Commit Graph

1398251 Commits

Author SHA1 Message Date
Huacai Chen 4e67526840 LoongArch: Use physical addresses for CSR_MERRENTRY/CSR_TLBRENTRY
Now we use virtual addresses to fill CSR_MERRENTRY/CSR_TLBRENTRY, but
hardware hope physical addresses. Now it works well because the high
bits are ignored above PA_BITS (48 bits), but explicitly use physical
addresses can avoid potential bugs. So fix it.

Cc: stable@vger.kernel.org
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2025-11-10 08:37:06 +08:00
Huacai Chen f28abb9f96 LoongArch: Clarify 3 MSG interrupt features
LoongArch's MSG interrupt features are used across multiple subsystems.
Clarify these features to avoid misuse, existing users will be adjusted
if necessary.

MSGINT: Infrastructure, means the CPU core supports message interupts.
Indicated by CPUCFG1.MSGINT.

AVECINT: AVEC interrupt controller based on MSGINT, means the CPU chip
supports direct message interrupts. Indicated by IOCSR.FEATURES.DMSI.

REDIRECTINT: REDIRECT interrupt controller based on MSGINT and AVECINT,
means the CPU chip supports redirect message interrupts. Indicated by
IOCSR.FEATURES.RMSI.

For example:
Loongson-3A5000/3C5000 doesn't support MSGINT/AVECINT/REDIRECTINT;
Loongson-3A6000 supports MSGINT but doesn't support AVECINT/REDIRECTINT;
Loongson-3C6000 supports MSGINT/AVECINT/REDIRECTINT.

Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2025-11-10 08:37:06 +08:00
Xi Ruoyao fe4b3a34e9 rust: Add -fno-isolate-erroneous-paths-dereference to bindgen_skip_c_flags
It's used to work around an objtool issue since commit abb2a55722
("LoongArch: Add cflag -fno-isolate-erroneous-paths-dereference"), but
it's then passed to bindgen and cause an error because Clang does not
have this option.

Fixes: abb2a55722 ("LoongArch: Add cflag -fno-isolate-erroneous-paths-dereference")
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Tested-by: Mingcong Bai <jeffbai@aosc.io>
Signed-off-by: Xi Ruoyao <xry111@xry111.site>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2025-11-10 08:37:06 +08:00
Joshua Rogers 98a5fd31cb ksmbd: close accepted socket when per-IP limit rejects connection
When the per-IP connection limit is exceeded in ksmbd_kthread_fn(),
the code sets ret = -EAGAIN and continues the accept loop without
closing the just-accepted socket. That leaks one socket per rejected
attempt from a single IP and enables a trivial remote DoS.

Release client_sk before continuing.

This bug was found with ZeroPath.

Cc: stable@vger.kernel.org
Signed-off-by: Joshua Rogers <linux@joshua.hu>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-11-09 17:47:52 -06:00
Joshua Rogers e904d81ad1 smb: server: rdma: avoid unmapping posted recv on accept failure
smb_direct_prepare_negotiation() posts a recv and then, if
smb_direct_accept_client() fails, calls put_recvmsg() on the same
buffer. That unmaps and recycles a buffer that is still posted on
the QP., which can lead to device DMA into unmapped or reused memory.

Track whether the recv was posted and only return it if it was never
posted. If accept fails after a post, leave it for teardown to drain
and complete safely.

Signed-off-by: Joshua Rogers <linux@joshua.hu>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-11-09 17:47:49 -06:00
Edward Adam Davis e8c73eb7db cifs: client: fix memory leak in smb3_fs_context_parse_param
The user calls fsconfig twice, but when the program exits, free() only
frees ctx->source for the second fsconfig, not the first.
Regarding fc->source, there is no code in the fs context related to its
memory reclamation.

To fix this memory leak, release the source memory corresponding to ctx
or fc before each parsing.

syzbot reported:
BUG: memory leak
unreferenced object 0xffff888128afa360 (size 96):
  backtrace (crc 79c9c7ba):
    kstrdup+0x3c/0x80 mm/util.c:84
    smb3_fs_context_parse_param+0x229b/0x36c0 fs/smb/client/fs_context.c:1444

BUG: memory leak
unreferenced object 0xffff888112c7d900 (size 96):
  backtrace (crc 79c9c7ba):
    smb3_fs_context_fullpath+0x70/0x1b0 fs/smb/client/fs_context.c:629
    smb3_fs_context_parse_param+0x2266/0x36c0 fs/smb/client/fs_context.c:1438

Reported-by: syzbot+72afd4c236e6bc3f4bac@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=72afd4c236e6bc3f4bac
Cc: stable@vger.kernel.org
Reviewed-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Signed-off-by: Edward Adam Davis <eadavis@qq.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-11-09 17:30:17 -06:00
Henrique Carvalho 79280191c2 smb: client: fix cifs_pick_channel when channel needs reconnect
cifs_pick_channel iterates candidate channels using cur. The
reconnect-state test mistakenly used a different variable.

This checked the wrong slot and would cause us to skip a healthy channel
and to dispatch on one that needs reconnect, occasionally failing
operations when a channel was down.

