Since commit 73ce73c30b ("fbdev: Transfer video= option strings to
caller; clarify ownership") the string returned from fb_get_options()
is expected to be freed by the caller. But the string is not freed in
vesafb_probe(). Fix that by freeing the option string after setup.
Fixes: 73ce73c30b ("fbdev: Transfer video= option strings to caller; clarify ownership")
Cc: stable@vger.kernel.org
Signed-off-by: Abdun Nihaal <nihaal@cse.iitm.ac.in>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
Since commit 73ce73c30b ("fbdev: Transfer video= option strings to
caller; clarify ownership") the string returned from fb_get_options()
is expected to be freed by the caller, but the string is not freed in
efifb_probe(). Fix that by freeing the option string after setup.
Fixes: 73ce73c30b ("fbdev: Transfer video= option strings to caller; clarify ownership")
Cc: stable@vger.kernel.org
Signed-off-by: Abdun Nihaal <nihaal@cse.iitm.ac.in>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
Due to an incorrect goto label, memory allocated for modedb and modelist
in uvesafb_vbe_init() is not freed in some error paths. Fix this by
updating the goto label.
Fixes: 8bdb3a2d7d ("uvesafb: the driver core")
Cc: stable@vger.kernel.org
Signed-off-by: Abdun Nihaal <nihaal@cse.iitm.ac.in>
Signed-off-by: Helge Deller <deller@gmx.de>
In trident_pci_probe(), the memory allocated for modelist using
fb_videomode_to_modelist() is not freed in subsequent error paths.
Fix that by calling fb_destroy_modelist().
Fixes: 6a5e3bd0c8 ("tridentfb: Add DDC support")
Cc: stable@vger.kernel.org
Signed-off-by: Abdun Nihaal <nihaal@cse.iitm.ac.in>
Signed-off-by: Helge Deller <deller@gmx.de>
In tdfxfb_probe(), the memory allocated for modelist using
fb_videomode_to_modelist() when CONFIG_FB_3DFX_I2C is defined, is not
freed in the subsequent error paths.
Fix that by calling fb_destroy_modelist().
Fixes: 215059d242 ("tdfxfb: make use of DDC information about connected monitor")
Cc: stable@vger.kernel.org
Signed-off-by: Abdun Nihaal <nihaal@cse.iitm.ac.in>
Signed-off-by: Helge Deller <deller@gmx.de>
In s3_pci_probe(), the memory allocated for modelist using
fb_videomode_to_modelist() is not freed in subsequent error paths.
Fix that by calling fb_destroy_modelist()
Fixes: 86c0f043a7 ("s3fb: add DDC support")
Cc: stable@vger.kernel.org
Signed-off-by: Abdun Nihaal <nihaal@cse.iitm.ac.in>
Signed-off-by: Helge Deller <deller@gmx.de>
In nvidiafb_probe(), the memory allocated for modelist in
nvidia_set_fbinfo() is not freed in the subsequent error paths.
Fix that by calling fb_destroy_modelist().
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Signed-off-by: Abdun Nihaal <nihaal@cse.iitm.ac.in>
Signed-off-by: Helge Deller <deller@gmx.de>
In i740fb_probe(), the memory allocated in fb_videomode_to_modelist()
for modelist is not freed in the error paths. Fix that by calling
fb_destroy_modelist().
Fixes: 5350c65f4f ("Resurrect Intel740 driver: i740fb")
Cc: stable@vger.kernel.org
Signed-off-by: Abdun Nihaal <nihaal@cse.iitm.ac.in>
Signed-off-by: Helge Deller <deller@gmx.de>
The memory allocated for modelist in fb_videomode_to_modelist() is not
freed in the subsequent error path.
Fix that by calling fb_destroy_modelist()
Fixes: 2ece5f43b0 ("fbdev: add the carmine FB driver")
Cc: stable@vger.kernel.org
Signed-off-by: Abdun Nihaal <nihaal@cse.iitm.ac.in>
Signed-off-by: Helge Deller <deller@gmx.de>
The function radeonfb_pci_register() allocates memory for modelist
(by calling radeon_check_modes() which calls fb_add_videomode()).
The memory is appended to info->modelist, but is not freed in subsequent
error paths. Fix this by calling fb_destroy_modelist().
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Signed-off-by: Abdun Nihaal <nihaal@cse.iitm.ac.in>
Signed-off-by: Helge Deller <deller@gmx.de>
The memory allocated for pagerefs in fb_deferred_io_init() is not freed
on the error path. Fix it by calling fb_deferred_io_cleanup().
