SB2025050251 - Memory leak in Linux kernel btrfs
Published: May 2, 2025 Updated: May 10, 2025
Security Bulletin ID
SB2025050251
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-2022-49913)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the prelim_release() and cond_resched() functions in fs/btrfs/backref.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/222a3d533027b9492d5b7f5ecdc01a90f57bb5a9
- https://git.kernel.org/stable/c/61e06128113711df0534c404fb6bb528eb7d2332
- https://git.kernel.org/stable/c/6a6731a0df8c47ecc703bd7bb73459df767051e0
- https://git.kernel.org/stable/c/83ea8c5b54d452a5769e605e3c5c687e8ca06d89
- https://git.kernel.org/stable/c/92876eec382a0f19f33d09d2c939e9ca49038ae5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.154
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.78
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.224
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1