#VU93769 Improper locking in Linux kernel - CVE-2024-26667

Vulnerability identifier: #VU93769

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-2024-26667

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 dpu_encoder_helper_phys_cleanup() function in drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.1 - 6.1.77, 6.6 - 6.6.16, 6.7 - 6.7.4, 6.8 rc1 - 6.8 rc5

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External links
https://git.kernel.org/stable/c/fb8bfc6ea3cd8c5ac3d35711d064e2f6646aec17
https://git.kernel.org/stable/c/79592a6e7bdc1d05460c95f891f5e5263a107af8
https://git.kernel.org/stable/c/eb4f56f3ff5799ca754ae6d811803a63fe25a4a2
https://git.kernel.org/stable/c/7f3d03c48b1eb6bc45ab20ca98b8b11be25f9f52
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.78
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.17
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.5
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?