Fixes: 56c134f7f1 ("fbdev: Track deferred-I/O pages in pageref struct")
Cc: stable@vger.kernel.org
Signed-off-by: Abdun Nihaal <nihaal@cse.iitm.ac.in>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
The memory allocated for pagerefs in fb_deferred_io_init() is not freed
on the error path. Fix it by calling fb_deferred_io_cleanup().
Fixes: 56c134f7f1 ("fbdev: Track deferred-I/O pages in pageref struct")
Cc: stable@vger.kernel.org
Signed-off-by: Abdun Nihaal <nihaal@cse.iitm.ac.in>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
The memory allocated for pagerefs in fb_deferred_io_init() is not freed
on the error path. Fix it by calling fb_deferred_io_cleanup().
Fixes: 56c134f7f1 ("fbdev: Track deferred-I/O pages in pageref struct")
Cc: stable@vger.kernel.org
Signed-off-by: Abdun Nihaal <nihaal@cse.iitm.ac.in>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
Use of_device_get_match_data() to retrieve the driver match data instead
of open-coding the OF match lookup and dereferencing match->data.
This also removes the deprecated of_device.h include from the driver.
No need for NULL check as every compatible has a corresponding data
component.
Assisted-by: Codex:GPT-5.5
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Use of_device_get_match_data() to fetch the platform ID entry directly
instead of open-coding an of_match_device() lookup. No NULL check is
needed as every compatible string has a corresponding data section.
This also lets the driver drop the of_device.h include.
Assisted-by: Codex:GPT-5.5
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
The return value of vc_resize() is int, but fbcon_set_disp() stores it
in an unsigned long variable. While the !ret check happens to work
correctly by coincidence (negative values become large positive values),
the types should match. Use int instead.
Eliminates the following W=3 warning:
drivers/video/fbdev/core/fbcon.c: In function 'fbcon_set_disp':
drivers/video/fbdev/core/fbcon.c:1494:14: warning: implicit conversion from 'int' to 'unsigned long' [-Wconversion]
Fixes: af0db3c1f8 ("fbdev: Fix vmalloc out-of-bounds write in fast_imageblit")
Cc: stable@vger.kernel.org # v6.17+
Signed-off-by: Jiacheng Yu <yujiacheng3@huawei.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
... and PCI device helpers.
The various struct pci_device_id arrays were initialized mostly by list
expressions. This isn't easily readable if you're not into PCI. Using
named initializers is more explicit and thus easier to parse. Also use
PCI_DEVICE* helper macros to assign .vendor, .device, .subvendor and
.subdevice where appropriate and skip explicit assignments of 0 (which
the compiler takes care of).
The secret plan is to make struct pci_device_id::driver_data an
anonymous union (similar to
https://lore.kernel.org/all/cover.1776579304.git.u.kleine-koenig@baylibre.com/)
and that requires named initializers. But it's also a nice cleanup on
its own.
While touching all these arrays, unify usage of whitespace and comma
in a few drivers.
This change doesn't introduce changes to the compiled pci_device_id
array. Tested on x86 and arm64.
Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com>
Signed-off-by: Helge Deller <deller@gmx.de>
While being less compact, using named initializers allows to more easily
see which members of the structs are assigned which value without having
to lookup the declaration of the struct. And it's also more robust
against changes to the struct definition.
While touching all these arrays, unify usage of whitespace in the list
terminator.
This patch doesn't modify the compiled arrays, only their representation
in source form benefits. The former was confirmed with x86 and arm64
builds.
Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com>
Signed-off-by: Helge Deller <deller@gmx.de>
The mdacon driver supports using ISA MDA or Hercules-compatible display
adapters as a secondary text console. This was commonly used in the
1990s and earlier for debugging software which took over the primary
display. It is highly unlikely anyone is doing so nowadays because
serial consoles and much better methods of debugging exist.
The driver is not enabled by any defconfig, nor any of the
dozens of distro configs collected at [1]. It has been relegated to VTs
13-16 since commit 0b9cf3aa6b ("mdacon messing up default vc's - set
default to vc13-16 again") in Linux 2.6.27 (and before Linux 2.5.53 -
see the link in the message of the above commit). The change in 2.6.27
was done because it was incorrectly detecting non-MDA adapters as MDA
and taking over all VTs, rendering them unusable.
Furthermore, vgacon supports using MDA/Hercules-compatible adapters as
the primary text console, so any systems with only one of these
adapters were already using vgacon and will not experience any loss in
functionality from the removal of this driver.
Given all of these factors, the mdacon driver is likely entirely
unused. Remove it.
[1] f0bee86a13
Signed-off-by: Ethan Nelson-Moore <enelsonmoore@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
The hgafb driver supports graphics adapters compatible with the Hercules
adapter from 1984. These were ISA cards or onboard devices that supported
monochrome 720x348 graphics. This driver was created in 1999 by Ferenc Bakonyi.
