#VU96853 NULL pointer dereference in Linux kernel - CVE-2024-44955

Vulnerability identifier: #VU96853

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-2024-44955

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 amdgpu_dm_mst_connector_early_unregister(), dm_dp_mst_detect() and is_dsc_need_re_compute() functions in drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.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/39b217193729aa45eded8de24d9245468a0c0263
https://git.kernel.org/stable/c/fcf6a49d79923a234844b8efe830a61f3f0584e4

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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.