#VU108458 NULL pointer dereference in Linux kernel - CVE-2023-53091
Published: May 4, 2025 / Updated: May 10, 2025
Vulnerability identifier: #VU108458
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-2023-53091
CWE-ID: CWE-476
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 NULL pointer dereference within the ext4_load_journal() function in fs/ext4/super.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/3039d8b8692408438a618fac2776b629852663c3
- https://git.kernel.org/stable/c/499fef2030fb754c68b1c7cb3a799a3bc1d0d925
- https://git.kernel.org/stable/c/70e66bdeae4d0f7c8e87762f425b68aedd5e8955
- https://git.kernel.org/stable/c/ee0c5277d4fab920bd31345c49e193ecede9ecef
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.8