#VU92290 Memory leak in Linux kernel - CVE-2021-47585
Published: June 20, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU92290
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-2021-47585
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 fs/btrfs/tree-log.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/005d9292b5b2e71a009f911bd85d755009b37242
- https://git.kernel.org/stable/c/493ff661d434d6bdf02e3a21adae04d7a0b4265d
- https://git.kernel.org/stable/c/f35838a6930296fc1988764cfa54cb3f705c0665
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.88
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16