Fix by replacing for the correct variable.

Fixes: fc43a8ac39 ("cifs: cifs_pick_channel should try selecting active channels")
Cc: stable@vger.kernel.org
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Henrique Carvalho <henrique.carvalho@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-11-09 17:30:17 -06:00
Linus Torvalds e9a6fb0bcd Linux 6.18-rc5 v6.18-rc5 2025-11-09 15:10:19 -08:00
Linus Torvalds f850568efe Merge tag 'i2c-for-6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fix from Wolfram Sang:
 "Two reverts merged into one commit to handle a regression caused by a
  wrong cleanup because the underlying implications were unclear"

* tag 'i2c-for-6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: muxes: pca954x: Fix broken reset-gpio usage
2025-11-09 09:29:44 -08:00
Linus Torvalds 3461e958c1 Merge tag 'kbuild-fixes-6.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux
Pull Kbuild fixes from Nathan Chancellor:

 - Strip trailing padding bytes from modules.builtin.modinfo to fix
   error during modules_install with certain versions of kmod

 - Drop unused static inline function warning in .c files with clang
   from W=1 to W=2

 - Ensure kernel-doc.py invocations use the PYTHON3 make variable to
   ensure user's choice of Python interpreter is always respected

* tag 'kbuild-fixes-6.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux:
  kbuild: Let kernel-doc.py use PYTHON3 override
  compiler_types: Move unused static inline functions warning to W=2
  kbuild: Strip trailing padding bytes from modules.builtin.modinfo
2025-11-09 09:22:08 -08:00
Baojun Xu 7a39c723b7 ALSA: hda/tas2781: Add new quirk for HP new projects
Add new vendor_id and subsystem_id in quirk for HP new projects.

Signed-off-by: Baojun Xu <baojun.xu@ti.com>
Link: https://patch.msgid.link/20251108142325.2563-1-baojun.xu@ti.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2025-11-09 09:52:59 +01:00
Yosry Ahmed 8a4821412c KVM: nSVM: Fix and simplify LBR virtualization handling with nested
The current scheme for handling LBRV when nested is used is very
complicated, especially when L1 does not enable LBRV (i.e. does not set
LBR_CTL_ENABLE_MASK).

To avoid copying LBRs between VMCB01 and VMCB02 on every nested
transition, the current implementation switches between using VMCB01 or
VMCB02 as the source of truth for the LBRs while L2 is running. If L2
enables LBR, VMCB02 is used as the source of truth. When L2 disables
LBR, the LBRs are copied to VMCB01 and VMCB01 is used as the source of
truth. This introduces significant complexity, and incorrect behavior in
some cases.

For example, on a nested #VMEXIT, the LBRs are only copied from VMCB02
to VMCB01 if LBRV is enabled in VMCB01. This is because L2's writes to
MSR_IA32_DEBUGCTLMSR to enable LBR are intercepted and propagated to
VMCB01 instead of VMCB02. However, LBRV is only enabled in VMCB02 when
L2 is running.

This means that if L2 enables LBR and exits to L1, the LBRs will not be
propagated from VMCB02 to VMCB01, because LBRV is disabled in VMCB01.

There is no meaningful difference in CPUID rate in L2 when copying LBRs
on every nested transition vs. the current approach, so do the simple
and correct thing and always copy LBRs between VMCB01 and VMCB02 on
nested transitions (when LBRV is disabled by L1). Drop the conditional
LBRs copying in __svm_{enable/disable}_lbrv() as it is now unnecessary.

VMCB02 becomes the only source of truth for LBRs when L2 is running,
regardless of LBRV being enabled by L1, drop svm_get_lbr_vmcb() and use
svm->vmcb directly in its place.

Fixes: 1d5a1b5860 ("KVM: x86: nSVM: correctly virtualize LBR msrs when L2 is running")
Cc: stable@vger.kernel.org
Signed-off-by: Yosry Ahmed <yosry.ahmed@linux.dev>
Link: https://patch.msgid.link/20251108004524.1600006-4-yosry.ahmed@linux.dev
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-11-09 08:50:13 +01:00
Yosry Ahmed fbe5e5f030 KVM: nSVM: Always recalculate LBR MSR intercepts in svm_update_lbrv()
svm_update_lbrv() is called when MSR_IA32_DEBUGCTLMSR is updated, and on
nested transitions where LBRV is used. It checks whether LBRV enablement
needs to be changed in the current VMCB, and if it does, it also
recalculate intercepts to LBR MSRs.

However, there are cases where intercepts need to be updated even when
LBRV enablement doesn't. Example scenario:
- L1 has MSR_IA32_DEBUGCTLMSR cleared.
- L1 runs L2 without LBR_CTL_ENABLE (no LBRV).
- L2 sets DEBUGCTLMSR_LBR in MSR_IA32_DEBUGCTLMSR, svm_update_lbrv()
  sets LBR_CTL_ENABLE in VMCB02 and disables intercepts to LBR MSRs.
- L2 exits to L1, svm_update_lbrv() is not called on this transition.
- L1 clears MSR_IA32_DEBUGCTLMSR, svm_update_lbrv() finds that
  LBR_CTL_ENABLE is already cleared in VMCB01 and does nothing.
- Intercepts remain disabled, L1 reads to LBR MSRs read the host MSRs.

