SB20250226388 - NULL pointer dereference in Linux kernel f2fs
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226388
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2022-49428)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the __recover_dot_dentries() function in fs/f2fs/namei.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/12662d19467b391b5b509ac5e9ab4f583c6dde16
- https://git.kernel.org/stable/c/250e5a6be52a6b9d82fe91976c83cc158868b4e9
- https://git.kernel.org/stable/c/2f46160d0a19b13bfe96c0dd50eed5c5d253ab7a
- https://git.kernel.org/stable/c/34f48ce5d5936eea33e3b6415403e57eb84aff97
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.14