In the entire Git history (since Linux 2.6.12-rc2), there has only been one
commit in 2010 which indicated that the driver was in use, commit 529ed806d4
("video: Fix the HGA framebuffer driver"). The commit message states:
Only tested with fbcon, since most fbdev-based software appears
to only support 12bpp and up. It does not appear that this driver has
worked for at least the entire 2.6.x series, perhaps since 2002.
Given the age and limited capabilities of the hardware and the lack of
users, remove this driver and move the former maintainer to CREDITS.
Signed-off-by: Ethan Nelson-Moore <enelsonmoore@gmail.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
- Add more functions to the remote allowed list
randconfig found more functions that are allowed for the remote code for
s390 and arm. Add them to the allowed list.
- Fix remote_test error path
If one of the simple ring buffers fails to load, the code is supposed to
rollback its initialized buffers. Instead of rolling back the buffers for
the failed load, it uses the global variable and rolls back all the
successfully loaded buffers.
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Merge tag 'trace-v7.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Add more functions to the remote allowed list
randconfig found more functions that are allowed for the remote code
for s390 and arm. Add them to the allowed list.
- Fix remote_test error path
If one of the simple ring buffers fails to load, the code is supposed
to rollback its initialized buffers. Instead of rolling back the
buffers for the failed load, it uses the global variable and rolls
back all the successfully loaded buffers.
* tag 'trace-v7.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: Fix desc in error path for the trace remote test module
ring-buffer remote: Avoid unexpected symbol warnings (arm, s390)
When issuing an extended guest request (SVM_VMGEXIT_EXT_GUEST_REQUEST),
get_ext_report() allocates a buffer to retrieve a certificate blob from the
host, keeping track of its size in report_req->certs_len.
However, the host may return SNP_GUEST_VMM_ERR_INVALID_LEN, indicating
an invalid buffer size, as well as the expected length of such buffer.
get_ext_report() subsequently updates report_req->certs_len with the
host-controlled value, and cleans up the buffer by computing a page order
from such value. This is incorrect, as the host-provided length may not
match the page order of the original allocation, potentially resulting
in corruption in the page allocator.
Fix this by using alloc_pages_exact() instead, and reusing @npages to
compute the size passed to free_pages_exact(). For consistency, also
use @npages to compute the size when allocating the pages, even though
this last change has no functional effect.
Fixes: 3e385c0d6c ("virt: sev-guest: Move SNP Guest Request data pages handling under snp_cmd_mutex")
Signed-off-by: Carlos López <clopez@suse.de>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Tested-by: Michael Roth <michael.roth@amd.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Fix use-after-free in irq_work_single() on PREEMPT_RT
(Jiayuan Chen)
- Don't call add_interrupt_randomness() for NMIs
in handle_percpu_devid_irq() (Mark Rutland)
- Remove unused function in the ath79-cpu irqchip driver
causing LKP CI build warnings (Rosen Penev)
- Fix IRQ allocation/teardown leakage regressions in the GICv5
irqchip driver (Sascha Bischoff)
- Fix an IRQ trigger type regression in the Meson S4 SoC irqchip
driver (Xianwei Zhao)
- Fix CPU offlining regression in the RiscV IMSIC irqchip driver
(Yong-Xuan Wang)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'irq-urgent-2026-05-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull IRQ fixes from Ingo Molnar:
- Fix use-after-free in irq_work_single() on PREEMPT_RT (Jiayuan Chen)
- Don't call add_interrupt_randomness() for NMIs in
handle_percpu_devid_irq() (Mark Rutland)
- Remove unused function in the ath79-cpu irqchip driver causing LKP
CI build warnings (Rosen Penev)
- Fix IRQ allocation/teardown leakage regressions in the GICv5 irqchip
driver (Sascha Bischoff)
- Fix an IRQ trigger type regression in the Meson S4 SoC irqchip driver
(Xianwei Zhao)
- Fix CPU offlining regression in the RiscV IMSIC irqchip driver
(Yong-Xuan Wang)
* tag 'irq-urgent-2026-05-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irq_work: Fix use-after-free in irq_work_single() on PREEMPT_RT
irqchip/riscv-imsic: Clear interrupt move state during CPU offlining
irqchip/meson-gpio: Use the correct register in meson_s4_gpio_irq_set_type()
irqchip/ath79-cpu: Remove unused function
genirq/chip: Don't call add_interrupt_randomness() for NMIs
