Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: mptcp: Ensure that sndnxt is properly initialized upon connection. Christoph reported a crash hinting at a corrupted snduna: WARNING: CPU: 1 PID: 38 at net/mptcp/protocol.c:1005 mptcpcleanuna+0x4b3/0x620...

kernel: mptcp: ensure snd_una is properly initialized on connect

A vulnerability was found in the Linux kernel's match component in the initialization of the snduna variable while establishing a connection. The issue arises when retransmission occurs after a fallback, leaving the snduna sequence number uninitialized, leading to unpredictable behavior and...