NULL pointer dereference in Linux kernel drm bridge driver



| Updated: 2025-05-14
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-52861
CWE-ID CWE-476
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) NULL pointer dereference

EUVDB-ID: #VU90456

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-2023-52861

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 it66121_audio_get_eld() function in drivers/gpu/drm/bridge/ite-it66121.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.1 - 6.7 rc7

CPE2.3 External links

https://git.kernel.org/stable/c/2c80c4f0d2845645f41cbb7c9304c8efbdbd4331
https://git.kernel.org/stable/c/1669d7b21a664aa531856ce85b01359a376baebc
https://git.kernel.org/stable/c/1374561a7cbc9a000b77bb0473bb2c19daf18d86
https://git.kernel.org/stable/c/d0375f6858c4ff7244b62b02eb5e93428e1916cd
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.63
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.12
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.2
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7


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.



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