#VU96527 NULL pointer dereference in Linux kernel - CVE-2024-43906

Vulnerability identifier: #VU96527

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-2024-43906

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 ta_if_invoke_debugfs_write() function in drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.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

---

External links
https://git.kernel.org/stable/c/641dac64178ccdb9e45c92b67120316896294d05
https://git.kernel.org/stable/c/4fd52f7c2c11d330571c6bde06e5ea508ec25c9d
https://git.kernel.org/stable/c/030ffd4d43b433bc6671d9ec34fc12c59220b95d

---

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.