syzbot


possible deadlock in userfaultfd_release
Status: upstream: reported C repro on 2018/10/27 13:18
Reported-by: syzbot+53c0b767f7ca0dc0c451@syzkaller.appspotmail.com
First crash: 241d, last: 10h02m

Bisection: introduced by (bisect log):

commit bfe4037e722ec672c9dafd5730d9132afeeb76e9
Author: Christoph Hellwig <hch@lst.de>
Date: Mon Jul 16 07:08:20 2018 +0000

  aio: implement IOCB_CMD_POLL

Tree: upstream
Crash: possible deadlock in free_ioctx_users (log)
Repro: C syz .config
similar bugs (1):
Kernel Title Repro Bisected Count Last Reported Patched Status
linux-4.19 possible deadlock in userfaultfd_release C 4 4d13h 9d11h 0/1 upstream: reported C repro on 2019/06/16 21:11

Sample crash report:

All crashes (136):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-kasan-gce-root 2018/10/27 12:07 upstream 345671ea a8292de9 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2019/06/17 11:45 upstream 963172d9 442206d7 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2019/06/17 11:31 upstream 963172d9 442206d7 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2019/06/17 09:54 upstream 963172d9 442206d7 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce 2019/06/17 06:39 upstream 963172d9 442206d7 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2019/06/17 05:28 upstream 963172d9 442206d7 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2019/06/17 00:20 upstream 963172d9 442206d7 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2019/06/16 21:31 upstream e01e060f 442206d7 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce 2019/06/16 20:49 upstream e01e060f 442206d7 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2019/04/06 02:38 upstream 7f46774c fa763482 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2019/04/06 02:38 upstream 7f46774c fa763482 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2019/04/06 02:36 upstream 7f46774c fa763482 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce 2019/04/06 02:08 upstream 7f46774c fa763482 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce 2019/04/04 09:25 upstream 8ed86627 d6fc4177 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2019/04/04 00:03 upstream 8ed86627 d6fc4177 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2019/04/03 18:42 upstream a816fd6b dfd3394d .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce 2019/04/03 18:37 upstream a816fd6b dfd3394d .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce 2019/04/03 17:20 upstream a816fd6b dfd3394d .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2019/04/03 09:40 upstream a816fd6b dfd3394d .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2019/04/02 23:51 upstream 5e7a8ca3 dfd3394d .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2019/04/02 17:22 upstream 5e7a8ca3 dfd3394d .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2019/04/02 17:21 upstream 5e7a8ca3 dfd3394d .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2019/04/02 17:00 upstream 5e7a8ca3 dfd3394d .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2019/04/02 01:33 upstream 5e7a8ca3 a9ca43d4 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2019/04/02 01:02 upstream 5e7a8ca3 a9ca43d4 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2019/03/29 01:07 upstream 1a9df9e2 14c58f8d .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2019/03/28 23:00 upstream 8c7ae38d 14c58f8d .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce 2019/03/28 21:55 upstream 1a9df9e2 14c58f8d .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2019/03/28 21:31 upstream 1a9df9e2 14c58f8d .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce 2019/02/16 01:02 upstream 5ded5871 f42dee6d .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2019/02/09 10:10 upstream 46c291e2 fa6c7b70 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce 2019/02/09 09:10 upstream 46c291e2 fa6c7b70 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2019/02/09 09:10 upstream 46c291e2 fa6c7b70 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2019/02/09 08:43 upstream 46c291e2 fa6c7b70 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-386 2019/06/17 06:37 upstream 963172d9 442206d7 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-386 2019/06/16 20:48 upstream e01e060f 442206d7 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-386 2019/05/16 13:50 upstream 83f3ef3d f59a9cb5 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-386 2019/04/06 02:37 upstream 7f46774c fa763482 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-386 2019/04/03 11:21 upstream a816fd6b dfd3394d .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-386 2019/04/02 17:32 upstream 5e7a8ca3 dfd3394d .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-386 2019/04/01 21:05 upstream 5e7a8ca3 a9ca43d4 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-386 2019/03/28 22:43 upstream 8c7ae38d 14c58f8d .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-386 2019/02/09 09:49 upstream 46c291e2 fa6c7b70 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-386 2019/02/02 13:07 upstream cd984a5b c198d5dd .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2019/06/25 22:51 linux-next 90203176 0a8d1a96 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2019/06/25 11:59 linux-next 9ffadb46 82c13b6b .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2019/04/09 17:59 linux-next cfd24a53 995065ff .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2019/04/09 02:32 linux-next ac5b84a1 0dfb0452 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2019/04/08 12:27 linux-next ac5b84a1 c34fde03 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2019/03/28 21:55 linux-next 29eb5dc2 14c58f8d .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2019/02/16 00:34 linux-next 7a92eb7c f42dee6d .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2019/02/09 09:09 linux-next a46228f6 fa6c7b70 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk