CVE-2021-4149

MediumCVSS 5.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-667

Affected software

No affected versions have been published.

Timeline

Published
Mar 23, 2022
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-4149: Medium severity, CVSS 5.5 | Vulnix