Hello, syzbot has tested the proposed patch and the reproducer did not trigger crash: Reported-and-tested-by: syzbot+a4aee3f42d7584d76761@xxxxxxxxxxxxxxxxxxxxxxxxx Tested on: commit: e154659b mptcp: fix double-unlock in mptcp_poll git tree: net kernel config: https://syzkaller.appspot.com/x/.config?x=5af684c50f30bcb2 dashboard link: https://syzkaller.appspot.com/bug?extid=a4aee3f42d7584d76761 compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81) patch: https://syzkaller.appspot.com/x/patch.diff?x=144e124fe00000 Note: testing is done by a robot and is best-effort only.