Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-011071)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011071 advisory. In the Linux kernel, the following vulnerability has been resolved: l2tp: Avoid possible recursive deadlock in l2tptunnelregister When a file descriptor of pppol2tp...

SUSE CVE-2023-53809

In the Linux kernel, the following vulnerability has been resolved: l2tp: Avoid possible recursive deadlock in l2tptunnelregister When a file descriptor of pppol2tp socket is passed as file descriptor of UDP socket, a recursive deadlock occurs in l2tptunnelregister. This situation is reproduced b...

CVE-2023-53809

The CVE-2023-53809 issue affects the Linux kernel where passing a pppol2tp socket as a UDP socket to l2tp_tunnel_register() could trigger a recursive locking deadlock. Root cause: a lock order condition allowed deadlock when a socket path led to nested locking of sk_lock-AF_PPPOX. The advisory no...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel, which stems from the fact that l2tptunnelregister can cause a recursive deadlock when passing pppol2tp file descriptors...

SUSE CVE-2023-53020

In the Linux kernel, the following vulnerability has been resolved: l2tp: close all race conditions in l2tptunnelregister The code in l2tptunnelregister is racy in several ways: 1. It modifies the tunnel socket after publishing it. 2. It calls setupudptunnelsock on an existing socket without...

CVE-2023-53020 l2tp: close all race conditions in l2tp_tunnel_register()

In the Linux kernel, the following vulnerability has been resolved: l2tp: close all race conditions in l2tptunnelregister The code in l2tptunnelregister is racy in several ways: 1. It modifies the tunnel socket after publishing it. 2. It calls setupudptunnelsock on an existing socket without...

GSD-2023-1002156 l2tp: close all race conditions in l2tp_tunnel_register()

l2tp: close all race conditions in l2tptunnelregister This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.166 by commit...

PT-2023-35155 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v5.15.91 Description: The issue is related to race conditions in the l2tp tunnel register function. The actual impact and attack plausibility have not yet been proven. Recommendations: For Linux Kernel versions...