SB2025072734 - NULL pointer dereference in Linux kernel atm
Published: July 27, 2025
Security Bulletin ID
SB2025072734
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-2025-38460)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the DEFINE_MUTEX(), to_atmarpd(), atmarpd_close() and atm_init_atmarp() functions in net/atm/clip.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/06935c50cfa3ac57cce80bba67b6d38ec1406e92
- https://git.kernel.org/stable/c/3251ce3979f41bd228f77a7615f9dd616d06a110
- https://git.kernel.org/stable/c/36caab990b69ef4eec1d81c52a19f080b7daa059
- https://git.kernel.org/stable/c/706cc36477139c1616a9b2b96610a8bb520b7119
- https://git.kernel.org/stable/c/70eac9ba7ce25d99c1d99bbf4ddb058940f631f9
- https://git.kernel.org/stable/c/a4c5785feb979cd996a99cfaad8bf353b2e79301
- https://git.kernel.org/stable/c/ee4d9e4ddf3f9c4ee2ec0a3aad6196ee36d30e57
- https://git.kernel.org/stable/c/f58e4270c73e7f086322978d585ea67c8076ce49