SB2024071392 - Use of uninitialized resource in Linux kernel nouveau dispnv04 driver

Description

This security bulletin contains information about 1 vulnerability.

1) Use of uninitialized resource (CVE-ID: CVE-2024-40926)

CWE-ID: CWE-908 - Use of Uninitialized Resource

CVSSv4: 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

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.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/227349998e5740f14d531b0f0d704e66b1ed3c2f
• https://git.kernel.org/stable/c/b96a225377b6602299a03d2ce3c289b68cd41bb7
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10