Improper locking in Linux kernel msm dp driver

1) Improper locking

EUVDB-ID: #VU96360

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/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-2022-48898

CWE-ID: CWE-667 - Improper Locking

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper locking within the dp_aux_isr() function in drivers/gpu/drm/msm/dp/dp_aux.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/785607e5e6fb52caf141e4580de40405565f04f1
http://git.kernel.org/stable/c/984ad875db804948c86ca9e1c2e784ae8252715a
http://git.kernel.org/stable/c/b7dcbca46db3c77fdb02c2a9d6239e5aa3b06a59
http://git.kernel.org/stable/c/1cba0d150fa102439114a91b3e215909efc9f169

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.