CVE-2026-45889

A flaw was found in the Linux kernel's Multipath TCP MPTCP implementation. This vulnerability occurs due to incorrect accounting for out-of-order OoO data in the mptcprcvbufgrow function. A subtle and very unlikely race condition could lead to a divide-by-zero error, potentially causing a system...

CVE-2026-45889

In the Linux kernel, the following vulnerability has been resolved: mptcp: do not account for OoO in mptcprcvbufgrow MPTCP-level OoOs are physiological when multiple subflows are active concurrently and will not cause retransmissions nor are caused by drops. Accounting for them in mptcprcvbufgrow...