#VU97792 NULL pointer dereference in Linux kernel - CVE-2024-46803

Vulnerability identifier: #VU97792

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-2024-46803

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 debug_event_write_work_handler() and kfd_dbg_trap_disable() functions in drivers/gpu/drm/amd/amdkfd/kfd_debug.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/e6ea3b8fe398915338147fe54dd2db8155fdafd8
https://git.kernel.org/stable/c/820dcbd38a77bd5fdc4236d521c1c122841227d0
https://git.kernel.org/stable/c/547033b593063eb85bfdf9b25a5f1b8fd1911be2

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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.