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Yang Wang 9aa786c15b drm/amd/pm: fix torn gpu metrics reads 
[ Upstream commit 048f4541b7 ]

amdgpu_dpm_get_gpu_metrics() returns a pointer to the shared metrics cache
after dropping adev->pm.mutex. The sysfs path then copies from that pointer.
Another reader can refresh the cache in place during the copy and return a
snapshot containing data from two generations.

Pass caller-provided storage through the DPM interface and copy the metrics
while the mutex is held. This keeps the cache pointer private and makes each
sysfs read observe one complete sample.

Fixes: 25c933b1c4 ("drm/amd/powerplay: add new sysfs interface for retrieving gpu metrics(V2)")
Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 862333bb48)
Cc: stable@vger.kernel.org
[ applied the fix at the caller `amdgpu_get_gpu_metrics()` in amdgpu_pm.c since the `amdgpu_dpm_get_gpu_metrics()` wrapper is a macro on this tree ]
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2026-08-23 14:17:30 +02:00
..
accessibility speakup: Fix sizeof() vs ARRAY_SIZE() bug 2024-06-16 13:39:11 +02:00
acpi ACPI: NFIT: core: Fix acpi_nfit_init() error cleanup 2026-07-24 15:51:56 +02:00
amba amba: tegra-ahb: Fix device leak on SMMU enable 2026-01-19 13:09:54 +01:00
android binder: fix UAF in binder_free_transaction() 2026-07-24 15:51:19 +02:00
ata ata: pata_sl82c105: fix bridge revision use-after-free 2026-08-19 17:14:14 +02:00
atm atm: fore200e: fix use-after-free in tasklets during device removal 2026-03-04 07:20:36 -05:00
auxdisplay auxdisplay: arm-charlcd: fix release_mem_region() size 2026-03-04 07:19:20 -05:00
base firmware_loader: Fix recursive lock in device_cache_fw_images() 2026-07-24 15:51:33 +02:00
bcma Driver core update for 5.15-rc1 2021-09-01 08:44:42 -07:00
block rbd: Reset positive result codes to zero in object map update path 2026-08-19 17:14:04 +02:00
bluetooth Bluetooth: qca: fix NVM tag length underflow in TLV parser 2026-08-19 17:13:54 +02:00
bus bus: sunxi-rsb: Always check register address validity 2026-07-24 15:51:30 +02:00
cdrom cdrom: fix stack out-of-bounds read in CDROMVOLCTRL 2026-08-19 17:14:02 +02:00
char tpm: tpm_tis_spi: Use wait_woken() in wait_for_tmp_stat() 2026-08-23 14:17:22 +02:00
clk clk: qcom: a53: Corrected frequency multiplier for 1152MHz 2026-07-24 15:51:37 +02:00
clocksource clocksource/drivers/timer-integrator-ap: Add missing Kconfig dependency on OF 2026-03-04 07:20:00 -05:00
comedi comedi: comedi_parport: deal with premature interrupt 2026-08-19 17:14:02 +02:00
connector net/connector: Add const qualifier to cb_id 2020-12-16 11:06:49 -08:00
counter counter: microchip-tcb-capture: Fix DT channel validation 2026-08-19 17:14:13 +02:00
cpufreq cpufreq: powernow-k8: Fix possible memory leak in powernowk8_cpu_init() 2026-08-19 17:14:11 +02:00
cpuidle cpuidle: powerpc: avoid double clear when breaking snooze 2026-06-01 17:35:22 +02:00
crypto crypto: qce - fix error path in devm_qce_register_algs 2026-08-23 14:17:16 +02:00
cxl cxl/mem: Fix shutdown order 2023-11-20 11:08:27 +01:00
dax dax/kmem: account for partial discontiguous resource upon removal 2026-07-24 15:51:31 +02:00
dca dca: Use PTR_ERR_OR_ZERO() to simplify code 2020-05-15 16:25:20 +02:00
devfreq PM / devfreq: governor: Replace sscanf() with kstrtoul() in set_freq_store() 2025-08-28 16:24:17 +02:00
