Information disclosure in Linux kernel - CVE-2021-47431
Published: June 8, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU91339
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-47431
CWE-ID: CWE-200
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to information disclosure within the gmc_v9_0_hw_fini() function in drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c, within the gmc_v10_0_hw_fini() function in drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c. A local user can gain access to sensitive information.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/83d857d6b0967b6709cd38750c3ce2ed8ced1a95
- https://git.kernel.org/stable/c/621ddffb70db824eabd63d18ac635180fe9500f9
- https://git.kernel.org/stable/c/18d1c5ea3798ba42cfa0f8b2264d873463facb03
- https://git.kernel.org/stable/c/66805763a97f8f7bdf742fc0851d85c02ed9411f
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.74
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.154