Unity Linux 20.1020e / 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-142477)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-142477 advisory. 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...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: ppp: Deferring the freeing of channels to an RCU callback via callrcu ensures that any ongoing pppol2tprecv operations are protected during the grace period. This prevents unexpected dereferencing of channels that were just...

Linux kernel Heap Buffer Overflow DoS

The vulnerability of the pppol2tprecv function in the drivers/net/ppp/pppgeneric.c module of the Linux kernel is related to the use of memory after it is freed, as a result of a pointer being dereferenced that has reached its expiration time. Exploiting this vulnerability could allow an attacker ...

CVE-2026-68398 ppp: defer channel free to an RCU grace period to fix pppol2tp RX UAF

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...

CVE-2026-68398: Undefined Security Weakness

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...

CVE-2026-68398: Undefined Security Weakness

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...

Linux Distros Unpatched Vulnerability : CVE-2026-68398

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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 - l2tprecvcommo...