syzbot


WARNING in vcpu_enter_guest
Status: fixed on 2020/05/10 10:41
Reported-by: syzbot+00be5da1d75f1cc95f6b@syzkaller.appspotmail.com
Fix commit: d33294541889 KVM: x86: remove bogus user-triggerable WARN_ON
First crash: 854d, last: 627d

Cause bisection: introduced by (bisect log) :
commit 9446e6fce0ab9dfd44b96f630b4e3a0a0ab879fd
Author: Paolo Bonzini <pbonzini@redhat.com>
Date: Wed Feb 12 12:27:10 2020 +0000

  KVM: x86: fix WARN_ON check of an unsigned less than zero

Crash: WARNING in kvm_arch_vcpu_ioctl_run (log)
Repro: syz .config

Sample crash report:

Crashes (19):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2020/03/19 10:34 upstream 5076190daded 2c31c529 .config log report syz
ci-upstream-kasan-gce-selinux-root 2020/03/21 21:43 upstream 5ad0ec0b8652 4288d95e .config log report
ci-upstream-kasan-gce-root 2020/03/21 21:37 upstream 5ad0ec0b8652 4288d95e .config log report
ci-upstream-kasan-gce 2020/03/19 10:06 upstream 5076190daded 2c31c529 .config log report
ci-upstream-kasan-gce 2020/03/03 00:08 upstream 63623fd44972 c88c7b75 .config log report
ci-upstream-kasan-gce-smack-root 2020/02/25 12:48 upstream f8788d86ab28 59b57593 .config log report
ci-upstream-kasan-gce 2020/01/02 16:43 upstream 738d2902773e 25a0186e .config log report
ci-upstream-kasan-gce 2019/09/17 22:44 upstream ad062195731b 13dcda9b .config log report
ci-upstream-kasan-gce-smack-root 2019/09/16 18:44 upstream 4d856f72c10e cb936299 .config log report
ci-upstream-kasan-gce 2019/09/09 06:02 upstream f74c2bb98776 a60cb4cd .config log report
ci-upstream-kasan-gce 2019/09/06 19:00 upstream 044597100037 a60cb4cd .config log report
ci-upstream-kasan-gce 2019/08/31 14:42 upstream 6525771f58cb fd37b39e .config log report
ci-upstream-kasan-gce 2019/08/28 16:22 upstream 6525771f58cb fd37b39e .config log report
ci-upstream-kasan-gce 2019/08/21 18:43 upstream 15d90b242290 4ea67ff8 .config log report
ci-upstream-kasan-gce 2019/08/21 07:45 upstream 15d90b242290 4ea67ff8 .config log report
ci-upstream-kasan-gce-386 2019/11/27 16:03 upstream 89d57dddd7d3 0d63f89c .config log report
ci-upstream-kasan-gce-386 2019/09/10 12:51 upstream 3120b9a6a3f7 a60cb4cd .config log report
ci-upstream-linux-next-kasan-gce-root 2020/03/21 21:42 linux-next 770fbb32d34e 4288d95e .config log report
ci-upstream-linux-next-kasan-gce-root 2019/08/07 10:28 linux-next 958eb4327c17 cdde7486 .config log report