Fix it by always recalculating intercepts in svm_update_lbrv().

Fixes: 1d5a1b5860 ("KVM: x86: nSVM: correctly virtualize LBR msrs when L2 is running")
Cc: stable@vger.kernel.org
Signed-off-by: Yosry Ahmed <yosry.ahmed@linux.dev>
Link: https://patch.msgid.link/20251108004524.1600006-3-yosry.ahmed@linux.dev
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-11-09 08:49:52 +01:00
Yosry Ahmed dc55b3c3f6 KVM: SVM: Mark VMCB_LBR dirty when MSR_IA32_DEBUGCTLMSR is updated
The APM lists the DbgCtlMsr field as being tracked by the VMCB_LBR clean
bit.  Always clear the bit when MSR_IA32_DEBUGCTLMSR is updated.

The history is complicated, it was correctly cleared for L1 before
commit 1d5a1b5860 ("KVM: x86: nSVM: correctly virtualize LBR msrs when
L2 is running").  At that point svm_set_msr() started to rely on
svm_update_lbrv() to clear the bit, but when nested virtualization
is enabled the latter does not always clear it even if MSR_IA32_DEBUGCTLMSR
changed. Go back to clearing it directly in svm_set_msr().

Fixes: 1d5a1b5860 ("KVM: x86: nSVM: correctly virtualize LBR msrs when L2 is running")
Reported-by: Matteo Rizzo <matteorizzo@google.com>
Reported-by: evn@google.com
Co-developed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Yosry Ahmed <yosry.ahmed@linux.dev>
Link: https://patch.msgid.link/20251108004524.1600006-2-yosry.ahmed@linux.dev
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-11-09 08:49:48 +01:00
Paolo Bonzini ca00c3af8e Merge tag 'kvmarm-fixes-6.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm654 fixes for 6.18, take #2

* Core fixes

  - Fix trapping regression when no in-kernel irqchip is present
    (20251021094358.1963807-1-sascha.bischoff@arm.com)

  - Check host-provided, untrusted ranges and offsets in pKVM
    (20251016164541.3771235-1-vdonnefort@google.com)
    (20251017075710.2605118-1-sebastianene@google.com)

  - Fix regression restoring the ID_PFR1_EL1 register
    (20251030122707.2033690-1-maz@kernel.org

  - Fix vgic ITS locking issues when LPIs are not directly injected
    (20251107184847.1784820-1-oupton@kernel.org)

* Test fixes

  - Correct target CPU programming in vgic_lpi_stress selftest
    (20251020145946.48288-1-mdittgen@amazon.de)

  - Fix exposure of SCTLR2_EL2 and ZCR_EL2 in get-reg-list selftest
    (20251023-b4-kvm-arm64-get-reg-list-sctlr-el2-v1-1-088f88ff992a@kernel.org)
    (20251024-kvm-arm64-get-reg-list-zcr-el2-v1-1-0cd0ff75e22f@kernel.org)

* Misc

  - Update Oliver's email address
    (20251107012830.1708225-1-oupton@kernel.org)
2025-11-09 08:07:55 +01:00
Paolo Bonzini 0e5ba55750 Merge tag 'kvm-x86-fixes-6.18-rc5' of https://github.com/kvm-x86/linux into HEAD
KVM x86 fixes for 6.18:

 - Inject #UD if the guest attempts to execute SEAMCALL or TDCALL as KVM
   doesn't support virtualization the instructions, but the instructions
   are gated only by VMXON, i.e. will VM-Exit instead of taking a #UD and
   thus result in KVM exiting to userspace with an emulation error.

 - Unload the "FPU" when emulating INIT of XSTATE features if and only if
   the FPU is actually loaded, instead of trying to predict when KVM will
   emulate an INIT (CET support missed the MP_STATE path).  Add sanity
   checks to detect and harden against similar bugs in the future.

 - Unregister KVM's GALog notifier (for AVIC) when kvm-amd.ko is unloaded.

 - Use a raw spinlock for svm->ir_list_lock as the lock is taken during
   schedule(), and "normal" spinlocks are sleepable locks when PREEMPT_RT=y.

 - Remove guest_memfd bindings on memslot deletion when a gmem file is dying
   to fix a use-after-free race found by syzkaller.

 - Fix a goof in the EPT Violation handler where KVM checks the wrong
   variable when determining if the reported GVA is valid.
2025-11-09 08:07:32 +01:00
Paolo Bonzini 36567f1de1 Merge tag 'kvm-riscv-fixes-6.18-2' of https://github.com/kvm-riscv/linux into HEAD
KVM/riscv fixes for 6.18, take #2

- Fix check for local interrupts on riscv32
- Read HGEIP CSR on the correct cpu when checking for IMSIC interrupts
- Remove automatic I/O mapping from kvm_arch_prepare_memory_region()
2025-11-09 08:07:03 +01:00
Jean Delvare 002621a4df kbuild: Let kernel-doc.py use PYTHON3 override
It is possible to force a specific version of python to be used when
building the kernel by passing PYTHON3= on the make command line.
However kernel-doc.py is currently called with python3 hard-coded and
thus ignores this setting.