irqchip/gic-v5: Allocate ITS parent LPIs as a range
irqchip/gic-v5: Support range allocation for LPIs
irqchip/gic-v5: Move LPI allocation into the LPI domain
- Disable satp register probing when no5lvl is specified on the kernel
command line
- Fix a CFI-related issue with the misaligned access speed measurement
code
- Reduce the CFI shadow stack size limit from 4GB to 2GB (following
ARM64 GCS)
- Prevent the kernel from requesting delegation of misaligned access
faults unless a new Kconfig option,
CONFIG_RISCV_SBI_FWFT_DELEGATE_MISALIGNED, is enabled. This will
depend on CONFIG_NONPORTABLE until the deficiencies of the kernel
misaligned access fixup code are fixed
- Fix some potential uninitialized memory accesses in error paths in
compat_riscv_gpr_set() and compat_restore_sigcontext()
- Fix a bug in the RISC-V MIPS vendor errata patching code where a
logical-and was used in place of a bitwise-and
- Drop some unnecessary code in riscv_fill_hwcap_from_isa_string()
- Use macros for isa2hwcap indices in riscv_fill_hwcap(), rather than
open-coding them
- Fix some documentation typos (one affecting "make htmldocs")
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Merge tag 'riscv-for-linus-7.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Paul Walmsley:
"Relatively low-impact fixes. Probably the most notable one is that we
no longer ask the monitor-mode firmware to delegate misaligned access
handling to the kernel by default, since the kernel code needs
significant improvement to match the functionality of the firmware.
This change avoids functional problems at some cost in performance,
but shouldn't affect any system with misaligned access handling in
hardware.
- Disable satp register probing when no5lvl is specified on the
kernel command line
- Fix a CFI-related issue with the misaligned access speed
measurement code
- Reduce the CFI shadow stack size limit from 4GB to 2GB (following
ARM64 GCS)
- Prevent the kernel from requesting delegation of misaligned access
faults unless a new Kconfig option, RISCV_SBI_FWFT_DELEGATE_MISALIGNED,
is enabled. This will depend on CONFIG_NONPORTABLE until the
deficiencies of the kernel misaligned access fixup code are fixed
- Fix some potential uninitialized memory accesses in error paths in
compat_riscv_gpr_set() and compat_restore_sigcontext()
- Fix a bug in the RISC-V MIPS vendor errata patching code where a
logical-and was used in place of a bitwise-and
- Drop some unnecessary code in riscv_fill_hwcap_from_isa_string()
- Use macros for isa2hwcap indices in riscv_fill_hwcap(), rather than
open-coding them
- Fix some documentation typos (one affecting 'make htmldocs')"
* tag 'riscv-for-linus-7.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: misaligned: Make enabling delegation depend on NONPORTABLE
riscv: Docs: fix unmatched quote warning
riscv: cfi: reduce shadow stack size limit from 4GB to 2GB
riscv: cpufeature: Use pre-defined ISA ext macros to index isa2hwcap
riscv: mm: Fixup no5lvl failure when vaddr is invalid
riscv: Fix register corruption from uninitialized cregs on error
riscv: errata: Fix bitwise vs logical AND in MIPS errata patching
Documentation: riscv: cmodx: fix typos
riscv: cpufeature: Drop this_hwcap clear in T-Head vector workaround
riscv: Define __riscv_copy_{,vec_}{words,bytes}_unaligned() using SYM_TYPED_FUNC_START
During initialisation in remote_test_load(), if one of the
simple_ring_buffer fails to initialise, the error path attempts to
rollback initialised buffers. However, the rollback incorrectly uses the
global pointer to the trace descriptor, which is only set upon
successful load completion. Fix the error path by using the local
pointer to the descriptor.
Link: https://patch.msgid.link/20260515201616.337469-1-vdonnefort@google.com
Fixes: ea908a2b79 ("tracing: Add a trace remote module for testing")
Reported-by: Sashiko <sashiko-bot@kernel.org>
Signed-off-by: Vincent Donnefort <vdonnefort@google.com>
base-commit: 5d6919055d
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Sashiko reports:
lm90_alert() executes in the smbus alert context and calls
lm90_update_confreg() to disable the hardware alert line, without
acquiring hwmon_lock.
Concurrently, sysfs write operations (such as lm90_write_convrate) hold
the hwmon_lock, temporarily modify data->config, and then restore it.
If an alert interrupt occurs concurrently with a sysfs write, the sysfs
path will overwrite the alert handler's modifications to data->config
and the hardware register.
This unintentionally re-enables the hardware alert line while the alarm is
still active, causing an interrupt storm.
Add the missing lock to lm90_alert() to solve the problem.
