#VU91624 Memory leak in Linux kernel - CVE-2021-47401
Published: June 10, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU91624
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-2021-47401
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 ipoctal_inst_slot() and __ipoctal_remove() functions in drivers/ipack/devices/ipoctal.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/acb96e782bad427ca4bb1bd94af660acd1462380
- https://git.kernel.org/stable/c/741ea2670e021350e54f491106bdaa22dc50e6a0
- https://git.kernel.org/stable/c/2725925982dc96a78069cd118ea3d66759bfdad7
- https://git.kernel.org/stable/c/829f13d6079cf7a2465522f39acb43033e9b320d
- https://git.kernel.org/stable/c/8657158a3b68c85234e6da3d8eae33d6183588b7
- https://git.kernel.org/stable/c/5f6a309a699675680df15d9b6d389114515b4426
- https://git.kernel.org/stable/c/0a9c36a2e06a249acbed64e8e0b84637c2ad7575
- https://git.kernel.org/stable/c/a89936cce87d60766a75732a9e7e25c51164f47c
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.249
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.209
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.286
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.285
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.71
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.151