#VU96836 Use-after-free in Linux kernel - CVE-2024-44979

Vulnerability identifier: #VU96836

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-44979

CWE-ID: CWE-416

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 escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the pf_queue_work_func() and xe_gt_pagefault_init() functions in drivers/gpu/drm/xe/xe_gt_pagefault.c. A local user can escalate privileges on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.10, 6.10.1, 6.10.2, 6.10.3, 6.10.4, 6.10.5, 6.10.6

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External links
https://git.kernel.org/stable/c/b09ef3b762a7fc641fb2f89afd3ebdb65b8ba1b9
https://git.kernel.org/stable/c/a6f78359ac75f24cac3c1bdd753c49c1877bcd82
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.7
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11

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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.