CVE-2023-53490 mptcp: fix disconnect vs accept race

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix disconnect vs accept race Despite commit 0ad529d9fd2b "mptcp: fix possible divide by zero in recvmsg", the mptcp protocol is still prone to a race between disconnect or shutdown and accept. The root cause is that the...

kernel: mptcp: fix deadlock in __mptcp_push_pending()

A vulnerability was found in the Linux kernel's mptcp component in the mptcppushpending function, where a deadlock can occur when calling mptcpflushjoinlist with the subflow socket lock held. This happens if the synchronization function mptcpsockoptsyncall is invoked, causing the system to hang d...

kernel: mptcp: fix deadlock in __mptcp_push_pending()

A vulnerability was found in the Linux kernel's mptcp component in the mptcppushpending function, where a deadlock can occur when calling mptcpflushjoinlist with the subflow socket lock held. This happens if the synchronization function mptcpsockoptsyncall is invoked, causing the system to hang d...