#VU120532 Double free in Linux kernel - CVE-2023-54127
Published: December 26, 2025 / Updated: December 31, 2025
Vulnerability identifier: #VU120532
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-54127
CWE-ID: CWE-415
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
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 repository.
External links
- 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