CVE-2026-80588 — mptcp: reclaim forward-allocated memory on RX path errors
In the Linux kernel, the following vulnerability has been resolved: mptcp: reclaim forward-allocated memory on RX path errors After commit 9db5b3cec4ec ("mptcp: borrow forward…
Published: 2026-08-26 · CVSS: 7.5 · CVSS 3.1
In the Linux kernel, the following vulnerability has been resolved: mptcp: reclaim forward-allocated memory on RX path errors After commit 9db5b3cec4ec ("mptcp: borrow forward memory from subflow"), errors in the receive path prior to queueing skbs into the receive queue do not trigger forward-allocated memory reclaiming. Prevent forward memory from growing unboundedly in pathological drop scenarios by explicitly reclaiming memory when skbs are dropped.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7