BUG: spinlock bad magic in rhashtable_walk_enter
Status: upstream: reported C repro on 2019/05/18 07:28
First crash: 33d, last: 28d

Bisection: introduced by (bisect log):

commit 7e27e8d6130c5e88fac9ddec4249f7f2337fe7f8
Author: Junwei Hu <>
Date: Thu May 16 02:51:15 2019 +0000

  tipc: switch order of device registration to fix a crash

Tree: net
Crash: KASAN: use-after-free Read in rhashtable_walk_enter (log)
Repro: C syz .config

Sample crash report:

All crashes (8):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-kasan-gce 2019/05/21 23:29 upstream 5bdd9ad8 13427bd9 .config log report syz C,,,,,
ci-upstream-kasan-gce 2019/05/21 20:54 upstream 5bdd9ad8 13427bd9 .config log report syz C,,,,,
ci-upstream-kasan-gce-smack-root 2019/05/21 02:23 upstream f49aa1de 8285069f .config log report syz C,,,,,
ci-upstream-net-this-kasan-gce 2019/05/17 02:26 net 510e2ced 7fb690f3 .config log report syz C,,,,,
ci-upstream-net-kasan-gce 2019/05/20 22:55 net-next f49aa1de 8285069f .config log report syz C,,,,,
ci-upstream-kasan-gce-386 2019/05/21 18:04 upstream 5bdd9ad8 13427bd9 .config log report,,,,,
ci-upstream-bpf-next-kasan-gce 2019/05/22 04:12 bpf-next f49aa1de 13427bd9 .config log report,,,,,
ci-upstream-linux-next-kasan-gce-root 2019/05/17 14:21 linux-next b1d6682e 95dfd515 .config log report,,,,,