dio drivers: dio: fix possible memory leak in dio_init() 2022-12-31 13:14:27 +01:00
dma dmaengine: dw-edma: Add spinlock to protect DONE_INT_MASK and ABORT_INT_MASK 2026-08-23 14:17:22 +02:00
dma-buf dma-buf/drivers: make reserving a shared slot mandatory v4 2026-08-23 14:17:25 +02:00
edac EDAC/{skx_common,skx}: Fix UBSAN shift-out-of-bounds in skx_get_dimm_info 2026-07-24 15:51:31 +02:00
eisa EISA: use DEVICE_ATTR_RO() helper macro 2021-06-04 15:28:34 +02:00
extcon extcon: ptn5150: handle pending IRQ events during system resume 2026-06-01 17:35:22 +02:00
firewire firewire: net: Fix fragmented datagram reassembly 2026-08-19 17:13:56 +02:00
firmware firmware: stratix10-svc: fix memory leaks and list corruption bugs 2026-08-19 17:14:12 +02:00
fpga fpga: dfl-afu: validate DMA mapping length in afu_dma_map_region() 2026-08-23 14:17:17 +02:00
fsi use less confusing names for iov_iter direction initializers 2026-06-19 13:33:46 +02:00
gnss treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
gpio gpio: tegra: do not call pinctrl for GPIO direction 2026-08-23 14:17:24 +02:00
gpu drm/amd/pm: fix torn gpu metrics reads 2026-08-23 14:17:30 +02:00
greybus greybus: Fix use-after-free bug in gb_interface_release due to race condition. 2024-07-05 09:14:23 +02:00
hid HID: logitech-dj: Fix maxfield check in DJ short report validation 2026-08-19 17:14:12 +02:00
hsi HSI: ssi_protocol: Fix use after free vulnerability in ssi_protocol Driver Due to Race Condition 2025-05-02 07:44:06 +02:00
hv Drivers: hv: vmbus: Improve the logic of reserving fb_mmio on Gen2 VMs 2026-07-04 13:39:40 +02:00
hwmon hwmon: (corsair-psu) fix possible out-of-bounds access on missing string termination 2026-08-19 17:14:14 +02:00
hwspinlock hwspinlock: qcom: avoid uninitialized struct members 2026-07-24 15:51:34 +02:00
hwtracing intel_th: fix MSC output device reference leak 2026-08-19 17:14:02 +02:00
i2c i2c: iproc: reset bus after timeout if START_BUSY is stuck 2026-08-23 14:17:30 +02:00
i3c i3c: master: Prevent reuse of dynamic address on device add failure 2026-07-24 15:51:39 +02:00
idle intel_idle: Allow loading ACPI tables for any family 2025-08-28 16:24:16 +02:00
iio iio: imu: inv_icm42600: fix timestamp clock period by using lower value 2026-07-24 15:52:02 +02:00
infiniband RDMA/rxe: Fix a use-after-free problem in rxe_mmap 2026-08-19 17:14:16 +02:00
input Input: ims-pcu - fix firmware leak in async update 2026-08-23 14:17:23 +02:00
interconnect interconnect: qcom: sc7280: Add missing num_links to xm_pcie3_1 node 2025-08-28 16:24:03 +02:00
iommu iommu/amd: Don't split flush for amd_iommu_domain_flush_all() 2026-08-23 14:17:17 +02:00
ipack ipack: ipoctal: fix module reference leak 2021-09-27 17:38:49 +02:00
irqchip irqchip/crossbar: Use correct index in crossbar_domain_free() 2026-07-24 15:51:50 +02:00
isdn use less confusing names for iov_iter direction initializers 2026-06-19 13:33:46 +02:00
leds leds: lm3601x: Improve error reporting for problems during .remove() 2026-07-24 15:52:01 +02:00
macintosh macintosh/mac_hid: fix race condition in mac_hid_toggle_emumouse 2026-01-19 13:09:28 +01:00
mailbox mailbox: mailbox-test: make data_ready a per-instance variable 2026-06-01 17:35:41 +02:00
mcb mcb: fix a double free bug in chameleon_parse_gdd() 2025-05-02 07:44:31 +02:00
md dm-verity: make error counter atomic 2026-08-23 14:17:23 +02:00
