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)
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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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