On Wed, 01 Feb 2023 20:55:28 -0800 > syzbot suspects this issue was fixed by commit: > > commit 1d80d57ffcb55488f0ec0b77928d4f82d16b6a90 > Author: Ying Hsu <yinghsu@xxxxxxxxxxxx> > Date: Wed Jan 11 03:16:14 2023 +0000 > > Bluetooth: Fix possible deadlock in rfcomm_sk_state_change > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=154b77b5480000 > start commit: d888c83fcec7 fs: fix fd table size alignment properly > git tree: upstream > kernel config: https://syzkaller.appspot.com/x/.config?x=69c8957f4ac2dea6 > dashboard link: https://syzkaller.appspot.com/bug?extid=d761775dff24be3ad4be > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=162ca1fd700000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1036182d700000 > > If the result looks correct, please mark the issue as fixed by replying with: > > #syz fix: Bluetooth: Fix possible deadlock in rfcomm_sk_state_change > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection If it is the correct fix then why was task hung reported instead of deadlock? What went wrong with lockdep at cffb2b72d3ed upstream? Hillf