#VU99225 Input validation error in Linux kernel - CVE-2024-49899

Vulnerability identifier: #VU99225

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-2024-49899

CWE-ID: CWE-20

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 input validation within the CalculateVMGroupAndRequestTimes() function in drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_shared.c, within the get_bytes_per_element() function in drivers/gpu/drm/amd/display/dc/dml/dml1_display_rq_dlg_calc.c, within the calculate_ttu_cursor() function in drivers/gpu/drm/amd/display/dc/dml/dcn20/display_rq_dlg_calc_20.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/7f8e93b862aba08d540f1e9e03e0ceb4d0cfd5fb
https://git.kernel.org/stable/c/b995c0a6de6c74656a0c39cd57a0626351b13e3c

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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.