#VU96528 NULL pointer dereference in Linux kernel - CVE-2024-43905

Vulnerability identifier: #VU96528

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-2024-43905

CWE-ID: CWE-476

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 NULL pointer dereference within the vega10_find_dpm_states_clocks_in_dpm_table(), vega10_generate_dpm_level_enable_mask(), vega10_check_states_equal(), vega10_set_sclk_od(), vega10_set_mclk_od(), vega10_odn_update_power_state() and vega10_get_performance_level() functions in drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_hwmgr.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/c2629daf218a325f4d69754452cd42fe8451c15b
https://git.kernel.org/stable/c/2e538944996d0dd497faf8ee81f8bfcd3aca7d80
https://git.kernel.org/stable/c/69a441473fec2fc2aa2cf56122d6c42c4266a239
https://git.kernel.org/stable/c/50151b7f1c79a09117837eb95b76c2de76841dab

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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.