SB2025022796 - NULL pointer dereference in Linux kernel vmw_vsock
Published: February 27, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025022796
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-2025-21755)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the __vsock_release() function in net/vmw_vsock/af_vsock.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/3a866f8376f0a5c848dcb59cd26df845fffbe6d8
- https://git.kernel.org/stable/c/78dafe1cf3afa02ed71084b350713b07e72a18fb
- https://git.kernel.org/stable/c/94d81870eec7ad2dd7af80bffd314ded26caea1a
- https://git.kernel.org/stable/c/f3b8e9d3414b2eb083d8293be25a949fe480897b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.79