#VU94275 Improper locking in Linux kernel - CVE-2024-40966
Published: July 13, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU94275
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-2024-40966
CWE-ID: CWE-667
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 improper locking within the con_cleanup() function in drivers/tty/vt/vt.c, within the tty_set_ldisc() function in drivers/tty/tty_ldisc.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/3c6332f3bb1578b5b10ac2561247b1d6272ae937
- https://git.kernel.org/stable/c/287b569a5b914903ba7c438a3c0dbc3410ebb409
- https://git.kernel.org/stable/c/5920ac19964f9e20181f63b410d9200ddbf8dc86
- https://git.kernel.org/stable/c/6bd23e0c2bb6c65d4f5754d1456bc9a4427fc59b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.96
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.36