NULL pointer dereference in Linux kernel clk mediatek driver

1) NULL pointer dereference

EUVDB-ID: #VU90433

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-2023-52858

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 mtk_topckgen_init(), mtk_infrasys_init() and mtk_pericfg_init() functions in drivers/clk/mediatek/clk-mt7629.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/e8ae4b49dd9cfde69d8de8c0c0cd7cf1b004482e
http://git.kernel.org/stable/c/4f861b63945e076f9f003a5fad958174096df1ee
http://git.kernel.org/stable/c/e964d21dc034b650d719c4ea39564bec72b42f94
http://git.kernel.org/stable/c/a836efc21ef04608333d6d05753e558ebd1f85d0
http://git.kernel.org/stable/c/1d89430fc3158f872d492f1b88d07262f48290c0
http://git.kernel.org/stable/c/5fbea47eebff5daeca7d918c99289bcd3ae4dc8d
http://git.kernel.org/stable/c/2befa515c1bb6cdd33c262b909d93d1973a219aa

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.