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LIN1021-2263 : Security Advisory - linux - CVE-2021-4149

Created: Dec 23, 2021    Updated: Mar 24, 2022
Resolved Date: Jan 19, 2022
Found In Version: 10.21.20.1
Fix Version: 10.21.20.7
Severity: Standard
Applicable for: Wind River Linux LTS 21
Component/s: Kernel

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.

https://nvd.nist.gov/vuln/detail/CVE-2021-4149

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