SB2025122617 - Memory leak in Linux kernel btrfs
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB2025122617
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-2023-54158)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the block_rsv_release_bytes() function in fs/btrfs/block-rsv.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/04ff6bd0317735791ef3e443c7c89f3c0dda548d
- https://git.kernel.org/stable/c/148b16cd30b202999ec5b534e3e5d8ab4b766f21
- https://git.kernel.org/stable/c/15e877e5923ec6d6caa5e447dcc4b79a8ff7cc53
- https://git.kernel.org/stable/c/1e05bf5e80bb1161b7294c9ce5292b26232ab853
- https://git.kernel.org/stable/c/478bd15f46b6e3aae78aac4f3788697f1546eea6
- https://git.kernel.org/stable/c/d246331b78cbef86237f9c22389205bc9b4e1cc1
- https://git.kernel.org/stable/c/f264be24146bee2d652010a18ae2517df5856261
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.112