Fixes: 7a1d220ccb ("hwmon: (lm90) Introduce function to update configuration register")
Reported-by: Sashiko <sashiko-bot@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Sashiko reports:
In lm90_probe(), the devm action to cancel the alert_work and report_work
(lm90_restore_conf) is registered in lm90_init_client() before
devm_hwmon_device_register_with_info() is called.
Because devm executes cleanup actions in reverse order during module
unbind or probe failure, the hwmon device is unregistered and freed first.
If lm90_alert_work() or lm90_report_alarms() runs in the window between
the hwmon device being freed and the delayed works being cancelled,
lm90_update_alarms() will dereference the freed data->hwmon_dev here.
Fix the problem by canceling the workers separately after registering
the hwmon device and before registering the interrupt handler. This ensures
that the workers are canceled after interrupts are disabled and before
the hwmon device is released. Add "shutdown" flag to indicate that device
shutdown is in progress to prevent workers from being re-armed.
Fixes: f6d0775119 ("hwmon: (lm90) Rework alarm/status handling")
Reported-by: Sashiko <sashiko-bot@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
core:
- fix for the fix for the handle change race.
ttm:
- avoid infinite loop in swap out
- avoid infinite loop in BO shrinking
- convert -EAGAIN from dmem_cgroup_try_charge to -ENOSPC
bridge:
- imx8qxp-pxl2dpi: avoid ERR_PTR with device_node cleanup
i915:
- Skip __i915_request_skip() for already signaled requests
- Fix VSC dynamic range signaling for RGB formats [dp]
xe:
- Madvise fix around purgeability tracking
- Restore engine mask for specific blitter style
- Couple UAF fixes
- Drop unused ggtt_balloon field
amdgpu:
- Userq fixes
- DCN 3.2 fix
- RAS fix
- GC 12 fix
gma500:
- oaktrail_lvds: fix i2c handling
loongson:
- use managed cleanup for connector polling
panfrost:
- handle results from reservation locking correctly
qaic:
- check for integer overflows in mmap logic
rocket:
- handle results from reservation locking correctly
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Merge tag 'drm-fixes-2026-05-16' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"Weekly fixes pull, small and all over fixes, mostly xe and amdgpu,
with some ttm and a core fix for the handle change pain.
core:
- fix for the fix for the handle change race
ttm:
- avoid infinite loop in swap out
- avoid infinite loop in BO shrinking
- convert -EAGAIN from dmem_cgroup_try_charge to -ENOSPC
bridge:
- imx8qxp-pxl2dpi: avoid ERR_PTR with device_node cleanup
i915:
- Skip __i915_request_skip() for already signaled requests
- Fix VSC dynamic range signaling for RGB formats [dp]
xe:
- Madvise fix around purgeability tracking
- Restore engine mask for specific blitter style
- Couple UAF fixes
- Drop unused ggtt_balloon field
amdgpu:
- Userq fixes
- DCN 3.2 fix
- RAS fix
- GC 12 fix
gma500:
- oaktrail_lvds: fix i2c handling
loongson:
- use managed cleanup for connector polling
panfrost:
- handle results from reservation locking correctly
qaic:
- check for integer overflows in mmap logic
rocket:
- handle results from reservation locking correctly"
* tag 'drm-fixes-2026-05-16' of https://gitlab.freedesktop.org/drm/kernel: (26 commits)
drm: Replace old pointer to new idr
drm/loongson: Use managed KMS polling
drm/ttm: Fix ttm_bo_shrink() infinite LRU walk on backup failure
drm/ttm: Convert -EAGAIN from dmem_cgroup_try_charge to -ENOSPC
drm/gma500/oaktrail_lvds: fix i2c adapter leaks on init
drm/gma500/oaktrail_lvds: fix hang on init failure
drm/gma500/oaktrail_hdmi: fix i2c adapter leak on setup
drm/xe: Drop unused ggtt_balloon field
accel/qaic: Add overflow check to remap_pfn_range during mmap
drm/i915/dp: Fix VSC dynamic range signaling for RGB formats
drm/i915: skip __i915_request_skip() for already signaled requests
drm/bridge: imx8qxp-pxl2dpi: avoid ERR_PTR with device_node cleanup
drm/amdgpu/gfx_v12_0: set gfx.rs64_enable from PFP header on GFX12
drm/amd/ras: Fix CPER ring debugfs read overflow
drm/amd/display: Wrap DCN32 phantom-plane allocation in DC_RUN_WITH_PREEMPTION_ENABLED
drm/amdgpu: fix userq hang detection and reset
drm/amdgpu: remove almost all calls to amdgpu_userq_detect_and_reset_queues
drm/amdgpu: rework amdgpu_userq_signal_ioctl v3
drm/amdgpu: remove deadlocks from amdgpu_userq_pre_reset
drm/xe/dma-buf: fix UAF with retry loop
...
