#VU90412 NULL pointer dereference in Linux kernel - CVE-2023-52738

Vulnerability identifier: #VU90412

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-2023-52738

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_fence_driver_sw_fini() function in drivers/gpu/drm/amd/amdgpu/amdgpu_fence.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/2e557c8ca2c585bdef591b8503ba83b85f5d0afd
https://git.kernel.org/stable/c/2bcbbef9cace772f5b7128b11401c515982de34b
https://git.kernel.org/stable/c/5ad7bbf3dba5c4a684338df1f285080f2588b535

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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.