CVE-2025-38322 (GCVE-0-2025-38322)

Vulnerability from cvelistv5 – Published: 2025-07-10 08:14 – Updated: 2026-05-23 15:59
VLAI
Title
perf/x86/intel: Fix crash in icl_update_topdown_event()
Summary
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 781b2db0eb7731fbde510c268b7ccc62959c3feb , < 702ea6028032d6c1fe96c2d4762a3575e3654819 (git)
Affected: e7f6922c8a5b41522a8329ea6bbf815993b2dd28 , < 79e2dd573116d3338507c311460da9669095c94d (git)
Affected: 3a8bec6583e5239de3bd597ab382dc6c2b0c29a1 , < e97c45c770f5e56c784a46c2a96ab968d26b97d9 (git)
Affected: f9bdf1f953392c9edd69a7f884f78c0390127029 , < a85cc69acdcb05f8cd226b8ea0778b8e2e887e6f (git)
Affected: f9bdf1f953392c9edd69a7f884f78c0390127029 , < b0823d5fbacb1c551d793cbfe7af24e0d1fa45ed (git)
Affected: 06cd7bfbb86e9db3e9013ea6636ad2c6f0a1664d (git)
Affected: d8370aa704bd7e384918c8f466856374725c0585 (git)
Affected: 6.1.134 , < 6.1.149 (semver)
Affected: 6.6.87 , < 6.6.101 (semver)
Affected: 6.12.23 , < 6.12.49 (semver)
Affected: 6.13.11 , < 6.14 (semver)
Affected: 6.14.2 , < 6.15 (semver)
Create a notification for this product.
Linux Linux Affected: 6.15
Unaffected: 0 , < 6.15 (semver)
Unaffected: 6.1.149 , ≤ 6.1.* (semver)
Unaffected: 6.6.101 , ≤ 6.6.* (semver)
Unaffected: 6.12.49 , ≤ 6.12.* (semver)
Unaffected: 6.15.4 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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