VULNERABILITY INTELLIGENCE

CVE-2022-49343

CVSS score7.8 HIGH
EPSS probability0.29%
CISA KEVNot currently listed
Published2025-02-26
Last modified2026-08-04
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Description

In the Linux kernel, the following vulnerability has been resolved: ext4: avoid cycles in directory h-tree A maliciously corrupted filesystem can contain cycles in the h-tree stored inside a directory. That can easily lead to the kernel corrupting tree nodes that were already verified under its hands while doing a node split and consequently accessing unallocated memory. Fix the problem by verifying traversed block numbers are unique.

Weakness classification

  • nvd@nist.gov: NVD-CWE-noinfo

Primary references