media media: v4l2-fwnode: Fix subdev owner overwritten in v4l2_async_register_subdev_sensor() 2026-08-23 14:17:26 +02:00
memory memory: tegra30-emc: Fix dll_change check 2026-06-01 17:35:33 +02:00
memstick memstick: ms_block: reject a card that reports too many blocks 2026-07-24 15:51:55 +02:00
message scsi: fusion: Remove unused variable 'rc' 2024-12-14 19:51:02 +01:00
mfd mfd: tps6586x: Fix OF node refcount 2026-07-24 15:51:48 +02:00
misc misc: fastrpc: fix memory leak in fastrpc_channel_ctx_free 2026-08-19 17:14:16 +02:00
mmc mmc: vub300: fix use-after-free on probe failure 2026-08-23 14:17:23 +02:00
most most: usb: fix double free on late probe failure 2025-12-07 06:09:35 +09:00
mtd mtd: spi-nor: swp: Improve locking user experience 2026-08-23 14:17:21 +02:00
mux mux: gpio: Simplify code by using dev_err_probe() 2021-04-02 16:28:53 +02:00
net ice: wait for reset completion in ice_resume() 2026-08-23 14:17:30 +02:00
nfc nfc: nxp-nci: i2c: use rising-edge IRQ on ACPI systems 2026-06-19 13:33:22 +02:00
ntb NTB: epf: Make db_valid_mask cover only real doorbell bits 2026-07-24 15:51:40 +02:00
nubus nubus: Partially revert proc_create_single_data() conversion 2023-07-05 18:25:05 +01:00
nvdimm nvdimm/btt: Free arena sub-allocations on discover_arenas() error path 2026-07-24 15:51:48 +02:00
nvme nvmet-tcp: Fix potential UAF when ddgst mismatch 2026-08-19 17:13:51 +02:00
nvmem nvmem: core: improve range check for nvmem_cell_write() 2025-03-13 12:50:32 +01:00
of device property: Make modifications of fwnode "flags" thread safe 2026-06-01 17:35:13 +02:00
opp OPP: debugfs: Fix warning around icc_get_name() 2024-03-26 18:21:23 -04:00
parisc parisc: Fix IRQ leak in LASI driver 2026-06-01 17:35:21 +02:00
parport parport: Fix race between port and client registration 2026-06-19 13:33:26 +02:00
pci PCI: Skip Resizable BAR restore on read error 2026-07-24 15:51:58 +02:00
pcmcia PCMCIA: Fix garbled log messages for KERN_CONT 2026-06-01 17:35:37 +02:00
perf perf: arm_spe: Prevent overflow in PERF_IDX2OFF() 2025-10-19 16:21:29 +02:00
phy phy: zynqmp: keep SERDES scrambler and 8b/10b enabled for USB 2026-08-19 17:14:11 +02:00
pinctrl treewide: rename pinctrl_gpio_direction_output_new() 2026-08-23 14:17:24 +02:00
platform platform/x86: xo15-ebook: Fix wakeup source and GPE handling 2026-07-24 15:51:37 +02:00
pnp PNP: ACPI: fix fortify warning 2024-02-23 08:54:38 +01:00
power power: supply: charger-manager: fix refcount leak in is_full_charged() 2026-07-24 15:51:49 +02:00
powercap powercap: fix sscanf() error return value handling 2026-01-19 13:10:19 +01:00
pps pps: fix warning in pps_register_cdev when register device fail 2025-10-19 16:21:33 +02:00
ps3 powerpc/ps3: Warn on PS3 device errors 2021-06-10 21:44:58 +10:00
ptp ptp: Add PHC file mode checks. Allow RO adjtime() without FMODE_WRITE. 2026-02-06 16:41:51 +01:00
pwm pwm: imx27: Fix variable truncation in .apply() 2026-07-24 15:51:30 +02:00
rapidio rapidio/tsi721: prevent a bad dereference in tsi721_db_dpc() 2026-07-24 15:51:31 +02:00
ras RAS/CEC: Correct ce_add_elem()'s returned values 2021-04-07 11:52:26 +02:00
regulator regulator: scmi: fix of_node refcount leak in scmi_regulator_probe() 2026-07-24 15:52:02 +02:00
remoteproc remoteproc: qcom: Fix leak when custom dump_segments addition fails 2026-08-23 14:17:21 +02:00
reset reset: sunxi: fix memory region leak on ioremap failure 2026-07-24 15:51:55 +02:00
