenter() and xen_enable_syscall() can be simplified a lot.

While at it, switch to use cpu_feature_enabled() instead of
boot_cpu_has().

Signed-off-by: Juergen Gross <jgross@suse.com>

x86/xen: silence smatch warning in pmu_msr_chk_emulated()

Commit 8714f7bcd3c2 ("xen/pv: add fault recovery control to pmu msr
accesses") introduced code resulting in a warning issued by the smatch
static checker, claiming to use an uninitialized variable.

This is a false positive, but work around the warning nevertheless.

Fixes: 8714f7bcd3c2 ("xen/pv: add fault recovery control to pmu msr accesses")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>

Merge tag 'drm-misc-fixes-2022-11-02-1' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

drm-misc-fixes for v6.1-rc4:
- Small fixes to make rockchip work better.
- Fix imx Kconfig.
- Small fix to imx' mode_valid.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/5476ef52-f91a-c2bc-f4b2-d338216d1e11@linux.intel.com

ftrace: Fix use-after-free for dynamic ftrace_ops

KASAN reported a use-after-free with ftrace ops [1]. It was found from
vmcore that perf had registered two ops with the same content
successively, both dynamic. After unregistering the second ops, a
use-after-free occurred.

In ftrace_shutdown(), when the second ops is unregistered, the
FTRACE_UPDATE_CALLS command is not set because there is another enabled
ops with the same content. Also, both ops are dynamic and the ftrace
callback function is ftrace_ops_list_func, so the
FTRACE_UPDATE_TRACE_FUNC command will not be set. Eventually the value
of 'command' will be 0 and ftrace_shutdown() will skip the rcu
synchronization.

However, ftrace may be activated. When the ops is released, another CPU
may be accessing the ops. Add the missing synchronization to fix this
problem.

[1]
BUG: KASAN: use-after-free in __ftrace_ops_list_func kernel/trace/ftrace.c:7020 [inline]
BUG: KASAN: use-after-free in ftrace_ops_list_func+0x2b0/0x31c kernel/trace/ftrace.c:7049
Read of size 8 at addr ffff56551965bbc8 by task syz-executor.2/14468

CPU: 1 PID: 14468 Comm: syz-executor.2 Not tainted 5.10.0 #7
Hardware name: linux,dummy-virt (DT)
Call trace:
dump_backtrace+0x0/0x40c arch/arm64/kernel/stacktrace.c:132
show_stack+0x30/0x40 arch/arm64/kernel/stacktrace.c:196
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1b4/0x248 lib/dump_stack.c:118
print_address_description.constprop.0+0x28/0x48c mm/kasan/report.c:387
__kasan_report mm/kasan/report.c:547 [inline]
kasan_report+0x118/0x210 mm/kasan/report.c:564
check_memory_region_inline mm/kasan/generic.c:187 [inline]
__asan_load8+0x98/0xc0 mm/kasan/generic.c:253
__ftrace_ops_list_func kernel/trace/ftrace.c:7020 [inline]
ftrace_ops_list_func+0x2b0/0x31c kernel/trace/ftrace.c:7049
ftrace_graph_call+0x0/0x4
__might_sleep+0x8/0x100 include/linux/perf_event.h:1170
__might_fault mm/memory.c:5183 [inline]
__might_fault+0x58/0x70 mm/memory.c:5171
do_strncpy_from_user lib/strncpy_from_user.c:41 [inline]
strncpy_from_user+0x1f4/0x4b0 lib/strncpy_from_user.c:139
getname_flags+0xb0/0x31c fs/namei.c:149
getname+0x2c/0x40 fs/namei.c:209
[...]

Allocated by task 14445:
kasan_save_stack+0x24/0x50 mm/kasan/common.c:48
kasan_set_track mm/kasan/common.c:56 [inline]
__kasan_kmalloc mm/kasan/common.c:479 [inline]
__kasan_kmalloc.constprop.0+0x110/0x13c mm/kasan/common.c:449
kasan_kmalloc+0xc/0x14 mm/kasan/common.c:493
kmem_cache_alloc_trace+0x440/0x924 mm/slub.c:2950
kmalloc include/linux/slab.h:563 [inline]
kzalloc include/linux/slab.h:675 [inline]
perf_event_alloc.part.0+0xb4/0x1350 kernel/events/core.c:11230
perf_event_alloc kernel/events/core.c:11733 [inline]
__do_sys_perf_event_open kernel/events/core.c:11831 [inline]
__se_sys_perf_event_open+0x550/0x15f4 kernel/events/core.c:11723
__arm64_sys_perf_event_open+0x6c/0x80 kernel/events/core.c:11723
[...]

