CVE-2025-38322

Medium

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel: Fix crash in icl_update_topdown_event() The perf_fuzzer found a hard-lockup crash on a RaptorLake machine: Oops: general protection fault, maybe for address 0xffff89aeceab400: 0000 CPU: 23 UID: 0 PID: 0 Comm: swapper/23 Tainted: [W]=WARN Hardware name: Dell Inc. Precision 9660/0VJ762 RIP: 0010:native_read_pmc+0x7/0x40 Code: cc e8 8d a9 01 00 48 89 03 5b cd cc cc cc cc 0f 1f ... RSP: 000:fffb03100273de8 EFLAGS: 00010046 .... Call Trace: <TASK> icl_update_topdown_event+0x165/0x190 ? ktime_get+0x38/0xd0 intel_pmu_read_event+0xf9/0x210 __perf_event_read+0xf9/0x210 CPUs 16-23 are E-core CPUs that don't support the perf metrics feature. The icl_update_topdown_event() should not be invoked on these CPUs. It's a regression of commit: f9bdf1f95339 ("perf/x86/intel: Avoid disable PMU if !cpuc->enabled in sample read") The bug introduced by that commit is that the is_topdown_event() function is mistakenly used to replace the is_topdown_count() call to check if the topdown functions for the perf metrics feature should be invoked. Fix it.

Package Linux Kernel
Published 2025-07-10
Last modified 2026-05-12
CVSS version 3.1
Patch available
Yes

CVSS 3.1 score

5.5

out of 10
Medium
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected versions

Linux kernel versions 6.1.134, 6.6.87, 6.12.23, 6.13.11, 6.14.2, 6.15 and later are affected. Fixed in 6.1.149, 6.6.101, 6.12.49, 6.15.4, 6.16 and their respective stable series.

Affected from
≥ 6.1.134 ≥ 6.6.87 ≥ 6.12.23 ≥ 6.13.11 ≥ 6.14.2 ≥ 6.15
Fixed in
✓ 6.1.149 6.1.x ✓ 6.6.101 6.6.x ✓ 6.12.49 6.12.x ✓ 6.15.4 6.15.x ✓ 6.16

References

The following references provide additional information about CVE-2025-38322 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

5 patch commits total View all on NVD

Frequently asked questions

  • What is CVE-2025-38322?

    CVE-2025-38322 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.1.134 onward and has been patched in 6.1.149, 6.6.101, 6.12.49 and others. CVE-2025-38322 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2025-38322?

    CVE-2025-38322 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H .

  • Is there a patch available for CVE-2025-38322?

    Yes — CVE-2025-38322 has been patched. Fixed versions include 6.1.149, 6.6.101, 6.12.49 and others. If you are running Linux kernel 6.1.134 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2025-38322 actively exploited?

    No — CVE-2025-38322 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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