syzbot


KASAN: use-after-free Read in kvm_write_guest_offset_cached
Status: upstream: reported syz repro on 2018/11/27 04:50
Reported-by: syzbot+ff40b9bc4835ea83211c@syzkaller.appspotmail.com
First crash: 557d, last: 549d

Cause bisection: failed (bisect log)

Fix bisection: fixed by (bisect log):

commit 98af8452945c55652de68536afdde3b520fec429
Author: Josh Poimboeuf <jpoimboe@redhat.com>
Date: Fri Apr 12 20:39:28 2019 +0000

  cpu/speculation: Add 'mitigations=' cmdline option


Sample crash report:

Crashes (4):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-kasan-gce-root 2018/11/27 08:32 upstream 6f8b52ba ac912200 .config log report syz kvm@vger.kernel.org, linux-kernel@vger.kernel.org, pbonzini@redhat.com, rkrcmar@redhat.com
ci-upstream-linux-next-kasan-gce-root 2018/11/27 04:11 linux-next 442b8cea ac912200 .config log report syz kvm@vger.kernel.org, linux-kernel@vger.kernel.org, pbonzini@redhat.com, rkrcmar@redhat.com
ci-upstream-kasan-gce 2018/12/04 09:46 upstream 0072a0c1 03f94a45 .config log report kvm@vger.kernel.org, linux-kernel@vger.kernel.org, pbonzini@redhat.com, rkrcmar@redhat.com
ci-upstream-linux-next-kasan-gce-root 2018/11/27 02:10 linux-next 442b8cea ac912200 .config log report kvm@vger.kernel.org, linux-kernel@vger.kernel.org, pbonzini@redhat.com, rkrcmar@redhat.com