GHSA-x34g-xjxv-fc48

GHSA-x34g-xjxv-fc48 PUBLISHED CVSS 5.5 MEDIUM

Record from GitHub Advisory Database · Published December 2, 2024

In the Linux kernel, the following vulnerability has been resolved: mptcp: cope racing subflow creation in mptcp_rcv_space_adjust 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 received on an already established subflow would unconditionally call tcp_cleanup_rbuf() on all the current subflows, potentially hitting a divide by zero error on the newly created ones. Explicitly check that the subflow is in a suitable state before invoking tcp_cleanup_rbuf().

Risk scores

CVSS 3.1

5.5

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Timeline

Dec 2, 2024 CVE Published
May 1, 2026 Security Advisory

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vulnetix vdb vuln GHSA-x34g-xjxv-fc48
vulnetix vdb fixes GHSA-x34g-xjxv-fc48

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