Improper Locking Affecting kernel-uek-devel package, versions <0:4.1.12-124.62.3.el7uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.05% (24th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEKDEVEL-2803229
  • published26 Apr 2022
  • disclosed23 Mar 2022

Introduced: 23 Mar 2022

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

How to fix?

Upgrade Oracle:7 kernel-uek-devel to version 0:4.1.12-124.62.3.el7uek or higher.
This issue was patched in ELSA-2022-9348.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-devel package and not the kernel-uek-devel package as distributed by Oracle. See How to fix? for Oracle:7 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