NULL pointer dereference in Linux kernel disp dpu1 driver

1) NULL pointer dereference

EUVDB-ID: #VU92912

Risk: Low

CVSSv3.1: 4.8 [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-2022-48749

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 dpu_setup_dspp_pcc() function in drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dspp.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

External links

http://git.kernel.org/stable/c/93a6e920d8ccb4df846c03b6e72f7e08843d294c
http://git.kernel.org/stable/c/8f069f6dde518dfebe86e848508c07e497bd9298
http://git.kernel.org/stable/c/1ebc18836d5df09061657f8c548e594cbb519476
http://git.kernel.org/stable/c/170b22234d5495f5e0844246e23f004639ee89ba

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.