#VU107748 Improper locking in Linux kernel - CVE-2025-22029

Vulnerability identifier: #VU107748

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-2025-22029

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 begin_new_exec(), free_bprm(), check_unsafe_exec(), bprm_execve() and sched_mm_cid_after_execve() functions in fs/exec.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.12, 6.12.1, 6.12.2, 6.12.3, 6.12.4, 6.12.5, 6.12.6, 6.12.7, 6.12.8, 6.12.9, 6.12.10, 6.12.11, 6.12.12, 6.12.13, 6.12.14, 6.12.15, 6.12.16, 6.12.17, 6.12.18, 6.12.19, 6.12.20, 6.12.21, 6.12.22

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External links
https://git.kernel.org/stable/c/753a620a7f8e134b444f89fe90873234e894e21a
https://git.kernel.org/stable/c/a6b5070721503fb6021ebed51c925ffc66b1c5ab
https://git.kernel.org/stable/c/af7bb0d2ca459f15cb5ca604dab5d9af103643f0
https://git.kernel.org/stable/c/b519f2e5800fe2391b7545ba6889df795828e885
https://git.kernel.org/stable/c/e2d8e7bd3314485e0b3b08380c659b3d1d67ed6a
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.23

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.