SB20251226274 - Double free in Linux kernel jfs
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251226274
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) Double free (CVE-ID: CVE-2023-54127)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a double free error within the dbUnmount() function in fs/jfs/jfs_dmap.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/2f7a36448f51d08d3a83f1514abcca4b680bcd3c
- https://git.kernel.org/stable/c/6f8b34458948ffca2fe90cd8c614e3fa2ebe0b27
- https://git.kernel.org/stable/c/798c5f6f98bc9045593d4b3a65c32f05d97bd0e6
- https://git.kernel.org/stable/c/aa5b019a3e0f7f54f4e5370c1af827f6b00fd26b
- https://git.kernel.org/stable/c/aef6507e85475e30831c30405d785c7ed976ea4a
- https://git.kernel.org/stable/c/b12ccbfdf6539ef0157868f69fcae0b7f7a072b3
- https://git.kernel.org/stable/c/cade5397e5461295f3cb87880534b6a07cafa427
- https://git.kernel.org/stable/c/f71c4bb3ec08dfcbd201350a6a0a914c4e6a9e3f
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.5