Use $(PYTHON3) to run $(KERNELDOC) so that the desired version of
python is used.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Nicolas Schier <nsc@kernel.org>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://patch.msgid.link/20251107192933.2bfe9e57@endymion
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
2025-11-08 19:42:22 -07:00
Linus Torvalds 439fc29dfd Merge tag 'drm-fixes-2025-11-09' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fix from Dave Airlie:
 "Brown paper bag, the dma mask fix which I applied and actually looked
  through for bad things, actually broke newer GPUs, there might be some
  latent part in the boot path that is assuming 32-bit still, but we
  will figure that out elsewhere.

  nouveau:
   - revert DMA mask change"

* tag 'drm-fixes-2025-11-09' of https://gitlab.freedesktop.org/drm/kernel:
  Revert "drm/nouveau: set DMA mask before creating the flush page"
2025-11-08 15:37:03 -08:00
Linus Torvalds 41d318c47f Merge tag 'rtc-6.18-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC fixes from Alexandre Belloni:
 "The two reverts are for patches that I shouldn't have applied. The
  rx8025 patch fixes an issue present since 2022:

   - cpcap, tps6586x: revert incorrect irq enable/disable balance fix

   - rx8025: fix incorrect register reference"

* tag 'rtc-6.18-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  rtc: rx8025: fix incorrect register reference
  Revert "rtc: cpcap: Fix initial enable_irq/disable_irq balance"
  Revert "rtc: tps6586x: Fix initial enable_irq/disable_irq balance"
2025-11-08 15:34:23 -08:00
Yuta Hayama 162f24cbb0 rtc: rx8025: fix incorrect register reference
This code is intended to operate on the CTRL1 register, but ctrl[1] is
actually CTRL2. Correctly, ctrl[0] is CTRL1.

Signed-off-by: Yuta Hayama <hayama@lineo.co.jp>
Fixes: 71af915650 ("rtc: rx8025: fix 12/24 hour mode detection on RX-8035")
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/eae5f479-5d28-4a37-859d-d54794e7628c@lineo.co.jp
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-11-08 20:56:12 +01:00
Linus Torvalds 7bb4d65125 Merge tag 'v6.18rc4-SMB-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:

 - Fix change notify packet validation check

 - Refcount fix (e.g. rename error paths)

 - Fix potential UAF due to missing locks on directory lease refcount

* tag 'v6.18rc4-SMB-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  smb: client: validate change notify buffer before copy
  smb: client: fix refcount leak in smb2_set_path_attr
  smb: client: fix potential UAF in smb2_close_cached_fid()
2025-11-08 10:17:30 -08:00
Linus Torvalds 0d7bee10be Merge tag 'x86-urgent-2025-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:

 - Fix AMD PCI root device caching regression that triggers
   on certain firmware variants

 - Fix the zen5_rdseed_microcode[] array to be NULL-terminated

 - Add more AMD models to microcode signature checking

* tag 'x86-urgent-2025-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/microcode/AMD: Add more known models to entry sign checking
  x86/CPU/AMD: Add missing terminator for zen5_rdseed_microcode
  x86/amd_node: Fix AMD root device caching
2025-11-08 09:01:11 -08:00
Linus Torvalds b5c0946029 Merge tag 'sched-urgent-2025-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Ingo Molnar:
 "Fix a group-throttling bug in the fair scheduler"

* tag 'sched-urgent-2025-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/fair: Prevent cfs_rq from being unthrottled with zero runtime_remaining
2025-11-08 08:59:05 -08:00
Linus Torvalds 133262cae9 Merge tag 'perf-urgent-2025-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf event fix from Ingo Molnar:
 "Fix a system hang caused by cpu-clock events deadlock"

* tag 'perf-urgent-2025-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: Fix system hang caused by cpu-clock usage
2025-11-08 08:54:13 -08:00
Linus Torvalds e6f55fe790 Merge tag 'locking-urgent-2025-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fix from Ingo Molnar:
 "Fix (well, cut in half) a futex performance regression on PowerPC"

* tag 'locking-urgent-2025-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  futex: Optimize per-cpu reference counting
2025-11-08 08:51:22 -08:00
Linus Torvalds 3636cfa745 Merge tag 'io_uring-6.18-20251107' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull io_uring fix from Jens Axboe:
 "Single fix in there, fixing an overflow in calculating the needed
  segments for converting into a bvec array"

* tag 'io_uring-6.18-20251107' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
  io_uring: fix regbuf vector size truncation
2025-11-08 08:47:31 -08:00
Linus Torvalds e284d5118a Merge tag 'xfs-fixes-6.18-rc5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Carlos Maiolino:
 "This contain fixes for the RT and zoned allocator, and a few fixes for
  atomic writes"

* tag 'xfs-fixes-6.18-rc5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: free xfs_busy_extents structure when no RT extents are queued
  xfs: fix zone selection in xfs_select_open_zone_mru
  xfs: fix a rtgroup leak when xfs_init_zone fails
  xfs: fix various problems in xfs_atomic_write_cow_iomap_begin
  xfs: fix delalloc write failures in software-provided atomic writes
2025-11-08 08:43:01 -08:00
Oliver Upton 4af235bf64 MAINTAINERS: Switch myself to using kernel.org address
I've been running into issues with the linux.dev email
semi-periodically, switching to my kernel.org address while I go figure
out a better home for my inbox.