Freed by task 14445:
kasan_save_stack+0x24/0x50 mm/kasan/common.c:48
kasan_set_track+0x24/0x34 mm/kasan/common.c:56
kasan_set_free_info+0x20/0x40 mm/kasan/generic.c:358
__kasan_slab_free.part.0+0x11c/0x1b0 mm/kasan/common.c:437
__kasan_slab_free mm/kasan/common.c:445 [inline]
kasan_slab_free+0x2c/0x40 mm/kasan/common.c:446
slab_free_hook mm/slub.c:1569 [inline]
slab_free_freelist_hook mm/slub.c:1608 [inline]
slab_free mm/slub.c:3179 [inline]
kfree+0x12c/0xc10 mm/slub.c:4176
perf_event_alloc.part.0+0xa0c/0x1350 kernel/events/core.c:11434
perf_event_alloc kernel/events/core.c:11733 [inline]
__do_sys_perf_event_open kernel/events/core.c:11831 [inline]
__se_sys_perf_event_open+0x550/0x15f4 kernel/events/core.c:11723
[...]

Link: https://lore.kernel.org/linux-trace-kernel/20221103031010.166498-1-lihuafei1@huawei.com
Fixes: edb096e00724f ("ftrace: Fix memleak when unregistering dynamic ops when tracing disabled")
Cc: stable@vger.kernel.org
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Li Huafei <lihuafei1@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

ring-buffer: Check for NULL cpu_buffer in ring_buffer_wake_waiters()

On some machines the number of listed CPUs may be bigger than the actual
CPUs that exist. The tracing subsystem allocates a per_cpu directory with
access to the per CPU ring buffer via a cpuX file. But to save space, the
ring buffer will only allocate buffers for online CPUs, even though the
CPU array will be as big as the nr_cpu_ids.

With the addition of waking waiters on the ring buffer when closing the
file, the ring_buffer_wake_waiters() now needs to make sure that the
buffer is allocated (with the irq_work allocated with it) before trying to
wake waiters, as it will cause a NULL pointer dereference.

While debugging this, I added a NULL check for the buffer itself (which is
OK to do), and also NULL pointer checks against buffer->buffers (which is
not fine, and will WARN) as well as making sure the CPU number passed in
is within the nr_cpu_ids (which is also not fine if it isn't).

Link: https://lore.kernel.org/all/87h6zklb6n.wl-tiwai@suse.de/
Link: https://lore.kernel.org/all/CAM6Wdxc0KRJMXVAA0Y=u6Jh2V=uWB-_Fn6M4xRuNppfXzL1mUg@mail.gmail.com/
Link: https://lkml.kernel.org/linux-trace-kernel/20221101191009.1e7378c8@rorschach.local.home
Cc: stable@vger.kernel.org
Cc: Steven Noonan <steven.noonan@gmail.com>
Bugzilla: https://bugzilla.opensuse.org/show_bug.cgi?id=1204705
Reported-by: Takashi Iwai <tiwai@suse.de>
Reported-by: Roland Ruckerbauer <roland.rucky@gmail.com>
Fixes: f3ddb74ad079 ("tracing: Wake up ring buffer waiters on closing of the file")
Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

ipv6: fix WARNING in ip6_route_net_exit_late()

During the initialization of ip6_route_net_init_late(), if file
ipv6_route or rt6_stats fails to be created, the initialization is
successful by default. Therefore, the ipv6_route or rt6_stats file
doesn't be found during the remove in ip6_route_net_exit_late(). It
will cause WRNING.

The following is the stack information:
name 'rt6_stats'
WARNING: CPU: 0 PID: 9 at fs/proc/generic.c:712 remove_proc_entry+0x389/0x460
Modules linked in:
Workqueue: netns cleanup_net
RIP: 0010:remove_proc_entry+0x389/0x460
PKRU: 55555554
Call Trace:
<TASK>
ops_exit_list+0xb0/0x170
cleanup_net+0x4ea/0xb00
process_one_work+0x9bf/0x1710
worker_thread+0x665/0x1080
kthread+0x2e4/0x3a0
ret_from_fork+0x1f/0x30
</TASK>

Fixes: cdb1876192db ("[NETNS][IPV6] route6 - create route6 proc files for the namespace")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20221102020610.351330-1-shaozhengchao@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

bridge: Fix flushing of dynamic FDB entries

The following commands should result in all the dynamic FDB entries
being flushed, but instead all the non-local (non-permanent) entries are
flushed:

# bridge fdb add 00:aa:bb:cc:dd:ee dev dummy1 master static
# bridge fdb add 00:11:22:33:44:55 dev dummy1 master dynamic
# ip link set dev br0 type bridge fdb_flush
# bridge fdb show brport dummy1
00:00:00:00:00:01 master br0 permanent
33:33:00:00:00:01 self permanent
01:00:5e:00:00:01 self permanent

This is because br_fdb_flush() works with FDB flags and not the
corresponding enumerator values. Fix by passing the FDB flag instead.

