#VU120762 NULL pointer dereference in Linux kernel - CVE-2023-54296
Published: December 30, 2025 / Updated: December 30, 2025
Vulnerability identifier: #VU120762
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-2023-54296
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 sev_migrate_from() function in arch/x86/kvm/svm/sev.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/2ee4b180d51b12a45bdd3264629719ef6a572a73
- https://git.kernel.org/stable/c/5c18ace750e4d4d58d7da02d1c669bf21c824158
- https://git.kernel.org/stable/c/f1187ef24eb8f36e8ad8106d22615ceddeea6097
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.54
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6