#VU113260 NULL pointer dereference in Linux kernel - CVE-2025-38460

Vulnerability identifier: #VU113260

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-2025-38460

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 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.

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

---

External links
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

---

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?