linux-kernel - Re: [syzbot] BUG: unable to handle kernel paging request in kvm_arch_hardware

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Message-ID: <Yvuj4ugWYpthUwhj@google.com>
Date:   Tue, 16 Aug 2022 14:04:18 +0000
From:   Sean Christopherson <seanjc@...gle.com>
To:     syzbot <syzbot+4f6eb69074ff62a1a33b@...kaller.appspotmail.com>
Cc:     bp@...en8.de, dave.hansen@...ux.intel.com, hpa@...or.com,
        jarkko@...nel.org, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-sgx@...r.kernel.org,
        mingo@...hat.com, pbonzini@...hat.com,
        syzkaller-bugs@...glegroups.com, tglx@...utronix.de, x86@...nel.org
Subject: Re: [syzbot] BUG: unable to handle kernel paging request in
 kvm_arch_hardware_enable

On Tue, Aug 16, 2022, syzbot wrote:
> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    7ebfc85e2cd7 Merge tag 'net-6.0-rc1' of git://git.kernel.o..
> git tree:       upstream
> console+strace: https://syzkaller.appspot.com/x/log.txt?x=13d10985080000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=20bc0b329895d963
> dashboard link: https://syzkaller.appspot.com/bug?extid=4f6eb69074ff62a1a33b
> compiler:       Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1538e0b5080000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=112756f3080000
> 
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+4f6eb69074ff62a1a33b@...kaller.appspotmail.com

Fix posted[*], apparently the sybot id changes when bugs get forwarded upstream.

[*] https://lore.kernel.org/all/20220816053937.2477106-2-seanjc@google.com