syzbot


WARNING: refcount bug in ipip6_tunnel_uninit
Status: internal: reported C repro on 2021/03/27 07:04
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: 6289a98f0817 sit: proper dev_{hold|put} in ndo_[un]init methods
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-qemu2-riscv64 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-kmsan-gce ci-upstream-kmsan-gce-386 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-arm32]
First crash: 119d, last: 113d

Cause bisection: introduced by (bisect log) :
commit 997acaf6b4b59c6a9c259740312a69ea549cc684
Author: Mark Rutland <mark.rutland@arm.com>
Date: Mon Jan 11 15:37:07 2021 +0000

  lockdep: report broken irq restoration

Crash: WARNING in kvm_wait (log)
Repro: C syz .config

Sample crash report:

Crashes (199):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-net-kasan-gce 2021/03/31 03:50 net-next 37f368d8d09d 6a81331a .config log report syz C WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/27 15:00 net-next a1281601f88e a8529b82 .config log report syz C WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/27 12:07 net-next a1281601f88e a8529b82 .config log report syz C WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/27 09:56 net-next a1281601f88e a8529b82 .config log report syz C WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/27 09:27 net-next a1281601f88e a8529b82 .config log report syz C WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-linux-next-kasan-gce-root 2021/03/27 14:35 linux-next 931294922e65 a8529b82 .config log report syz C WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/31 21:36 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/31 20:30 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/31 19:29 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/31 16:46 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/31 15:19 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/31 13:58 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/31 11:39 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/31 10:27 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/31 09:14 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/31 08:09 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/31 07:46 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/31 06:23 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/31 03:33 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/31 00:20 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/30 21:43 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/30 20:08 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/30 17:54 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/30 16:14 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/30 14:45 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/30 13:37 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/30 11:33 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/30 08:19 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/30 06:53 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/30 05:36 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/30 04:59 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/30 03:48 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/30 02:39 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/29 23:55 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/29 21:35 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/29 20:27 net-next 37f368d8d09d 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/29 17:49 net-next 72642f4127c3 a8529b82 .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/29 15:28 net-next 72642f4127c3 a8529b82 .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/29 13:40 net-next 72642f4127c3 a8529b82 .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/29 11:05 net-next 72642f4127c3 a8529b82 .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/29 09:27 net-next 72642f4127c3 a8529b82 .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/29 05:17 net-next a1281601f88e a8529b82 .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/29 04:00 net-next a1281601f88e a8529b82 .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/29 02:53 net-next a1281601f88e a8529b82 .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/29 01:59 net-next a1281601f88e a8529b82 .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/28 20:39 net-next a1281601f88e a8529b82 .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/28 18:52 net-next a1281601f88e a8529b82 .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/28 17:17 net-next a1281601f88e a8529b82 .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/28 16:07 net-next a1281601f88e a8529b82 .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/28 13:52 net-next a1281601f88e a8529b82 .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-net-kasan-gce 2021/03/27 07:03 net-next a1281601f88e a8529b82 .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-linux-next-kasan-gce-root 2021/04/01 12:25 linux-next 931294922e65 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-linux-next-kasan-gce-root 2021/03/31 18:19 linux-next 931294922e65 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-linux-next-kasan-gce-root 2021/03/29 22:50 linux-next 931294922e65 6a81331a .config log report info WARNING: refcount bug in ipip6_tunnel_uninit
ci-upstream-linux-next-kasan-gce-root 2021/03/29 12:07 linux-next 931294922e65 a8529b82 .config log report info WARNING: refcount bug in ipip6_tunnel_uninit