#VU89971 Memory leak in Linux kernel - CVE-2021-47423
Published: May 30, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU89971
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-2021-47423
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 drivers/gpu/drm/nouveau/nouveau_debugfs.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/df0c9418923679bc6d0060bdb1b5bf2c755159e0
- https://git.kernel.org/stable/c/9f9d4c88b2edc7924e19c44909cfc3fa4e4d3d43
- https://git.kernel.org/stable/c/1508b09945bde393326a9dab73b1fc35f672d771
- https://git.kernel.org/stable/c/11cd944bb87d9e575b94c07c952105eda745b459
- https://git.kernel.org/stable/c/f69556a42043b5444ca712ee889829ba89fdcba8
- https://git.kernel.org/stable/c/88c3610045ca6e699331b6bb5c095c5565f30721
- https://git.kernel.org/stable/c/f5a8703a9c418c6fc54eb772712dfe7641e3991c
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.251
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.211
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.287
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.73
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.153