Memory leak in Linux kernel disp mdp5 driver

1) Memory leak

EUVDB-ID: #VU104290

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:U/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-49467

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

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

The vulnerability exists due to memory leak within the mdp5_crtc_cursor_set() function in drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.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

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/33546183c16c7b9650682dc610bedd732d9c6919
https://git.kernel.org/stable/c/449374565f349d4233beec811d4286fdfe5de44b
https://git.kernel.org/stable/c/656aa3c51fc662064f17179b38ec3ce43af53bca
https://git.kernel.org/stable/c/947a844bb3ebff0f4736d244d792ce129f6700d7
https://git.kernel.org/stable/c/d544880482a5558ec06393b1b3d5dc9275b7a32b
https://git.kernel.org/stable/c/d63ffe3fb3f8327ca21cf91b6a14a2961bc629b4
https://git.kernel.org/stable/c/f8cd192752a1f613b14eee77783c6f0aebb49691

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.