#VU113259 NULL pointer dereference in Linux kernel - CVE-2025-38462

Vulnerability identifier: #VU113259

Vulnerability risk: Low

CVSSv4.0: 4.3 [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-2025-38462

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: 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_assign_transport() and vsock_dev_do_ioctl() functions in net/vmw_vsock/af_vsock.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/209fd720838aaf1420416494c5505096478156b4
https://git.kernel.org/stable/c/3734d78210cceb2ee5615719a62a5c55ed381ff8
https://git.kernel.org/stable/c/401239811fa728fcdd53e360a91f157ffd23e1f4
https://git.kernel.org/stable/c/5752d8dbb3dfd7f1a9faf0f65377e60826ea9a17
https://git.kernel.org/stable/c/6a1bcab67bea797d83aa9dd948a0ac6ed52d121d
https://git.kernel.org/stable/c/80d7dc15805a93d520a249ac6d13d4f4df161c1b
https://git.kernel.org/stable/c/c5496ee685c48ed1cc183cd4263602579bb4a615

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?