syzbot


BUG: unable to handle kernel NULL pointer dereference in loop_rw_iter
Status: fixed on 2020/09/16 22:51
Reported-by: syzbot+1abbd16e49910f6bbe45@syzkaller.appspotmail.com
Fix commit: 2dd2111d io_uring: Fix NULL pointer dereference in loop_rw_iter()
First crash: 52d, last: 38d

Cause bisection: introduced by (bisect log):

commit 33c84e89abe4a92ab699c33029bd54269d574782
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Thu Jan 30 02:16:16 2020 +0000

  Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Crash: WARNING: ODEBUG bug in netdev_run_todo (log)
Repro: C syz .config

Sample crash report:

Crashes (24):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-kasan-gce-root 2020/08/11 07:15 upstream fc80c51f 7adc7b65 .config log report syz C axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2020/08/10 04:33 upstream 9420f1ce 70301872 .config log report syz C axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2020/08/09 21:43 upstream 06a81c1c 70301872 .config log report syz C axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2020/08/09 08:42 upstream 06a81c1c f721e4a0 .config log report syz C axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2020/08/09 04:55 upstream 449dc8c9 f721e4a0 .config log report syz C axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2020/08/07 19:59 upstream d6efb3ac cb436c69 .config log report syz C axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2020/08/13 09:20 linux-next bc09acc9 bc15f7db .config log report syz C axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2020/08/13 05:31 linux-next bc09acc9 bc15f7db .config log report syz C axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2020/08/16 00:17 upstream c9c9735c 424dd8e7 .config log report axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2020/08/15 22:08 upstream c9c9735c 424dd8e7 .config log report axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2020/08/14 18:01 upstream a1d21081 424dd8e7 .config log report axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2020/08/14 16:00 upstream a1d21081 424dd8e7 .config log report axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2020/08/13 10:52 upstream fb893de3 bc15f7db .config log report axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2020/08/13 09:15 upstream fb893de3 bc15f7db .config log report axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2020/08/13 09:09 upstream fb893de3 bc15f7db .config log report axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2020/08/11 21:34 upstream 00e4db51 bacaf5fa .config log report axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2020/08/11 18:15 upstream 00e4db51 bacaf5fa .config log report axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2020/08/08 11:27 upstream 5631c5e0 ff51e522 .config log report axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2020/08/07 19:32 upstream d6efb3ac cb436c69 .config log report axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2020/08/07 15:11 upstream d6efb3ac cb436c69 .config log report axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-qemu-upstream-386 2020/08/22 05:35 upstream 00e4db51 6436ce4b .config log report axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-qemu-upstream-386 2020/08/20 02:00 upstream 00e4db51 ed282a3a .config log report axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2020/08/13 09:06 linux-next bc09acc9 bc15f7db .config log report axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2020/08/10 20:22 linux-next f80535b9 7adc7b65 .config log report axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk