VULNERABILITY INTELLIGENCE

CVE-2021-38203

CVSS score5.5 MEDIUM

EPSS probability0.36%

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

btrfs in the Linux kernel before 5.13.4 allows attackers to cause a denial of service (deadlock) via processes that trigger allocation of new system chunks during times when there is a shortage of free space in the system space_info.

Weakness classification

nvd@nist.gov: CWE-667

Primary references

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