#VU120806 Improper locking in Linux kernel - CVE-2023-54306
Published: December 30, 2025 / Updated: December 30, 2025
Vulnerability identifier: #VU120806
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-2023-54306
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 tls_sw_sendmsg(), tls_sw_sendpage() and tx_work_handler() functions in net/tls/tls_sw.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/1f800f6aae57d2d8f63d32fff383017cbc11cf65
- https://git.kernel.org/stable/c/7123a4337bf73132bbfb5437e4dc83ba864a9a1e
- https://git.kernel.org/stable/c/bde541a57b4204d0a800afbbd3d1c06c9cdb133f
- https://git.kernel.org/stable/c/be5d5d0637fd88c18ee76024bdb22649a1de00d6
- https://git.kernel.org/stable/c/ccf1ccdc5926907befbe880b562b2a4b5f44c087
- https://git.kernel.org/stable/c/f3221361dc85d4de22586ce8441ec2c67b454f5d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.173
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.100
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.235
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.18
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3