Commit 5e28b7b944 introduced a logical error by failing to replace the
newly generated IDR pointer to old id's pointer at the correct location
within the "change handle" logic; this resulted in the issue reported by
syzbot [1].
Specifically, the new IDR object pointer is intended to replace the original
id's pointer during the normal execution flow.
Additionally, an unnecessary conditional check for the ret exit path has
been removed.
[1]
!RB_EMPTY_ROOT(&prime_fpriv->dmabufs)
WARNING: drivers/gpu/drm/drm_prime.c:224 at drm_prime_destroy_file_private+0x48/0x60 drivers/gpu/drm/drm_prime.c:224, CPU#0: syz.0.17/5833
Call Trace:
drm_file_free.part.0+0x7e6/0xcc0 drivers/gpu/drm/drm_file.c:269
drm_file_free drivers/gpu/drm/drm_file.c:237 [inline]
drm_close_helper.isra.0+0x186/0x200 drivers/gpu/drm/drm_file.c:290
drm_release+0x1ab/0x360 drivers/gpu/drm/drm_file.c:438
Fixes: 5e28b7b944 ("drm: Set old handle to NULL before prime swap in change_handle")
Reported-by: syzbot+d7c9eed171647e421013@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=d7c9eed171647e421013
Cc: stable@vger.kernel.org
Tested-by: syzbot+d7c9eed171647e421013@syzkaller.appspotmail.com
Signed-off-by: Edward Adam Davis <eadavis@qq.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patch.msgid.link/tencent_C267296443AAA4567771176886DFF364A305@qq.com
- Fix NULL dereference and a false-positive warning when the driver
probes hardware with surprising version numbers
- Fix writing values to the wrong registers when probing
cache-utilisation counters. Replace 'NRDY' probing with a version
that is robust for platforms where the bit is writeable by both
hardware and software
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 MPAM fixes from Catalin Marinas:
- Fix NULL dereference and a false-positive warning when the driver
probes hardware with surprising version numbers
- Fix writing values to the wrong registers when probing
cache-utilisation counters. Replace 'NRDY' probing with a version
that is robust for platforms where the bit is writeable by both
hardware and software
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm_mpam: Check whether the config array is allocated before destroying it
arm_mpam: Fix false positive assert failure during mpam_disable()
arm_mpam: Improve check for whether or not NRDY is hardware managed
arm_mpam: Pretend that NRDY is always hardware managed
arm_mpam: Fix monitor instance selection when checking for hardware NRDY
Including:
- AMD-Vi:
- Add bounds checks to debugfs and table lookups
- Intel VT-d:
- Apply an existing quirk for Q35 graphic device.
- Skip dev_pasid teardown for the blocked domain to avoid out-of-bounds
access.
- Return early if dev_pasid is missing to prevent NULL dereference or
UAF.
- Core:
- Fix bugs and corner cases in the pci_dev_reset_iommu_prepare/done()
code. This are some bigger changes including some re-work,
hopefully okay for -rc.
- Fix various issues found by AI in iommupt code.
- MAINTAINERS email address update for RISCV IOMMU.
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Merge tag 'iommu-fixes-v7.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux
Pull iommu fixes from Joerg Roedel:
"This is probably the largest fixes pull-request ever sent for IOMMU. I
partially blame it on AI code review which found some issues but there
is also some rework in here to fix issues in the iommu parts of PCI
device reset.
