Resource management error in Linux kernel drm i915 driver

1) Resource management error

EUVDB-ID: #VU93301

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-2021-46976

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

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

The vulnerability exists due to resource management error within the auto_active() function in drivers/gpu/drm/i915/i915_active.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/805c990a9c54b9451d3daff640b850909c31ab9d
http://git.kernel.org/stable/c/608441de3976c526b02af4d7063093c8adf351e3
http://git.kernel.org/stable/c/f7520970d5353cb1fa4d9089a1b23669c5da97fe
http://git.kernel.org/stable/c/402be8a101190969fc7ff122d07e262df86e132b

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.