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CVE-2025-38168

perf: arm-ni: Unregister PMUs on probe failure

MEDIUM
5.5
CVSS Score
Published: July 3, 2025 at 08:36 AM UTC
Updated: October 15, 2026 at 10:18 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: perf: arm-ni: Unregister PMUs on probe failure When a resource allocation fails in one clock domain of an NI device, we need to properly roll back all previously registered perf PMUs in other clock domains of the same device. Otherwise, it can lead to kernel panics. Calling arm_ni_init+0x0/0xff8 [arm_ni] @ 2374 arm-ni ARMHCB70:00: Failed to request PMU region 0x1f3c13000 arm-ni ARMHCB70:00: probe with driver arm-ni failed with error -16 list_add corruption: next->prev should be prev (fffffd01e9698a18), but was 0000000000000000. (next=ffff10001a0decc8). pstate: 6340009 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : list_add_valid_or_report+0x7c/0xb8 lr : list_add_valid_or_report+0x7c/0xb8 Call trace: __list_add_valid_or_report+0x7c/0xb8 perf_pmu_register+0x22c/0x3a0 arm_ni_probe+0x554/0x70c [arm_ni] platform_probe+0x70/0xe8 really_probe+0xc6/0x4d8 driver_probe_device+0x48/0x170 __driver_attach+0x8e/0x1c0 bus_for_each_dev+0x64/0xf0 driver_add+0x138/0x260 bus_add_driver+0x68/0x138 __platform_driver_register+0x2c/0x40 arm_ni_init+0x14/0x2a [arm_ni] do_init_module+0x36/0x298 ---[ end trace 0000000000000000 ]--- Kernel panic - not syncing: Oops - BUG: Fatal exception SMP: stopping secondary CPUs

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
6.12 ≤ v < 6.12.346.13 ≤ v < 6.15.34d5a7680f2b4d0c2955e1d9f9a594b050d6374366.12
Vendor states this is fixed in 72caf9886e9c1731cf7bfe3eabc308b9268b21d6 (fixed)
Vendor states this is fixed in 7e958e116e3be05a1f869b5a885fc5d674c7725f (fixed)
Vendor states this is fixed in 7f57afde6a44d9e044885e1125034edd4fda02e8 (fixed)
Vendor states this is fixed in 6.12 (unaffected)
Vendor states this is fixed in 6.12.34 (unaffected)
Vendor states this is fixed in 6.15.3 (unaffected)
Vendor states this is fixed in 6.16 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/72caf9886e9c1731cf7bfe3eabc308b9268b21d6
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/7e958e116e3be05a1f869b5a885fc5d674c7725f
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/7f57afde6a44d9e044885e1125034edd4fda02e8

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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