AMD-Vi:
- Add bounds checks to debugfs and table lookups
Intel VT-d:
- Apply an existing quirk for Q35 graphic device
- Skip dev_pasid teardown for the blocked domain to avoid
out-of-bounds access
- Return early if dev_pasid is missing to prevent NULL dereference
or UAF
Core:
- Fix bugs and corner cases in pci_dev_reset_iommu_prepare/done()
- Fix various issues found by AI in iommupt code
MAINTAINERS email address update for RISCV IOMMU"
* tag 'iommu-fixes-v7.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux:
MAINTAINERS: update Tomasz Jeznach's email address
iommupt: Fix the end_index calculation in __map_range_leaf()
iommupt: Check for missing PAGE_SIZE in the pgsize_bitmap
iommu: Handle unmap error when iommu_debug is enabled
iommu: Fix up map/unmap debugging for iommupt domains
iommu: Fix loss of errno on map failure for classic ops
iommu/vt-d: Avoid NULL pointer dereference or refcount corruption
iommu/vt-d: Fix oops due to out of scope access
iommu/vt-d: Disable DMAR for Intel Q35 IGFX
iommu: Warn on premature unblock during DMA aliased sibling reset
iommu: Fix WARN_ON in __iommu_group_set_domain_nofail() due to reset
iommu: Fix ATS invalidation timeouts during __iommu_remove_group_pasid()
iommu: Fix nested pci_dev_reset_iommu_prepare/done()
iommu: Fix pasid attach in pci_dev_reset_iommu_prepare/done()
iommu: Replace per-group resetting_domain with per-gdev blocked flag
iommu: Fix kdocs of pci_dev_reset_iommu_done()
iommu: Fix NULL group->domain dereference in pci_dev_reset_iommu_done()
iommu/amd: Bounds-check devid in __rlookup_amd_iommu()
iommu/amd: Remove latent out-of-bounds access in IOMMU debugfs
- Convert vfio-pci BAR resource requests and iomaps initialization
from a lazy, on-demand model to an eager pre-allocation model to
avoid races while preserving legacy error behavior. Fix unchecked
barmap access in dma-buf export path. (Matt Evans)
- Introduce an implicit unsigned cast in converting vfio-pci device
offsets to region indexes, closing a potential out-of-bounds
access through the vfio_pci_ioeventfd() interface. (Matt Evans)
- Fix a dma-buf kref underflow and stuck wait_for_completion() when
closing a previously revoked dma-buf. (Alex Williamson)
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Merge tag 'vfio-v7.1-rc4' of https://github.com/awilliam/linux-vfio
Pull VFIO fixes from Alex Williamson:
- Convert vfio-pci BAR resource requests and iomaps initialization
from a lazy, on-demand model to an eager pre-allocation model to
avoid races while preserving legacy error behavior. Fix unchecked
barmap access in dma-buf export path (Matt Evans)
- Introduce an implicit unsigned cast in converting vfio-pci device
offsets to region indexes, closing a potential out-of-bounds
access through the vfio_pci_ioeventfd() interface (Matt Evans)
- Fix a dma-buf kref underflow and stuck wait_for_completion() when
closing a previously revoked dma-buf (Alex Williamson)
* tag 'vfio-v7.1-rc4' of https://github.com/awilliam/linux-vfio:
vfio/pci: Check BAR resources before exporting a DMABUF
vfio/pci: Set up BAR resources and maps in vfio_pci_core_enable()
vfio/pci: Make VFIO_PCI_OFFSET_TO_INDEX() return unsigned
vfio/pci: fix dma-buf kref underflow after revoke
that could lead to OOM kills in CephFS and a number of miscellaneous
fixes from Raphael and Slava. All but two are marked for stable.
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Merge tag 'ceph-for-7.1-rc4' of https://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov:
"An important patch from Hristo that squashes a folio reference leak
that could lead to OOM kills in CephFS and a number of miscellaneous
fixes from Raphael and Slava.
All but two are marked for stable"
* tag 'ceph-for-7.1-rc4' of https://github.com/ceph/ceph-client:
libceph: Fix potential null-ptr-deref in decode_choose_args()
libceph: handle rbtree insertion error in decode_choose_args()
libceph: Fix potential out-of-bounds access in osdmap_decode()
ceph: put folios not suitable for writeback
ceph: add ceph_has_realms_with_quotas() check to ceph_quota_update_statfs()
libceph: Fix potential out-of-bounds access in __ceph_x_decrypt()
ceph: fix BUG_ON in __ceph_build_xattrs_blob() due to stale blob size
ceph: fix a buffer leak in __ceph_setxattr()
libceph: Fix unnecessarily high ceph_decode_need() for uniform bucket
libceph: Fix potential out-of-bounds access in crush_decode()
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Merge tag 'for-7.1-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
- fixup warning when allocating memory for readahead, __GFP_NOWARN was
accidentally dropped when setting mapping constraints
- in tracepoint of file sync, fix sleeping in atomic context when
handling dentries
- harden initial loading of block group on crafted/fuzzed images,
iterate all chunk mapping entries unconditionally
- fix freeing pages of submitted io after checking for errors
- fix incorrect inode size after remount when using fallocate KEEP_SIZE
mode (also requires disabled 'no-holes' feature)
* tag 'for-7.1-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fix incorrect i_size after remount caused by KEEP_SIZE prealloc gap