Signed-off-by: Oliver Upton <oupton@kernel.org>
Link: https://patch.msgid.link/20251107012830.1708225-1-oupton@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-11-08 11:21:20 +00:00
Oliver Upton 66768669f2 KVM: arm64: vgic-v3: Release reserved slot outside of lpi_xa's lock
xa_release() expects to be called outside of the xa_lock. Fix
vgic_add_lpi() to drop the lock before calling and restructure to get
rid of the goto label.

Reported-by: Zenghui Yu <yuzenghui@huawei.com>
Closes: https://lore.kernel.org/kvmarm/d0853e82-7d95-5025-7abf-c6f1e0cdf7b5@huawei.com/
Fixes: 481c9ee846 ("KVM: arm64: vgic-its: Get rid of the lpi_list_lock")
Signed-off-by: Oliver Upton <oupton@kernel.org>
Link: https://patch.msgid.link/20251107184847.1784820-3-oupton@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-11-08 11:19:32 +00:00
Oliver Upton 75360a9a33 KVM: arm64: vgic-v3: Reinstate IRQ lock ordering for LPI xarray
Zenghui reports that running a KVM guest with an assigned device and
lockdep enabled produces an unfriendly splat due to an inconsistent irq
context when taking the lpi_xa's spinlock.

This is no good as in rare cases the last reference to an LPI can get
dropped after injection of a cached LPI translation. In this case,
vgic_put_irq() will release the IRQ struct and take the lpi_xa's
spinlock to erase it from the xarray.

Reinstate the IRQ ordering and update the lockdep hint accordingly. Note
that there is no irqsave equivalent of might_lock(), so just explictly
grab and release the spinlock on lockdep kernels.

Reported-by: Zenghui Yu <yuzenghui@huawei.com>
Closes: https://lore.kernel.org/kvmarm/b4d7cb0f-f007-0b81-46d1-998b15cc14bc@huawei.com/
Fixes: 982f31bbb5 ("KVM: arm64: vgic-v3: Don't require IRQs be disabled for LPI xarray lock")
Signed-off-by: Oliver Upton <oupton@kernel.org>
Link: https://patch.msgid.link/20251107184847.1784820-2-oupton@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-11-08 11:19:32 +00:00
Marc Zyngier 50e7cce81b KVM: arm64: Limit clearing of ID_{AA64PFR0,PFR1}_EL1.GIC to userspace irqchip
Now that the idreg's GIC field is in sync with the irqchip, limit
the runtime clearing of these fields to the pathological case where
we do not have an in-kernel GIC.

While we're at it, use the existing API instead of open-coded
accessors to access the ID regs.

Fixes: 5cb57a1aff ("KVM: arm64: Zero ID_AA64PFR0_EL1.GIC when no GICv3 is presented to the guest")
Reviewed-by: Oliver Upton <oupton@kernel.org>
Link: https://patch.msgid.link/20251030122707.2033690-4-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-11-08 11:17:28 +00:00
Marc Zyngier 8a9866ff86 KVM: arm64: Set ID_{AA64PFR0,PFR1}_EL1.GIC when GICv3 is configured
Drive the idreg fields indicating the presence of GICv3 directly from
the vgic code. This avoids having to do any sort of runtime clearing
of the idreg.

Fixes: 5cb57a1aff ("KVM: arm64: Zero ID_AA64PFR0_EL1.GIC when no GICv3 is presented to the guest")
Reviewed-by: Oliver Upton <oupton@kernel.org>
Link: https://patch.msgid.link/20251030122707.2033690-3-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-11-08 11:17:28 +00:00
Marc Zyngier 3f9eacf4f0 KVM: arm64: Make all 32bit ID registers fully writable
32bit ID registers aren't getting much love these days, and are
often missed in updates. One of these updates broke restoring
a GICv2 guest on a GICv3 machine.

Instead of performing a piecemeal fix, just bite the bullet
and make all 32bit ID regs fully writable. KVM itself never
relies on them for anything, and if the VMM wants to mess up
the guest, so be it.

Fixes: 5cb57a1aff ("KVM: arm64: Zero ID_AA64PFR0_EL1.GIC when no GICv3 is presented to the guest")
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Cc: stable@vger.kernel.org
Reviewed-by: Oliver Upton <oupton@kernel.org>
Link: https://patch.msgid.link/20251030122707.2033690-2-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-11-08 11:17:28 +00:00
Dave Airlie 4113361590 Revert "drm/nouveau: set DMA mask before creating the flush page"
This reverts commit ebe7556050.

