#VU89924 Memory leak in Linux kernel - CVE-2021-47516
Published: May 30, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU89924
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-2021-47516
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 nfp_cpp_area_cache_add() function in drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.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/3e93abcdcec0436fbf0b6a88ae806902426895a2
- https://git.kernel.org/stable/c/eb51f639ef3fd5498b7def290ed8681b6aadd9a7
- https://git.kernel.org/stable/c/2e0e072e62fdaf7816220af08e05c020f0fcb77a
- https://git.kernel.org/stable/c/484069b5de9d223cc1c64c6f80389a99cfef51f1
- https://git.kernel.org/stable/c/f707820c09239d6f67699d9b2ff57863cc7905b0
- https://git.kernel.org/stable/c/c56c96303e9289cc34716b1179597b6f470833de
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.258
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.221
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.85
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.165