SB2025121691 - NULL pointer dereference in Linux kernel comedi driver
Published: December 16, 2025
Security Bulletin ID
SB2025121691
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) NULL pointer dereference (CVE-ID: CVE-2025-68257)
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 website.