#VU90794 Improper locking in Linux kernel - CVE-2024-26719

Vulnerability identifier: #VU90794

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-2024-26719

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 nouveau_fence_context_kill(), nouveau_fence_update(), nouveau_fence_wait_uevent_handler() and nouveau_fence_context_new() functions in drivers/gpu/drm/nouveau/nouveau_fence.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/cc0037fa592d56e4abb9c7d1c52c4d2dc25cd906
https://git.kernel.org/stable/c/985d053f7633d8b539ab1531738d538efac678a9
https://git.kernel.org/stable/c/39126abc5e20611579602f03b66627d7cd1422f0

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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.