syzbot


WARNING: locking bug in dev_mc_seq_show
Status: upstream: reported C repro on 2020/05/26 17:14
Reported-by: syzbot+f3a0e80c34b3fc28ac5e@syzkaller.appspotmail.com
Fix commit: 845e0ebb net: change addr_list_lock back to static key
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-upstream-bpf-kasan-gce ci-upstream-gce-leak ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-upstream-bpf-next-kasan-gce ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386]
First crash: 42d, last: 28d

Cause bisection: introduced by (bisect log):

commit 75a1a607bb7e6d918be3aca11ec2214a275392f4
Author: Daniel Borkmann <daniel@iogearbox.net>
Date: Fri Nov 1 23:17:57 2019 +0000

  uaccess: Add strict non-pagefault kernel-space read function

Crash: general protection fault in process_one_work (log)
Repro: C syz .config

Sample crash report:

Crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-kasan-gce-smack-root 2020/05/23 12:07 upstream 44456565 9682898d .config log report syz C davem@davemloft.net, jiri@mellanox.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org
ci-upstream-kasan-gce 2020/06/06 17:38 upstream 7ae77150 e6b89e4e .config log report davem@davemloft.net, jiri@mellanox.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/06/02 16:25 upstream f3592877 52fd7b7d .config log report davem@davemloft.net, jiri@mellanox.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org