btrfs: only release the dirty pages io tree after successful writes
btrfs: tracepoints: fix sleep while in atomic context in btrfs_sync_file()
btrfs: always pass __GFP_NOWARN from add_ra_bio_pages()
btrfs: fix check_chunk_block_group_mappings() to iterate all chunk maps
Signed-off-by: Carlos Maiolino <cem@kernel.org>
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Merge tag 'xfs-fixes-7.1-rc4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Carlos Maiolino:
"A few bug fixes, nothing really special stands out"
* tag 'xfs-fixes-7.1-rc4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: Fix typo in comment
xfs: fix the "limiting open zones" message
xfs: flush delalloc blocks on ENOSPC in xfs_trans_alloc_icreate
xfs: check da node block pad field during scrub
xfs: fix memory leak for data allocated by xfs_zone_gc_data_alloc()
xfs: fix memory leak on error in xfs_alloc_zone_info()
xfs: check directory data block header padding in scrub
xfs: zero directory data block padding on write verification
xfs: zero entire directory data block header region at init
xfs: remove the meaningless XFS_ALLOC_FLAG_FREEING
Issues reported with v7.1-rc:
- Correctness fix for the new sunrpc cache netlink protocol
Issues that need expedient stable backports:
- Correctness fixes for delegated attributes
- Prevent an infinite loop when revoking layouts
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Merge tag 'nfsd-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull nfsd fixes from Chuck Lever:
"Fixes for this release:
- Correctness fix for the new sunrpc cache netlink protocol
Marked for stable:
- Correctness fixes for delegated attributes
- Prevent an infinite loop when revoking layouts"
* tag 'nfsd-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
NFSD: Fix infinite loop in layout state revocation
sunrpc: start cache request seqno at 1 to fix netlink GET_REQS
nfsd: update mtime/ctime on COPY in presence of delegated attributes
nfsd: update mtime/ctime on CLONE in presense of delegated attributes
nfsd: fix file change detection in CB_GETATTR
nfsd: fix GET_DIR_DELEGATION when VFS leases are disabled
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Merge tag 'block-7.1-20260515' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block fixes from Jens Axboe:
- NVMe merge request via Keith:
- Fix memory leak on a passthrough integrity mapping failure (Keith)
- Hide secrets behind debug option (Hannes)
- Fix pci use-after-free for host memory buffer (Chia-Lin Kao)
- Fix tcp taregt use-after-free for data digest (Sagi)
- Revert a mistaken quirk (Alan Cui)
- Fix uevent and controller state race condition (Maurizio)
- Fix apple submission queue re-initialization (Nick Chan)
- Three fixes for blk-integrity, fixing an issue with the user data
mapping and two problems with recomputing number of segments
- Two fixes for the iov_iter bounce buffering
- Fix for the handling of dead zoned write plugs
- ublk max_sectors validation fix, with associated selftest addition
* tag 'block-7.1-20260515' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
nvme-apple: Reset q->sq_tail during queue init
block: align down bounces bios
block: pass a minsize argument to bio_iov_iter_bounce
selftests: ublk: cap nthreads to kernel's actual nr_hw_queues
block: fix handling of dead zone write plugs
block: bio-integrity: Fix null-ptr-deref in bio_integrity_map_user()
block: recompute nr_integrity_segments in blk_insert_cloned_request
block: don't overwrite bip_vcnt in bio_integrity_copy_user()
nvme: fix race condition between connected uevent and STARTED_ONCE flag
Revert "nvme: add quirk NVME_QUIRK_IGNORE_DEV_SUBNQN for 144d:a808"
nvmet-tcp: Fix potential UAF when ddgst mismatch
nvme-pci: fix use-after-free in nvme_free_host_mem()
nvmet-auth: Do not print DH-HMAC-CHAP secrets
nvme: fix bio leak on mapping failure
nvme: make prp passthrough usage less scary
ublk: reject max_sectors smaller than PAGE_SECTORS in parameter validation
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Merge tag 'io_uring-7.1-20260515' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull io_uring fixes from Jens Axboe:
- Small series sanitizing the locking done for either modifying or
reading a chain of requests
- If the application has a pid namespace, ensure that the sqthread pid
is correctly printed in fdinfo
- Fix for a hashing issue in the io-wq thread pool, which could lead to
a use-after-free
- Kill dead argument from io_prep_rw_pi()
- Fix for a missed validation of the CQ ring head, affecting CQE refill
* tag 'io_uring-7.1-20260515' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
io_uring: validate user-controlled cq.head in io_cqe_cache_refill()
io-wq: check that the predecessor is hashed in io_wq_remove_pending()
io_uring/rw: drop unused attr_type_mask from io_prep_rw_pi()
io_uring: hold uring_lock across io_kill_timeouts() in cancel path
io_uring: defer linked-timeout chain splice out of hrtimer context
io_uring: hold uring_lock when walking link chain in io_wq_free_work()
io_uring/fdinfo: translate SqThread PID through caller's pid_ns
