#VU104404 Memory leak in Linux kernel - CVE-2021-47643
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104404
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-2021-47643
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 irtoy_probe() function in drivers/media/rc/ir_toy.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/2011363c196846c083649c91ed30aeef64358d52
- https://git.kernel.org/stable/c/382e0f6958ef34eb093127b6d74c12f3b8fd0904
- https://git.kernel.org/stable/c/52cdb013036391d9d87aba5b4fc49cdfc6ea4b23
- https://git.kernel.org/stable/c/93ef3fdf3b6633c58f049e5a6be755777dde4340
- https://git.kernel.org/stable/c/99e3f83539cac6884a4df02cb204a57a184ea12b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.110