#VU112785 Improper locking in Linux kernel - CVE-2025-38324

Vulnerability identifier: #VU112785

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-2025-38324

CWE-ID: CWE-667

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 improper locking within the mpls_route_input_rcu() function in net/mpls/af_mpls.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/2919297b18e5a5fb7e643f9e32c12c0b17cce1be
https://git.kernel.org/stable/c/36af82f25fbdcd719eb947c15ea874bf80bcf229
https://git.kernel.org/stable/c/49b8a9d7d44401a186e20b1aaf591d2e62727aeb
https://git.kernel.org/stable/c/517bc6836ee9fcffe2539f6f6aa3fdd9c7a7ae73
https://git.kernel.org/stable/c/6dbb0d97c5096072c78a6abffe393584e57ae945
https://git.kernel.org/stable/c/a060781640012d5d5105072f4c44ed6ad6830ef9
https://git.kernel.org/stable/c/d8cd847fb8626872631cc22d44be5127b4ebfb74
https://git.kernel.org/stable/c/f19cbd84e645e39bc3228e1191bb151ef0ffac8c

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?