Memory leak in Linux kernel - CVE-2021-47144
Published: June 10, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU91652
CSH Severity: Low
CVSSv4.0: 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
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 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.
Remediation
Install update from vendor's website.
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