After the fix:

# bridge fdb add 00:aa:bb:cc:dd:ee dev dummy1 master static
# bridge fdb add 00:11:22:33:44:55 dev dummy1 master dynamic
# ip link set dev br0 type bridge fdb_flush
# bridge fdb show brport dummy1
00:aa:bb:cc:dd:ee master br0 static
00:00:00:00:00:01 master br0 permanent
33:33:00:00:00:01 self permanent
01:00:5e:00:00:01 self permanent

Fixes: 1f78ee14eeac ("net: bridge: fdb: add support for fine-grained flushing")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://lore.kernel.org/r/20221101185753.2120691-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net, neigh: Fix null-ptr-deref in neigh_table_clear()

When IPv6 module gets initialized but hits an error in the middle,
kenel panic with:

KASAN: null-ptr-deref in range [0x0000000000000598-0x000000000000059f]
CPU: 1 PID: 361 Comm: insmod
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996)
RIP: 0010:__neigh_ifdown.isra.0+0x24b/0x370
RSP: 0018:ffff888012677908 EFLAGS: 00000202
...
Call Trace:
<TASK>
neigh_table_clear+0x94/0x2d0
ndisc_cleanup+0x27/0x40 [ipv6]
inet6_init+0x21c/0x2cb [ipv6]
do_one_initcall+0xd3/0x4d0
do_init_module+0x1ae/0x670
...
Kernel panic - not syncing: Fatal exception

When ipv6 initialization fails, it will try to cleanup and calls:

neigh_table_clear()
  neigh_ifdown(tbl, NULL)
    pneigh_queue_purge(&tbl->proxy_queue, dev_net(dev == NULL))
    # dev_net(NULL) triggers null-ptr-deref.

Fix it by passing NULL to pneigh_queue_purge() in neigh_ifdown() if dev
is NULL, to make kernel not panic immediately.

Fixes: 66ba215cb513 ("neigh: fix possible DoS due to net iface start/stop loop")
Signed-off-by: Chen Zhongjin <chenzhongjin@huawei.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Denis V. Lunev <den@openvz.org>
Link: https://lore.kernel.org/r/20221101121552.21890-1-chenzhongjin@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net/smc: Fix possible leaked pernet namespace in smc_init()

In smc_init(), register_pernet_subsys(&smc_net_stat_ops) is called
without any error handling.
If it fails, registering of &smc_net_ops won't be reverted.
And if smc_nl_init() fails, &smc_net_stat_ops itself won't be reverted.

This leaves wild ops in subsystem linkedlist and when another module
tries to call register_pernet_operations() it triggers page fault:

BUG: unable to handle page fault for address: fffffbfff81b964c
RIP: 0010:register_pernet_operations+0x1b9/0x5f0
Call Trace:
  <TASK>
  register_pernet_subsys+0x29/0x40
  ebtables_init+0x58/0x1000 [ebtables]
  ...

Fixes: 194730a9beb5 ("net/smc: Make SMC statistics network namespace aware")
Signed-off-by: Chen Zhongjin <chenzhongjin@huawei.com>
Reviewed-by: Tony Lu <tonylu@linux.alibaba.com>
Reviewed-by: Wenjia Zhang <wenjia@linux.ibm.com>
Link: https://lore.kernel.org/r/20221101093722.127223-1-chenzhongjin@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

stmmac: dwmac-loongson: fix invalid mdio_node

In current code "plat->mdio_node" is always NULL, the mdio
support is lost as there is no "mdio_bus_data". The original
driver could work as the "mdio" variable is never set to
false, which is described in commit <b0e03950dd71> ("stmmac:
dwmac-loongson: fix uninitialized variable ......"). And
after this commit merged, the "mdio" variable is always
false, causing the mdio supoort logic lost.

Fixes: 30bba69d7db4 ("stmmac: pci: Add dwmac support for Loongson")
Signed-off-by: Liu Peibao <liupeibao@loongson.cn>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20221101060218.16453-1-liupeibao@loongson.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

ibmvnic: Free rwi on reset success

Free the rwi structure in the event that the last rwi in the list
processed successfully. The logic in commit 4f408e1fa6e1 ("ibmvnic:
retry reset if there are no other resets") introduces an issue that
results in a 32 byte memory leak whenever the last rwi in the list
gets processed.

