syzbot


WARNING: suspicious RCU usage in __dev_queue_xmit
Status: upstream: reported C repro on 2022/01/10 10:37
Reported-by: syzbot+e163f2ff7c3f7efd8203@syzkaller.appspotmail.com
Fix commit: 6316136ec6e3 netfilter: egress: avoid a lockdep splat
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm32 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte 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-qemu2-riscv64 ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386]
First crash: 83d, last: 16d

Cause bisection: introduced by (bisect log) :
commit 42df6e1d221dddc0f2acf2be37e68d553ad65f96
Author: Lukas Wunner <lukas@wunner.de>
Date: Fri Oct 8 20:06:03 2021 +0000

  netfilter: Introduce egress hook

Crash: WARNING: suspicious RCU usage in __dev_queue_xmit (log)
Repro: C syz .config

Sample crash report:

Crashes (635):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2021/12/11 06:52 upstream b8a98b6bf66a 49ca1f59 .config log report syz C WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-net-this-kasan-gce 2021/12/08 01:34 net 2a62df369271 0230ba3e .config log report syz C WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-net-kasan-gce 2021/12/07 21:21 net-next 1c5526968e27 0230ba3e .config log report syz C WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-net-kasan-gce 2021/12/07 11:03 net-next 4c375272fb0b 0230ba3e .config log report syz C WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-kasan-gce 2022/01/11 05:55 upstream 133d9c53c9dc ddb0ab8c .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-kasan-gce-selinux-root 2022/01/10 22:19 upstream 133d9c53c9dc ddb0ab8c .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-kasan-gce-selinux-root 2022/01/10 17:41 upstream df0cc57e057f ddb0ab8c .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-kasan-gce-selinux-root 2022/01/10 04:04 upstream df0cc57e057f 2ca0d385 .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream 2022/01/09 23:49 upstream df0cc57e057f 2ca0d385 .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-kasan-gce 2022/01/09 22:14 upstream 4634129ad9fd 2ca0d385 .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-kasan-gce-selinux-root 2022/01/08 05:54 upstream d1587f7bfe9a 2ca0d385 .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-kasan-gce-selinux-root 2022/01/07 18:13 upstream ddec8ed2d490 2ca0d385 .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-kasan-gce 2022/01/07 16:29 upstream ddec8ed2d490 2ca0d385 .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-kasan-gce 2022/01/07 00:30 upstream b2b436ec0205 6acc789a .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream 2022/01/06 01:44 upstream 49ef78e59b07 6acc789a .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-kasan-gce 2022/01/05 15:54 upstream c9e6606c7fe9 6acc789a .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-kasan-gce-selinux-root 2022/01/04 17:26 upstream c9e6606c7fe9 0a2584dd .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream 2022/01/04 06:52 upstream c9e6606c7fe9 7f723fbe .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-kasan-gce 2022/01/04 04:39 upstream c9e6606c7fe9 7f723fbe .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-kasan-gce-selinux-root 2022/01/03 16:29 upstream c9e6606c7fe9 4a3f34f2 .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-kasan-gce-selinux-root 2022/01/01 21:43 upstream 278218f6778b e1768e9c .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-kasan-gce-root 2021/12/19 01:30 upstream 3f667b5d4053 44068e19 .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-kasan-gce-smack-root 2021/12/02 17:36 upstream 58e1100fdc59 61f86278 .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-kasan-gce-386 2022/01/10 21:02 upstream df0cc57e057f ddb0ab8c .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream-386 2022/01/10 19:31 upstream 133d9c53c9dc ddb0ab8c .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream-386 2022/01/10 02:25 upstream df0cc57e057f 2ca0d385 .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-kasan-gce-386 2022/01/09 14:30 upstream 4634129ad9fd 2ca0d385 .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream-386 2022/01/09 11:45 upstream 4634129ad9fd 2ca0d385 .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream-386 2022/01/08 23:48 upstream 21f35d2ca83e 2ca0d385 .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream-386 2022/01/08 11:04 upstream d1587f7bfe9a 2ca0d385 .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream-386 2022/01/08 07:10 upstream d1587f7bfe9a 2ca0d385 .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream-386 2022/01/07 21:45 upstream ddec8ed2d490 2ca0d385 .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream-386 2022/01/07 07:14 upstream b2b436ec0205 6acc789a .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream-386 2022/01/07 03:30 upstream b2b436ec0205 6acc789a .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream-386 2022/01/06 16:02 upstream 75acfdb6fd92 6acc789a .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-kasan-gce-386 2022/01/06 13:21 upstream 75acfdb6fd92 6acc789a .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream-386 2022/01/06 11:48 upstream 75acfdb6fd92 6acc789a .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream-386 2022/01/06 03:52 upstream 49ef78e59b07 6acc789a .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream-386 2022/01/05 20:22 upstream c9e6606c7fe9 6acc789a .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream-386 2022/01/05 18:40 upstream c9e6606c7fe9 6acc789a .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream-386 2022/01/04 20:05 upstream c9e6606c7fe9 0a2584dd .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream-386 2022/01/04 15:31 upstream c9e6606c7fe9 0a2584dd .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream-386 2022/01/04 03:31 upstream c9e6606c7fe9 7f723fbe .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream-386 2022/01/03 15:09 upstream c9e6606c7fe9 4a3f34f2 .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream-386 2022/01/03 10:01 upstream c9e6606c7fe9 e1768e9c .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream-386 2022/01/03 07:27 upstream c9e6606c7fe9 e1768e9c .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-kasan-gce-386 2022/01/02 20:04 upstream 1286cc4893cf e1768e9c .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream-386 2022/01/02 18:22 upstream 1286cc4893cf e1768e9c .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream-386 2022/01/01 23:50 upstream 278218f6778b e1768e9c .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-qemu-upstream-386 2022/01/01 09:28 upstream 800829388818 e1768e9c .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-net-kasan-gce 2022/01/09 20:06 net-next d5c8725cc913 2ca0d385 .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-net-kasan-gce 2022/01/09 17:43 net-next d5c8725cc913 2ca0d385 .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-net-kasan-gce 2022/01/08 22:43 net-next 82192cb497f9 2ca0d385 .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-net-kasan-gce 2022/01/08 21:01 net-next 82192cb497f9 2ca0d385 .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-net-kasan-gce 2022/01/07 06:57 net-next e4a3d6a6a19a 6acc789a .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-net-kasan-gce 2022/01/06 17:51 net-next 710ad98c363a 6acc789a .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-net-kasan-gce 2022/01/05 04:57 net-next ffd32ea6b13c 0a2584dd .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-net-kasan-gce 2022/01/04 22:55 net-next 416b27439df9 0a2584dd .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-net-kasan-gce 2022/01/04 15:51 net-next 416b27439df9 0a2584dd .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-net-kasan-gce 2022/01/02 13:14 net-next c95e078069bf e1768e9c .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-net-kasan-gce 2022/01/02 11:50 net-next e63a02348958 e1768e9c .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-net-kasan-gce 2022/01/02 06:24 net-next e63a02348958 e1768e9c .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit
ci-upstream-net-kasan-gce 2021/11/05 02:48 net-next cc0356d6a02e 4c1be0be .config log report info WARNING: suspicious RCU usage in __dev_queue_xmit