syzbot


WARNING in geneve_exit_batch_net (2)
Status: fixed on 2020/05/10 10:42
Reported-by: syzbot+68a8ed58e3d17c700de5@syzkaller.appspotmail.com
Fix commit: 0fda7600c2e1 geneve: move debug check after netdev unregister
First crash: 652d, last: 624d

Cause bisection: introduced by (bisect log) :
commit 4e645b47c4f000a503b9c90163ad905786b9bc1d
Author: Florian Westphal <fw@strlen.de>
Date: Thu Nov 30 23:21:02 2017 +0000

  netfilter: core: make nf_unregister_net_hooks simple wrapper again

Crash: WARNING in geneve_exit_batch_net (log)
Repro: C syz .config
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in geneve_exit_batch_net 15 659d 684d 16/22 fixed on 2020/02/18 14:31
linux-4.19 WARNING in geneve_exit_batch_net C done 2 619d 663d 1/1 fixed on 2020/04/29 09:12
Patch testing requests:
Created Duration User Patch Repo Result
2020/03/13 01:54 19m fw@strlen.de git://git.breakpoint.cc/fw/net.git geneve_fp OK

Sample crash report:

Crashes (9):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-selinux-root 2020/03/03 20:37 upstream 63623fd44972 c88c7b75 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/02/28 22:32 upstream f8788d86ab28 59b57593 .config log report syz C
ci-upstream-net-kasan-gce 2020/02/27 01:26 net-next c3e042f54107 59b57593 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/03/21 03:52 upstream 6c90b86a745a 2c31c529 .config log report
ci-upstream-net-this-kasan-gce 2020/03/08 14:42 net aeaa925bff84 2e9971bb .config log report
ci-upstream-net-kasan-gce 2020/03/24 02:26 net-next 6919a8264a32 84f999d6 .config log report
ci-upstream-net-kasan-gce 2020/03/01 03:07 net-next 3b3e808cd883 c88c7b75 .config log report
ci-upstream-net-kasan-gce 2020/02/26 22:53 net-next c3e042f54107 59b57593 .config log report
ci-upstream-net-kasan-gce 2020/02/25 08:56 net-next c3e042f54107 59b57593 .config log report