PT-2026-82115

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A reference count leak occurs in the L2TP module when userspace closes /proc/net/pppol2tp or /sys/kernel/debug/l2tp/tunnels before reaching the end-of-file. The iteration state,...

Setup IPsec VPN — Updated!

English | 简体中文 | 繁體中文 | 日本語 | Русский IPsec VPN Server Auto Setup Scripts Set up your own IPsec VPN server in just a few minutes, with IPsec/L2TP, Cisco IPsec and IKEv2. An IPsec VPN encrypts your network traffic, so that nobody between you and the VPN server can eavesdrop on your data as it...

The vulnerability in the `net/l2tp/l2tp_core.c` component of the Linux operating system allows a hacker to trigger a service failure.

The vulnerability of the net/l2tp/l2tpcore.c component in the Linux operating system is related to improper memory release before deleting the last reference. Exploiting this vulnerability can allow an attacker to cause a service failure...

UBUNTU-CVE-2026-68433

In the Linux kernel, the following vulnerability has been resolved: libceph: bound getversion reply decode to front len handlegetversionreply uses msg-frontalloclen as the decode boundary for MONGETVERSIONREPLY. That is the size of the reused reply buffer, not the number of bytes actually receive...

CVE-2026-68398

A flaw was found in the Linux kernel's Point-to-Point Protocol PPP over L2TP Layer 2 Tunneling Protocol implementation. An unprivileged user can exploit a Use-After-Free UAF vulnerability, where the system attempts to use memory after it has been freed. This can lead to memory corruption,...

CVE-2026-68398

In the Linux kernel, the following vulnerability has been resolved: ppp: defer channel free to an RCU grace period to fix pppol2tp RX UAF pppol2tprecv runs in the L2TP UDP-encap softirq RX path: l2tpudpencaprecv - l2tprecvcommon - pppol2tprecv - pppinput&po-chan It runs under rcureadlock holding...

EUVD-2026-55584

In the Linux kernel, the following vulnerability has been resolved: ppp: defer channel free to an RCU grace period to fix pppol2tp RX UAF pppol2tprecv runs in the L2TP UDP-encap softirq RX path: l2tpudpencaprecv - l2tprecvcommon - pppol2tprecv - pppinput&po-chan It runs under rcureadlock holding...

Setup IPsec VPN — Updated!

English | 简体中文 | 繁體中文 | 日本語 | Русский IPsec VPN Server Auto Setup Scripts Set up your own IPsec VPN server in just a few minutes, with IPsec/L2TP, Cisco IPsec and IKEv2. An IPsec VPN encrypts your network traffic, so that nobody between you and the VPN server can eavesdrop on your data as it...

Docker IPsec VPN Server — Updated!

English | 简体中文 | 繁體中文 | Русский IPsec VPN Server on Docker Docker image to run an IPsec VPN server, with IPsec/L2TP, Cisco IPsec and IKEv2. Based on Alpine 3.23 or Debian 12 with Libreswan IPsec VPN software and xl2tpd L2TP daemon. An IPsec VPN encrypts your network traffic, so that nobody betwee...

Setup IPsec VPN — Updated!

English | 简体中文 | 繁體中文 | 日本語 | Русский IPsec VPN Server Auto Setup Scripts Set up your own IPsec VPN server in just a few minutes, with IPsec/L2TP, Cisco IPsec and IKEv2. An IPsec VPN encrypts your network traffic, so that nobody between you and the VPN server can eavesdrop on your data as it...

Docker IPsec VPN Server — Updated!

English | 简体中文 | 繁體中文 | Русский IPsec VPN Server on Docker Docker image to run an IPsec VPN server, with IPsec/L2TP, Cisco IPsec and IKEv2. Based on Alpine 3.23 or Debian 12 with Libreswan IPsec VPN software and xl2tpd L2TP daemon. An IPsec VPN encrypts your network traffic, so that nobody betwee...

CVE-2026-63918

A flaw was found in the Linux kernel's Layer 2 Tunneling Protocol l2tp module. A race condition exists where a network session's memory could be prematurely released while still in use. This vulnerability, caused by incorrect reference counting, may allow a local attacker to trigger a system cras...

SUSE CVE-2026-63918

In the Linux kernel, the following vulnerability has been resolved: l2tp: use refcountincnotzero in l2tpsessiongetbyifname A reader in l2tpsessiongetbyifname can return a pointer to a session whose refcount has reached zero. The getter takes its reference with plain refcountinc, but every other...

SUSE CVE-2026-64119

In the Linux kernel, the following vulnerability has been resolved: l2tp: use listdelrcu in l2tpsessionunhash An unprivileged local user can pin a host CPU indefinitely in l2tpsessiongetbyifname by issuing L2TPCMDSESSIONGET on L2TPATTRIFNAME concurrently with L2TPCMDSESSIONCREATE and...

Linux Distros Unpatched Vulnerability : CVE-2026-64119

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: l2tp: use listdelrcu in l2tpsessionunhash An unprivileged local user can pin a host CPU...

Linux Distros Unpatched Vulnerability : CVE-2026-63918

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: l2tp: use refcountincnotzero in l2tpsessiongetbyifname A reader in l2tpsessiongetbyifname ca...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: ext4: replace BUGON with proper error handling in ext4readinlinefolio CVE-2026-31451 In the Linux kernel, the following vulnerability has been resolved: usb: cdns3: gadget: fix NULL pointer dereference in epqueue...

CVE-2026-64119

In the Linux kernel, the following vulnerability has been resolved: l2tp: use listdelrcu in l2tpsessionunhash An unprivileged local user can pin a host CPU indefinitely in l2tpsessiongetbyifname by issuing L2TPCMDSESSIONGET on L2TPATTRIFNAME concurrently with L2TPCMDSESSIONCREATE and...

CVE-2026-63918

In the Linux kernel, the following vulnerability has been resolved: l2tp: use refcountincnotzero in l2tpsessiongetbyifname A reader in l2tpsessiongetbyifname can return a pointer to a session whose refcount has reached zero. The getter takes its reference with plain refcountinc, but every other...

CVE-2026-64119 l2tp: use list_del_rcu in l2tp_session_unhash

In the Linux kernel, the following vulnerability has been resolved: l2tp: use listdelrcu in l2tpsessionunhash An unprivileged local user can pin a host CPU indefinitely in l2tpsessiongetbyifname by issuing L2TPCMDSESSIONGET on L2TPATTRIFNAME concurrently with L2TPCMDSESSIONCREATE and...