SB20250226558 - Input validation error in Linux kernel ext4
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226558
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) Input validation error (CVE-ID: CVE-2022-49348)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the __ext4_fill_super() and __ext4_remount() functions in fs/ext4/super.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/55b4dbb29054a05d839562f6d635ce05669b016d
- https://git.kernel.org/stable/c/af2f1932743fb52ebcb008ad7ac500d9df0aa796
- https://git.kernel.org/stable/c/b99fd73418350dea360da8311e87a6a7b0e15a4c
- https://git.kernel.org/stable/c/c878bea3c9d724ddfa05a813f30de3d25a0ba83f
- https://git.kernel.org/stable/c/cc5b09cb6dacd4b32640537929ab4ee8fb2b9e04
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.121