Memory leak in Linux kernel amd amdgpu driver



| Updated: 2025-05-13
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-47144
CWE-ID CWE-401
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Memory leak

EUVDB-ID: #VU91652

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-47144

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 amdgpu_fbdev_destroy() function in drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 4.19 - 5.13 rc5

CPE2.3 External links

https://git.kernel.org/stable/c/599e5d61ace952b0bb9bd942b198bbd0cfded1d7
https://git.kernel.org/stable/c/dde2656e0bbb2ac7d83a7bd95a8d5c3c95bbc009
https://git.kernel.org/stable/c/9fdb8ed37a3a44f9c49372b69f87fd5f61cb3240
https://git.kernel.org/stable/c/95a4ec905e51a30c64cf2d78b04a7acbeae5ca94
https://git.kernel.org/stable/c/fa7e6abc75f3d491bc561734312d065dc9dc2a77
https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.193
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.42
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.9
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.124


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.



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