Vulnerability identifier: #VU94436

Vulnerability 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-2022-48843

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 EXPORT_SYMBOL() function in drivers/gpu/drm/drm_connector.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel:

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External links
http://git.kernel.org/stable/c/941e8bcd2b2ba95490738e33dfeca27168452779
http://git.kernel.org/stable/c/0ba557d330946c23559aaea2d51ea649fdeca98a
http://git.kernel.org/stable/c/3534c5c005ef99a1804ed50b8a72cdae254cabb5
http://git.kernel.org/stable/c/85271e92ae4f13aa679acaa6cf76b3c36bcb7bab
http://git.kernel.org/stable/c/62929726ef0ec72cbbe9440c5d125d4278b99894

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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.