#VU90441 Memory leak in Linux kernel - CVE-2021-47490
Published: May 31, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU90441
Vulnerability risk: 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-2021-47490
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 ttm_transfered_destroy() function in drivers/gpu/drm/ttm/ttm_bo_util.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/bd99782f3ca491879e8524c89b1c0f40071903bd
- https://git.kernel.org/stable/c/960b1fdfc39aba8f41e9e27b2de0c925c74182d9
- https://git.kernel.org/stable/c/c21b4002214c1c7e7b627b9b53375612f7aab6db
- https://git.kernel.org/stable/c/bbc920fb320f1c241cc34ac85edaa0058922246a
- https://git.kernel.org/stable/c/132a3d998d6753047f22152731fba2b0d6b463dd
- https://git.kernel.org/stable/c/0db55f9a1bafbe3dac750ea669de9134922389b5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.77
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.78
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.157
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.158