Tested the latest kernel on my GB203 and this seems to break it somehow.

Nov 09 04:16:14 bighp kernel: nouveau 0000:02:00.0: gsp: GSP-FMC boot failed (mbox: 0x0000000b)
Nov 09 04:16:14 bighp kernel: nouveau 0000:02:00.0: gsp: init failed, -5
Nov 09 04:16:14 bighp kernel: nouveau 0000:02:00.0: init failed with -5
Nov 09 04:16:14 bighp kernel: nouveau: drm:00000000:00000080: init failed with -5
Nov 09 04:16:14 bighp kernel: nouveau 0000:02:00.0: drm: Device allocation failed: -5
Nov 09 04:16:14 bighp kernel: nouveau 0000:02:00.0: probe with driver nouveau failed with error -5

Not sure why, I went over the patch and thought it should have worked, but there must be some
32-bit problem maybe in the FMC boot path.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2025-11-08 19:41:09 +10:00
Horatiu Vultur 96a9178a29 net: phy: micrel: lan8814 fix reset of the QSGMII interface
The lan8814 is a quad-phy and it is using QSGMII towards the MAC.
The problem is that everytime when one of the ports is configured then
the PCS is reseted for all the PHYs. Meaning that the other ports can
loose traffic until the link is establish again.
To fix this, do the reset one time for the entire PHY package.

Fixes: ece1950283 ("net: phy: micrel: 1588 support for LAN8814 phy")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Divya Koppera <Divya.Koppera@microchip.com >
Link: https://patch.msgid.link/20251106090637.2030625-1-horatiu.vultur@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-07 19:00:38 -08:00
Wei Fang ad17e7e92a net: fec: correct rx_bytes statistic for the case SHIFT16 is set
Two additional bytes in front of each frame received into the RX FIFO if
SHIFT16 is set, so we need to subtract the extra two bytes from pkt_len
to correct the statistic of rx_bytes.

Fixes: 3ac72b7b63 ("net: fec: align IP header in hardware")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20251106021421.2096585-1-wei.fang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-07 18:55:27 -08:00
Alexander Sverdlin 57531b3416 selftests: net: local_termination: Wait for interfaces to come up
It seems that most of the tests prepare the interfaces once before the test
run (setup_prepare()), rely on setup_wait() to wait for link and only then
run the test(s).

local_termination brings the physical interfaces down and up during test
run but never wait for them to come up. If the auto-negotiation takes
some seconds, first test packets are being lost, which leads to
false-negative test results.

Use setup_wait() in run_test() to make sure auto-negotiation has been
completed after all simple_if_init() calls on physical interfaces and test
packets will not be lost because of the race against link establishment.

Fixes: 90b9566aa5 ("selftests: forwarding: add a test for local_termination.sh")
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
Link: https://patch.msgid.link/20251106161213.459501-1-alexander.sverdlin@siemens.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-07 18:46:36 -08:00
Nate Karstens 4da4e4bde1 strparser: Fix signed/unsigned mismatch bug
The `len` member of the sk_buff is an unsigned int. This is cast to
`ssize_t` (a signed type) for the first sk_buff in the comparison,
but not the second sk_buff. On 32-bit systems, this can result in
an integer underflow for certain values because unsigned arithmetic
is being used.

This appears to be an oversight: if the intention was to use unsigned
arithmetic, then the first cast would have been omitted. The change
ensures both len values are cast to `ssize_t`.

The underflow causes an issue with ktls when multiple TLS PDUs are
included in a single TCP segment. The mainline kernel does not use
strparser for ktls anymore, but this is still useful for other
features that still use strparser, and for backporting.

Signed-off-by: Nate Karstens <nate.karstens@garmin.com>
Cc: stable@vger.kernel.org
Fixes: 43a0c6751a ("strparser: Stream parser for messages")
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://patch.msgid.link/20251106222835.1871628-1-nate.karstens@garmin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-07 18:17:16 -08:00
Nathan Chancellor dc20452e6c riscv: Fix CONFIG_AS_HAS_INSN for new .insn usage
After commit 44aa25c000 ("riscv: asm: use .insn for making custom
instructions"), builds using LLVM older that 19 or binutils older than
2.38 fail with:

  arch/riscv/include/asm/vdso/processor.h: Assembler messages:
  arch/riscv/include/asm/vdso/processor.h:27: Error: unrecognized opcode `0x100000f'
  arch/riscv/include/asm/vdso/processor.h:27: Error: unrecognized opcode `0x100000f'
  arch/riscv/include/asm/vdso/processor.h:27: Error: unrecognized opcode `0x100000f'
  arch/riscv/include/asm/vdso/processor.h:27: Error: unrecognized opcode `0x100000f'
  make[4]: *** [scripts/Makefile.build:287: arch/riscv/kernel/vdso/vgettimeofday.o] Error 1

