syzbot


BUG: unable to handle kernel paging request in rhashtable_jhash2
Status: internal: reported C repro on 2020/01/15 19:27
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: 41cdc741 netdevsim: fix nsim_fib6_rt_create() error path
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-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-kmsan-gce]
First crash: 32d, last: 31d

Cause bisection: introduced by (bisect log):

commit 48bb9eb47b2708bd3ded16684ddd258e53bd402c
Author: Ido Schimmel <idosch@mellanox.com>
Date: Tue Jan 14 11:23:15 2020 +0000

  netdevsim: fib: Add dummy implementation for FIB offload

Crash: BUG: unable to handle kernel paging request in rhashtable_jhash2 (log)
Repro: C syz .config

Sample crash report:

Crashes (6):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-net-kasan-gce 2020/01/15 19:54 net-next 4e2fa6b9 f9b69507 .config log report syz C davem@davemloft.net, jakub.kicinski@netronome.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org
ci-upstream-net-kasan-gce 2020/01/16 18:02 net-next 1ccf6c13 3de7aabb .config log report davem@davemloft.net, jakub.kicinski@netronome.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org
ci-upstream-net-kasan-gce 2020/01/16 16:07 net-next 1ccf6c13 3de7aabb .config log report davem@davemloft.net, jakub.kicinski@netronome.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org
ci-upstream-net-kasan-gce 2020/01/16 13:53 net-next 1ccf6c13 3de7aabb .config log report davem@davemloft.net, jakub.kicinski@netronome.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org
ci-upstream-net-kasan-gce 2020/01/16 01:44 net-next 4e2fa6b9 f9b69507 .config log report davem@davemloft.net, jakub.kicinski@netronome.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org
ci-upstream-net-kasan-gce 2020/01/15 19:26 net-next 4e2fa6b9 f9b69507 .config log report davem@davemloft.net, jakub.kicinski@netronome.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org