VULNERABILITY INTELLIGENCE

CVE-2021-38200

CVSS score5.5 MEDIUM

EPSS probability0.26%

CISA KEVNot currently listed

Published2021-08-08

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

arch/powerpc/perf/core-book3s.c in the Linux kernel before 5.12.13, on systems with perf_event_paranoid=-1 and no specific PMU driver support registered, allows local users to cause a denial of service (perf_instruction_pointer NULL pointer dereference and OOPS) via a "perf record" command.

Weakness classification

nvd@nist.gov: CWE-476

Primary references

cve@mitre.org — Mailing List, Patch, Vendor Advisory
cve@mitre.org — Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory