SB2025091670 - Memory leak in Linux kernel ext4
Published: September 16, 2025 Updated: September 22, 2025
Security Bulletin ID
SB2025091670
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) Memory leak (CVE-ID: CVE-2022-50286)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the ext4_clu_mapped() function in fs/ext4/extents.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/131294c35ed6f777bd4e79d42af13b5c41bf2775
- https://git.kernel.org/stable/c/6f4200ec76a0d31200c308ec5a71c68df5417004
- https://git.kernel.org/stable/c/81b915181c630ee1cffa052e52874fe4e1ba91ac
- https://git.kernel.org/stable/c/9404839e0c9db5a517ea83c0ca3388b39d105fdf
- https://git.kernel.org/stable/c/c0c8edbc8abbe8f16d80a1d794d1ba2c12b6f193
- https://git.kernel.org/stable/c/d440d6427a5e3a877c1c259b8d2b216ddb65e185
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.87