#VU99093 Integer underflow in Linux kernel - CVE-2022-48990

Vulnerability identifier: #VU99093

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-48990

CWE-ID: CWE-191

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 execute arbitrary code.

The vulnerability exists due to integer underflow within the amdgpu_job_free_cb() function in drivers/gpu/drm/amd/amdgpu/amdgpu_job.c. A local user can execute arbitrary code.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/d2a89cd942edd50c1e652004fd64019be78b0a96
https://git.kernel.org/stable/c/3cb93f390453cde4d6afda1587aaa00e75e09617

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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.