  In file included from <built-in>:4:
  In file included from lib/vdso/gettimeofday.c:6:
  In file included from include/vdso/datapage.h:21:
  In file included from include/vdso/processor.h:10:
  arch/riscv/include/asm/vdso/processor.h:23:2: error: expected instruction format
     23 |         ALT_RISCV_PAUSE();
        |         ^
  arch/riscv/include/asm/errata_list.h:47:3: note: expanded from macro 'ALT_RISCV_PAUSE'
     47 |                 RISCV_PAUSE, /* Original RISC‑V pause insn */ \
        |                 ^
  arch/riscv/include/asm/insn-def.h:259:21: note: expanded from macro 'RISCV_PAUSE'
    259 | #define RISCV_PAUSE     ASM_INSN_I("0x100000f")
        |                         ^
  arch/riscv/include/asm/asm.h:16:26: note: expanded from macro 'ASM_INSN_I'
     16 | #define ASM_INSN_I(__x) ".insn " __x
        |                          ^
  <inline asm>:5:7: note: instantiated into assembly here
      5 | .insn 0x100000f
        |       ^

binutils gained support for '.insn <value>' in 2.38 [1] and LLVM gained
support in 19 [2]. Adjust the test for CONFIG_AS_HAS_INSN to ensure that
all versions of .insn are supported before being used.

Fixes: 44aa25c000 ("riscv: asm: use .insn for making custom instructions")
Link: https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=a262b82fdbf4cda3b0648b1adc32245ca3f78b7a [1]
Link: https://github.com/llvm/llvm-project/commit/2a086dce691e3cc34a2fc27f4fb255bb2cbbfac9 [2]
Suggested-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://patch.msgid.link/20251107-riscv-fix-new-insn-usage-v1-1-9a186c5928a0@kernel.org
Signed-off-by: Paul Walmsley <pjw@kernel.org>
2025-11-07 17:39:07 -07:00
Feng Jiang 5e8632987d riscv: Remove redundant judgment for the default build target
The value of KBUILD_IMAGE is derived from $(boot-image-y),
so there's no need for redundant checks before this.

Signed-off-by: Feng Jiang <jiangfeng@kylinos.cn>
Reviewed-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
Link: https://lore.kernel.org/r/20251029094429.553842-2-jiangfeng@kylinos.cn
Signed-off-by: Paul Walmsley <pjw@kernel.org>
2025-11-07 17:39:07 -07:00
Feng Jiang 3ad1b71fdc riscv: Build loader.bin exclusively for Canaan K210
According to the explanation in commit ef10bdf9c3 ("riscv:
Kconfig.socs: Split ARCH_CANAAN and SOC_CANAAN_K210"),
loader.bin is a special feature of the Canaan K210 and
is not applicable to other SoCs.

Fixes: e79dfcbfb9 ("riscv: make image compression configurable")
Signed-off-by: Feng Jiang <jiangfeng@kylinos.cn>
Reviewed-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
Link: https://lore.kernel.org/r/20251029094429.553842-1-jiangfeng@kylinos.cn
Signed-off-by: Paul Walmsley <pjw@kernel.org>
2025-11-07 17:39:06 -07:00
Pavel Begunkov 146eb58629 io_uring: fix regbuf vector size truncation
There is a report of io_estimate_bvec_size() truncating the calculated
number of segments that leads to corruption issues. Check it doesn't
overflow "int"s used later. Rough but simple, can be improved on top.

Cc: stable@vger.kernel.org
Fixes: 9ef4cbbcb4 ("io_uring: add infra for importing vectored reg buffers")
Reported-by: Google Big Sleep <big-sleep-vuln-reports+bigsleep-458654612@google.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Günther Noack <gnoack@google.com>
Tested-by: Günther Noack <gnoack@google.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-11-07 17:17:13 -07:00
Linus Torvalds e811c33b1f Merge tag 'drm-fixes-2025-11-08' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
 "Back from travel, thanks to Simona for handling things. regular fixes,
  seems about the right size, but spread out a bit.

  amdgpu has the usual range of fixes, xe has a few fixes, and nouveau
  has a couple of fixes, one for blackwell modifiers on 8/16 bit
  surfaces.

  Otherwise a few small fixes for mediatek, sched, imagination and
  pixpaper.

  sched:
   - Fix deadlock

  amdgpu:
   - Reset fixes
   - Misc fixes
   - Panel scaling fixes
   - HDMI fix
   - S0ix fixes
   - Hibernation fix
   - Secure display fix
   - Suspend fix
   - MST fix

  amdkfd:
   - Process cleanup fix

  xe:
   - Fix missing  synchronization on unbind
   - Fix device shutdown when doing FLR
   - Fix user fence signaling order

  i915:
   - Avoid lock inversion when pinning to GGTT on CHV/BXT+VTD
   - Fix conversion between clock ticks and nanoseconds

  mediatek:
   - Disable AFBC support on Mediatek DRM driver
   - Add pm_runtime support for GCE power control

  imagination:
   - kconfig: Fix dependencies

  nouveau:
   - Set DMA mask earlier
   - Advertize correct modifiers for GB20x

  pixpaper:
   - kconfig: Fix dependencies"

