SB2025022793 - NULL pointer dereference in Linux kernel can ctucanfd driver
Published: February 27, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025022793
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-2025-21775)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the ctucan_err_interrupt() function in drivers/net/can/ctucanfd/ctucanfd_base.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/84b9ac59978a6a4e0812d1c938fad97306272cef
- https://git.kernel.org/stable/c/9bd24927e3eeb85642c7baa3b28be8bea6c2a078
- https://git.kernel.org/stable/c/b0e592dd46a0a952b41c3bf6c963afdd6a42b526
- https://git.kernel.org/stable/c/e505b83b9ee6aa0ae2f4395f573a66579ae403fb
- https://git.kernel.org/stable/c/e7e2e2318b1f085044126ba553a4e619842fc36d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.4