NULL pointer dereference in Linux kernel hwmon driver

1) NULL pointer dereference

EUVDB-ID: #VU90426

Risk: Low

CVSSv3.1: 4.8 [AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-52863

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

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 axi_fan_control_probe() function in drivers/hwmon/axi-fan-control.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

http://git.kernel.org/stable/c/7d870088db4863c514a7f8751cd593751983029a
http://git.kernel.org/stable/c/b3e7eb23a6e97642ff3190431c06475d9ca1e062
http://git.kernel.org/stable/c/33de53a2706066d526173dc743faf43d92c62105
http://git.kernel.org/stable/c/f62b8969847850ba7596cb145cc47c65ea57dae0
http://git.kernel.org/stable/c/c49f14cc1bb12c625a1c572e8a95b6adefd4d8eb
http://git.kernel.org/stable/c/2a5b3370a1d9750eca325292e291c8c7cb8cf2e0

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.