CVE-2025-38565 (GCVE-0-2025-38565)

Vulnerability from cvelistv5 – Published: 2025-08-19 17:02 – Updated: 2026-05-11 21:30
VLAI
Title
perf/core: Exit early on perf_mmap() fail
Summary
In the Linux kernel, the following vulnerability has been resolved: perf/core: Exit early on perf_mmap() fail When perf_mmap() fails to allocate a buffer, it still invokes the event_mapped() callback of the related event. On X86 this might increase the perf_rdpmc_allowed reference counter. But nothing undoes this as perf_mmap_close() is never called in this case, which causes another reference count leak. Return early on failure to prevent that.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb , < 5ffda7f3ed76ec8defc19d985e33b3b82ba07839 (git)
Affected: 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb , < 9b90a48c7de828a15c7a4fc565d46999c6e22d6b (git)
Affected: 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb , < de85e72598d89880a02170a1cbc27b35a7d978a9 (git)
Affected: 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb , < 27d44145bd576bbef9bf6165bcd78128ec3e6cbd (git)
Affected: 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb , < f41e9eba77bf97626e04296dc5677d02816d2432 (git)
Affected: 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb , < 92043120a2e992800580855498ab8507e1b22db9 (git)
Affected: 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb , < 163b0d1a209fe0df5476c1df2330ca12b55abf92 (git)
Affected: 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb , < 7ff8521f30c4c2fcd4e88bd7640486602bf8a650 (git)
Affected: 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb , < 07091aade394f690e7b655578140ef84d0e8d7b0 (git)
Create a notification for this product.
Linux Linux Affected: 4.0
Unaffected: 0 , < 4.0 (semver)
Unaffected: 5.4.297 , ≤ 5.4.* (semver)
Unaffected: 5.10.241 , ≤ 5.10.* (semver)
Unaffected: 5.15.190 , ≤ 5.15.* (semver)
Unaffected: 6.1.148 , ≤ 6.1.* (semver)
Unaffected: 6.6.102 , ≤ 6.6.* (semver)
Unaffected: 6.12.42 , ≤ 6.12.* (semver)
Unaffected: 6.15.10 , ≤ 6.15.* (semver)
Unaffected: 6.16.1 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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