syzbot has bisected this bug to: commit 97cdcf37b57e3f204be3000b9eab9686f38b4356 Author: Florian Westphal <fw@xxxxxxxxx> Date: Mon Apr 1 14:42:13 2019 +0000 net: place xmit recursion in softnet data bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11c04b0f200000 start commit: e1427237 macsec: add noinline tag to avoid a frame size wa.. git tree: net-next final crash: https://syzkaller.appspot.com/x/report.txt?x=13c04b0f200000 console output: https://syzkaller.appspot.com/x/log.txt?x=15c04b0f200000 kernel config: https://syzkaller.appspot.com/x/.config?x=8e9bc94c16d346a6 dashboard link: https://syzkaller.appspot.com/bug?extid=51471b4aae195285a4a3 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=156ffb07200000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14412673200000 Reported-by: syzbot+51471b4aae195285a4a3@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: 97cdcf37b57e ("net: place xmit recursion in softnet data") For information about bisection process see: https://goo.gl/tpsmEJ#bisection