rpmsg rpmsg: core: fix race in driver_override_show() and use core helper 2026-03-04 07:20:25 -05:00
rtc rtc: cmos: unregister HPET IRQ handler on probe failure 2026-07-24 15:51:41 +02:00
s390 s390/vfio_ccw: Fix out of bounds check on CCW array 2026-08-23 14:17:16 +02:00
sbus module: remove never implemented MODULE_SUPPORTED_DEVICE 2021-03-17 13:16:18 -07:00
scsi scsi: scsi_debug: Fix REPORT ZONES alloc_len underflow OOB write 2026-08-23 14:17:29 +02:00
sh sh: clk: Fix clk_enable() to return 0 on NULL clk 2025-01-09 13:28:34 +01:00
siox siox: fix possible memory leak in siox_device_add() 2022-11-26 09:24:36 +01:00
slimbus slimbus: qcom-ngd-ctrl: Register callbacks after creating the ngd 2026-07-24 15:51:16 +02:00
soc soc: fsl: qe: panic on ioremap() failure in qe_reset() 2026-07-24 15:51:47 +02:00
soundwire soundwire: stream: restore params when prepare ports fail 2025-08-28 16:24:10 +02:00
spi spi: spi-fsl-dspi: Avoid setup_accel logic for DMA transfers 2026-08-19 17:14:14 +02:00
spmi spmi: hisi-spmi-controller: Do not override device identifier 2024-07-05 09:14:20 +02:00
ssb ssb: Fix division by zero issue in ssb_calc_clock_rate 2024-09-04 13:23:20 +02:00
staging staging: rtl8723bs: validate monitor transmit frame lengths 2026-08-19 17:14:16 +02:00
target scsi: target: core: Fix iSCSI ISID use-after-free in REGISTER AND MOVE 2026-07-24 15:51:52 +02:00
tc The main MIPS changes for 5.6: 2020-01-31 11:28:31 -08:00
tee tee: optee: prevent use-after-free when the client exits before the supplicant 2026-06-19 13:33:32 +02:00
thermal Revert "thermal/drivers/hwmon: Cleanup coding style a bit" 2026-08-19 17:14:17 +02:00
thunderbolt thunderbolt: Prevent XDomain delayed work use-after-free on disconnect 2026-08-23 14:17:23 +02:00
tty serial: sc16is7xx: implement gpio get_direction() callback 2026-08-23 14:17:27 +02:00
uio uio: uio_fsl_elbc_gpcm:: Add null pointer check to uio_fsl_elbc_gpcm_probe 2026-01-19 13:09:23 +01:00
usb usb: gadget: f_tcm: synchronize delayed set_alt with teardown 2026-08-23 14:17:25 +02:00
vdpa VDUSE: avoid leaking information to userspace 2026-08-23 14:17:19 +02:00
vfio vfio/pci: Release the VGA arbiter client on register_device() failure 2026-07-24 15:51:57 +02:00
vhost vhost: reset the vring metadata cache on vring reconfiguration 2026-08-19 17:14:17 +02:00
video fbcon: Use correct type for vc_resize() return value 2026-08-23 14:17:18 +02:00
virt minmax: add in_range() macro 2025-10-19 16:21:28 +02:00
virtio virtio-mmio: fix device release warning on module unload 2026-07-24 15:51:20 +02:00
visorbus visorbus: fix error return code in visorchipset_init() 2021-06-04 15:27:26 +02:00
vlynq bus: Make remove callback return void 2021-07-21 11:53:42 +02:00
vme vme: Fix error not catched in fake_init() 2022-12-31 13:14:30 +01:00
w1 w1: therm: Fix off-by-one buffer overflow in alarms_store 2026-02-06 16:42:02 +01:00
watchdog watchdog: pretimeout: Fix UAF in watchdog_unregister_governor() 2026-08-19 17:13:56 +02:00
xen scsi: xen: scsiback: Free unsubmitted command instead of double-putting it 2026-07-24 15:51:52 +02:00
zorro zorro: Drop useless (and hardly used) .driver member in struct zorro_dev 2021-08-05 14:37:04 +02:00
Kconfig firmware: include drivers/firmware/Kconfig unconditionally 2021-10-07 16:51:26 +02:00
Makefile virtio: always enter drivers/virtio/ 2021-12-22 09:32:39 +01:00