linux-kernel - Re: general protection fault in _

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Date:   Thu, 21 Nov 2019 23:19:00 -0800
From:   syzbot <syzbot+7e2ab84953e4084a638d@...kaller.appspotmail.com>
To:     casey@...aufler-ca.com, frederic@...nel.org,
        gregkh@...uxfoundation.org, hpa@...or.com, jmattson@...gle.com,
        jmorris@...ei.org, karahmed@...zon.de,
        kstewart@...uxfoundation.org, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        linux-security-module@...r.kernel.org, mingo@...nel.org,
        mingo@...hat.com, pasha.tatashin@...cle.com, pbonzini@...hat.com,
        pombredanne@...b.com, rkrcmar@...hat.com, serge@...lyn.com,
        syzkaller-bugs@...glegroups.com, tglx@...utronix.de, x86@...nel.org
Subject: Re: general protection fault in __schedule (2)

syzbot has bisected this bug to:

commit 8fcc4b5923af5de58b80b53a069453b135693304
Author: Jim Mattson <jmattson@...gle.com>
Date:   Tue Jul 10 09:27:20 2018 +0000

     kvm: nVMX: Introduce KVM_CAP_NESTED_STATE

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=124cdbace00000
start commit:   234b69e3 ocfs2: fix ocfs2 read block panic
git tree:       upstream
final crash:    https://syzkaller.appspot.com/x/report.txt?x=114cdbace00000
console output: https://syzkaller.appspot.com/x/log.txt?x=164cdbace00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=5fa12be50bca08d8
dashboard link: https://syzkaller.appspot.com/bug?extid=7e2ab84953e4084a638d
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=150f0a4e400000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=17f67111400000

Reported-by: syzbot+7e2ab84953e4084a638d@...kaller.appspotmail.com
Fixes: 8fcc4b5923af ("kvm: nVMX: Introduce KVM_CAP_NESTED_STATE")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection