VULNERABILITY INTELLIGENCE

CVE-2025-38565

CVSS score7.8 HIGH
EPSS probability0.19%
CISA KEVNot currently listed
Published2025-08-19
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

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.

Weakness classification

  • nvd@nist.gov: NVD-CWE-noinfo

Primary references