Fixes: 4f408e1fa6e1 ("ibmvnic: retry reset if there are no other resets")
Signed-off-by: Nick Child <nnac123@linux.ibm.com>
Link: https://lore.kernel.org/r/20221031150642.13356-1-nnac123@linux.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: mdio: fix undefined behavior in bit shift for __mdiobus_register

Shifting signed 32-bit value by 31 bits is undefined, so changing
significant bit to unsigned. The UBSAN warning calltrace like below:

UBSAN: shift-out-of-bounds in drivers/net/phy/mdio_bus.c:586:27
left shift of 1 by 31 places cannot be represented in type 'int'
Call Trace:
<TASK>
dump_stack_lvl+0x7d/0xa5
dump_stack+0x15/0x1b
ubsan_epilogue+0xe/0x4e
__ubsan_handle_shift_out_of_bounds+0x1e7/0x20c
__mdiobus_register+0x49d/0x4e0
fixed_mdio_bus_init+0xd8/0x12d
do_one_initcall+0x76/0x430
kernel_init_freeable+0x3b3/0x422
kernel_init+0x24/0x1e0
ret_from_fork+0x1f/0x30
</TASK>

Fixes: 4fd5f812c23c ("phylib: allow incremental scanning of an mii bus")
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20221031132645.168421-1-cuigaosheng1@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Merge git://git./linux/kernel/git/netfilter/nf

Pablo Neira Ayuso says:

====================
Netfilter/IPVS fixes for net

1) netlink socket notifier might win race to release objects that are
   already pending to be released via commit release path, reported by
   syzbot.

2) No need to postpone flow rule release to commit release path, this
   triggered the syzbot report, complementary fix to previous patch.

3) Use explicit signed chars in IPVS to unbreak arm, from Jason A. Donenfeld.

4) Missing check for proc entry creation failure in IPVS, from Zhengchao Shao.

5) Incorrect error path handling when BPF NAT fails to register, from
   Chen Zhongjin.

6) Prevent huge memory allocation in ipset hash types, from Jozsef Kadlecsik.

Except the incorrect BPF NAT error path which is broken in 6.1-rc, anything
else has been broken for several releases.

* git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
  netfilter: ipset: enforce documented limit to prevent allocating huge memory
  netfilter: nf_nat: Fix possible memory leak in nf_nat_init()
  ipvs: fix WARNING in ip_vs_app_net_cleanup()
  ipvs: fix WARNING in __ip_vs_cleanup_batch()
  ipvs: use explicitly signed chars
  netfilter: nf_tables: release flow rule object from commit path
  netfilter: nf_tables: netlink notifier might race to release objects
====================

Link: https://lore.kernel.org/r/20221102184659.2502-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Merge tag 'for-net-2022-10-02' of git://git./linux/kernel/git/bluetooth/bluetooth

Luiz Augusto von Dentz says:

====================
bluetooth 2022-11-02

- Fix memory leak in hci_vhci driver
- Fix handling of skb on virtio_bt driver
- Fix accepting connection for invalid L2CAP PSM
- Fix attemting to access uninitialized memory
- Fix use-after-free in l2cap_reassemble_sdu
- Fix use-after-free in l2cap_conn_del
- Fix handling of destination address type for CIS
- Fix not restoring ISO buffer count on disconnect

* tag 'for-net-2022-10-02' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth:
  Bluetooth: L2CAP: Fix attempting to access uninitialized memory
  Bluetooth: L2CAP: Fix l2cap_global_chan_by_psm
  Bluetooth: L2CAP: Fix accepting connection request for invalid SPSM
  Bluetooth: hci_conn: Fix not restoring ISO buffer count on disconnect
  Bluetooth: L2CAP: Fix memory leak in vhci_write
  Bluetooth: L2CAP: fix use-after-free in l2cap_conn_del()
  Bluetooth: virtio_bt: Use skb_put to set length
  Bluetooth: hci_conn: Fix CIS connection dst_type handling
  Bluetooth: L2CAP: Fix use-after-free caused by l2cap_reassemble_sdu
====================

Link: https://lore.kernel.org/r/20221102235927.3324891-1-luiz.dentz@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Bluetooth: L2CAP: Fix attempting to access uninitialized memory

On l2cap_parse_conf_req the variable efs is only initialized if
remote_efs has been set.

CVE: CVE-2022-42895
CC: stable@vger.kernel.org
Reported-by: Tamás Koczka <poprdi@google.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Reviewed-by: Tedd Ho-Jeong An <tedd.an@intel.com>