* tag 'drm-fixes-2025-11-08' of https://gitlab.freedesktop.org/drm/kernel: (26 commits)
  drm/xe: Enforce correct user fence signaling order using
  drm/xe: Do clean shutdown also when using flr
  drm/xe: Move declarations under conditional branch
  drm/xe/guc: Synchronize Dead CT worker with unbind
  drm/amd/display: Enable mst when it's detected but yet to be initialized
  drm/amdgpu: Fix wait after reset sequence in S3
  drm/amd: Fix suspend failure with secure display TA
  drm/amdgpu: fix gpu page fault after hibernation on PF passthrough
  drm/tiny: pixpaper: add explicit dependency on MMU
  drm/nouveau: Advertise correct modifiers on GB20x
  drm: define NVIDIA DRM format modifiers for GB20x
  drm/nouveau: set DMA mask before creating the flush page
  drm/sched: Fix deadlock in drm_sched_entity_kill_jobs_cb
  drm/amd/display: Fix NULL deref in debugfs odm_combine_segments
  drm/amdkfd: Don't clear PT after process killed
  drm/amdgpu/smu: Handle S0ix for vangogh
  drm/amdgpu: Drop PMFW RLC notifier from amdgpu_device_suspend()
  drm/amd/display: Fix black screen with HDMI outputs
  drm/amd/display: Don't stretch non-native images by default in eDP
  drm/amd/pm: fix missing device_attr cleanup in amdgpu_pm_sysfs_init()
  ...
2025-11-07 14:51:11 -08:00
Dave Airlie d439acbbfb Merge tag 'drm-xe-fixes-2025-11-07' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes
Driver Changes:
 - Fix missing  synchronization on unbind (Balasubramani Vivekanandan)
 - Fix device shutdown when doing FLR (Jouni Högander)
 - Fix user fence signaling order (Matthew Brost)

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patch.msgid.link/mvfyflloncy76a7nmkatpj6f2afddavwsibz3y4u4wo6gznro5@rdulkuh5wvje
2025-11-08 07:39:54 +10:00
Linus Torvalds 38a2c275c3 Merge tag 'parisc-for-6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc fix from Helge Deller:

 - fix crash triggered by unaligned access in parisc unwinder

* tag 'parisc-for-6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Avoid crash due to unaligned access in unwinder
2025-11-07 13:19:18 -08:00
Linus Torvalds a2e33fb926 Merge tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd
Pull iommufd fixes from Jason Gunthorpe:

 - Syzkaller found a case where maths overflows can cause divide by 0

 - Typo in a compiler bug warning fix in the selftests broke the
   selftests

 - type1 compatability had a mismatch when unmapping an already unmapped
   range, it should succeed

* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd:
  iommufd: Make vfio_compat's unmap succeed if the range is already empty
  iommufd/selftest: Fix ioctl return value in _test_cmd_trigger_vevents()
  iommufd: Don't overflow during division for dirty tracking
2025-11-07 13:13:09 -08:00
Kaushlendra Kumar 4b93d211bb ACPI: MRRM: Fix memory leaks and improve error handling
Add proper error handling and resource cleanup to prevent memory leaks
in add_boot_memory_ranges(). The function now checks for NULL return
from kobject_create_and_add(), uses local buffer for range names to
avoid dynamic allocation, and implements a cleanup path that removes
previously created sysfs groups and kobjects on failure.

This prevents resource leaks when kobject creation or sysfs group
creation fails during boot memory range initialization.

Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Link: https://patch.msgid.link/20251030023228.3956296-1-kaushlendra.kumar@intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-11-07 21:48:49 +01:00
Shubhrajyoti Datta 2cf95b9baa EDAC/versalnet: Handle split messages for non-standard errors
The current code assumes that only DDR errors have split messages.  Ensure
proper logging of non-standard event errors that may be split across multiple
messages too.

  [ bp: Massage, move comment too, fix it up. ]

Fixes: d5fe2fec6c ("EDAC: Add a driver for the AMD Versal NET DDR controller")
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://patch.msgid.link/20251023113108.3467132-1-shubhrajyoti.datta@amd.com
2025-11-07 20:15:14 +01:00
Peter Zijlstra 9818af18db compiler_types: Move unused static inline functions warning to W=2
Per Nathan, clang catches unused "static inline" functions in C files
since commit 6863f5643d ("kbuild: allow Clang to find unused static
inline functions for W=1 build").

Linus said:

> So I entirely ignore W=1 issues, because I think so many of the extra
> warnings are bogus.
>
> But if this one in particular is causing more problems than most -
> some teams do seem to use W=1 as part of their test builds - it's fine
> to send me a patch that just moves bad warnings to W=2.
>
> And if anybody uses W=2 for their test builds, that's THEIR problem..

Here is the change to bump the warning from W=1 to W=2.

Fixes: 6863f5643d ("kbuild: allow Clang to find unused static inline functions for W=1 build")
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20251106105000.2103276-1-andriy.shevchenko@linux.intel.com
[nathan: Adjust comment as well]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
2025-11-07 11:19:53 -07:00