CVE-2025-38565
HIGH severity · CVSS 7.8
7.8CVSS HIGH
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (2)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/07091aade394f690e7b655578140ef84d0e8d7b0 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/07091aade394f690e7b655578140ef84d0e8d7b0Patch
- https://git.kernel.org/stable/c/163b0d1a209fe0df5476c1df2330ca12b55abf92Patch
- https://git.kernel.org/stable/c/27d44145bd576bbef9bf6165bcd78128ec3e6cbdPatch
- https://git.kernel.org/stable/c/5ffda7f3ed76ec8defc19d985e33b3b82ba07839Patch
- https://git.kernel.org/stable/c/7ff8521f30c4c2fcd4e88bd7640486602bf8a650Patch
- https://git.kernel.org/stable/c/92043120a2e992800580855498ab8507e1b22db9Patch
- https://git.kernel.org/stable/c/9b90a48c7de828a15c7a4fc565d46999c6e22d6bPatch
- https://git.kernel.org/stable/c/de85e72598d89880a02170a1cbc27b35a7d978a9Patch