kernel: mptcp: cope racing subflow creation in mptcp_rcv_space_adjust

A divide by zero flaw was found in the Linux kernel's Multipath TCP MPTCP. This issue could allow a remote user to crash the system...

CVE-2024-53122

In the Linux kernel, the following vulnerability has been resolved: mptcp: cope racing subflow creation in mptcprcvspaceadjust Additional active subflows - i.e. created by the in kernel path manager - are included into the subflow list before starting the 3whs. A racing recvmsg spooling data...