#VU97841 Input validation error in Linux kernel - CVE-2024-46821

Vulnerability identifier: #VU97841

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-2024-46821

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 navi10_get_current_clk_freq_by_table(), navi10_emit_clk_levels(), navi10_print_clk_levels() and navi10_force_clk_levels() functions in drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.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/60f4a4bc3329e5cb8c4df0cc961f0d5ffd96e22d
https://git.kernel.org/stable/c/4711b1347cb9f0c3083da6d87c624d75f9bd1d50
https://git.kernel.org/stable/c/06a3810010b525b9958424e344f0c25b09e128fa
https://git.kernel.org/stable/c/c8c19ebf7c0b202a6a2d37a52ca112432723db5f

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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.