#VU94292 Use of uninitialized resource in Linux kernel - CVE-2024-40926

Vulnerability identifier: #VU94292

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-2024-40926

CWE-ID: CWE-908

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 use of uninitialized resource within the nouveau_display_hpd_resume(), nouveau_display_fini() and nouveau_display_create() functions in drivers/gpu/drm/nouveau/nouveau_display.c, within the nv50_display_fini() function in drivers/gpu/drm/nouveau/dispnv50/disp.c, within the nv04_display_fini() function in drivers/gpu/drm/nouveau/dispnv04/disp.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/227349998e5740f14d531b0f0d704e66b1ed3c2f
https://git.kernel.org/stable/c/b96a225377b6602299a03d2ce3c289b68cd41bb7

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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.