#VU104999 NULL pointer dereference in Linux kernel - CVE-2025-21755
Published: February 27, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104999
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-2025-21755
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 __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.
External links
- 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