#VU120048 NULL pointer dereference in Linux kernel - CVE-2025-68257
Published: December 16, 2025
Vulnerability identifier: #VU120048
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-2025-68257
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 compat_chaninfo(), compat_rangeinfo(), compat_cmd(), compat_cmdtest(), compat_insnlist() and compat_insn() functions in drivers/comedi/comedi_fops.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.