#VU104625 NULL pointer dereference in Linux kernel - CVE-2022-49071

Vulnerability identifier: #VU104625

Vulnerability 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-2022-49071

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 ili9341_dbi_probe() function in drivers/gpu/drm/panel/panel-ilitek-ili9341.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 5.16, 5.16 rc1, 5.16 rc2, 5.16 rc3, 5.16 rc4, 5.16 rc5, 5.16 rc6, 5.16 rc8, 5.16.0, 5.16.1, 5.16.2, 5.16.3, 5.16.4, 5.16.5, 5.16.6, 5.16.7, 5.16.8, 5.16.9, 5.16.10, 5.16.11, 5.16.12, 5.16.13, 5.16.14, 5.16.15, 5.16.16, 5.16.17, 5.16.18, 5.16.19

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External links
https://git.kernel.org/stable/c/28dc1503a9d36654f9c61adb2915682515a30f71
https://git.kernel.org/stable/c/4ea189854b1e625ed5ec80d30147870f984db44c
https://git.kernel.org/stable/c/d14eb80e27795b7b20060f7b151cdfe39722a813
https://git.kernel.org/stable/c/e3d982c111a6c033671dd6084b07f62fbf50f76f
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.20

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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.