CVE-2022-50755
kernel: Linux kernel UDF filesystem: Denial of Service due to memory corruption during rename operations
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · December 24, 2025
Updated · August 5, 2026
Description
A flaw was found in the Linux kernel's Universal Disk Format (UDF) filesystem. A local attacker could exploit this memory corruption vulnerability by performing rename operations. The flaw is caused by an incorrect double call to brelse(), which manages buffer memory, leading to an unbalanced buffer head count. This could result in a denial of service (DoS).
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.3CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
CWE-911 · Improper Update of Reference Count