VULNERABILITY INTELLIGENCE

CVE-2021-4149

CVSS score5.5 MEDIUM
EPSS probability0.40%
CISA KEVNot currently listed
Published2022-03-23
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

A vulnerability was found in btrfs_alloc_tree_b in fs/btrfs/extent-tree.c in the Linux kernel due to an improper lock operation in btrfs. In this flaw, a user with a local privilege may cause a denial of service (DOS) due to a deadlock problem.

Weakness classification

  • secalert@redhat.com: CWE-667
  • nvd@nist.gov: CWE-667

Primary references