CVE-2025-38565
perf/core: Exit early on perf_mmap() fail
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
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.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
4.0
References 9
git.kernel.org
- stable/c/5ffda7f3ed76ec8defc19d985e33b3b82ba07839
- stable/c/9b90a48c7de828a15c7a4fc565d46999c6e22d6b
- stable/c/de85e72598d89880a02170a1cbc27b35a7d978a9
- stable/c/27d44145bd576bbef9bf6165bcd78128ec3e6cbd
- stable/c/f41e9eba77bf97626e04296dc5677d02816d2432
- stable/c/92043120a2e992800580855498ab8507e1b22db9
- stable/c/163b0d1a209fe0df5476c1df2330ca12b55abf92
- stable/c/7ff8521f30c4c2fcd4e88bd7640486602bf8a650
- stable/c/07091aade394f690e7b655578140ef84d0e8d7b0