#VU113243 Use-after-free in Linux kernel - CVE-2025-38464

Vulnerability identifier: #VU113243

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-38464

CWE-ID: CWE-416

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 escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the tipc_topsrv_stop() function in net/tipc/topsrv.c. A local user can escalate privileges on the system.

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/03dcdd2558e1e55bf843822fe4363dcb48743f2b
https://git.kernel.org/stable/c/15a6f4971e2f157d57e09ea748d1fbc714277aa4
https://git.kernel.org/stable/c/1dbf7cd2454a28b1da700085b99346b5445aeabb
https://git.kernel.org/stable/c/3b89e17b2fd64012682bed158d9eb3d2e96dec42
https://git.kernel.org/stable/c/50aa2d121bc2cfe2d825f8a331ea75dfaaab6a50
https://git.kernel.org/stable/c/667eeab4999e981c96b447a4df5f20bdf5c26f13
https://git.kernel.org/stable/c/be4b8392da7978294f2f368799d29dd509fb6c4d
https://git.kernel.org/stable/c/dab8ded2e5ff41012a6ff400b44dbe76ccf3592a

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?