CVE-2025-38322

MEDIUM EPSS 5.0%
Published Jul 10, 202511mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
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Published Jul 10, 2025 11mo ago
Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
5.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel*≥6.1.134  –  <6.1.149
linuxlinux_kernel*≥6.6.87  –  <6.6.101
linuxlinux_kernel*≥6.12.23  –  <6.12.49
linuxlinux_kernel*≥6.13.11  –  <6.14
linuxlinux_kernel*≥6.14.2  –  <6.15.4
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
debiandebian_linux11.0any

References 7

  • cert-portal.siemens.com https://cert-portal.siemens.com/productcert/html/ssa-032379.html
  • git.kernel.org https://git.kernel.org/stable/c/702ea6028032d6c1fe96c2d4762a3575e3654819
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/79e2dd573116d3338507c311460da9669095c94d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a85cc69acdcb05f8cd226b8ea0778b8e2e887e6f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b0823d5fbacb1c551d793cbfe7af24e0d1fa45ed
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e97c45c770f5e56c784a46c2a96ab968d26b97d9
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
    Third Party Advisory

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/702ea6028032d6c1fe96c2d4762a3575e3654819
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/79e2dd573116d3338507c311460da9669095c94d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a85cc69acdcb05f8cd226b8ea0778b8e2e887e6f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b0823d5fbacb1c551d793cbfe7af24e0d1fa45ed
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e97c45c770f5e56c784a46c2a96ab968d26b97d9
    Patch