Improper Locking Affecting kernel-default-devel package, versions <5.3.18-24.99.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (24th percentile)

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  • Snyk IDSNYK-SLES152-KERNELDEFAULTDEVEL-2653884
  • published14 Apr 2022
  • disclosed26 Jan 2022

Introduced: 26 Jan 2022

CVE-2021-4149  (opens in a new tab)
CWE-667  (opens in a new tab)

How to fix?

Upgrade SLES:15.2 kernel-default-devel to version 5.3.18-24.99.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-default-devel package and not the kernel-default-devel package as distributed by SLES. See How to fix? for SLES:15.2 relevant fixed versions and status.

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.

CVSS Scores

version 3.1