#VU90027 Memory leak in Linux kernel - CVE-2021-47074
Published: May 30, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU90027
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-2021-47074
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 nvme_loop_create_ctrl() function in drivers/nvme/target/loop.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/9c980795ccd77e8abec33dd6fe28dfe1c4083e65
- https://git.kernel.org/stable/c/551ba08d4b7eb26f75758cdb9f15105b276517ad
- https://git.kernel.org/stable/c/03504e3b54cc8118cc26c064e60a0b00c2308708
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.40
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.7
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13