linux-kernel - Re: general protection fault in vb2

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Message-ID: <000000000000d5dacd0596c1d41e@google.com>
Date:   Thu, 07 Nov 2019 05:42:07 -0800
From:   syzbot <syzbot+52e5bf0ebfa66092937a@...kaller.appspotmail.com>
To:     hansverk@...co.com, hverkuil@...all.nl, kyungmin.park@...sung.com,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
        m.szyprowski@...sung.com, mchehab+samsung@...nel.org,
        mchehab@...nel.org, pawel@...iak.com,
        syzkaller-bugs@...glegroups.com, tfiga@...omium.org
Subject: Re: general protection fault in vb2_mmap

syzbot suspects this bug was fixed by commit:

commit cd26d1c4d1bc947b56ae404998ae2276df7b39b7
Author: Hans Verkuil <hverkuil@...all.nl>
Date:   Tue Nov 13 14:06:46 2018 +0000

     media: vb2: vb2_mmap: move lock up

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=101a70e2600000
start commit:   e12e00e3 Merge tag 'kbuild-fixes-v4.20' of git://git.kerne..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=8f215f21f041a0d7
dashboard link: https://syzkaller.appspot.com/bug?extid=52e5bf0ebfa66092937a
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14c61b0b400000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=109d545d400000

If the result looks correct, please mark the bug fixed by replying with:

#syz fix: media: vb2: vb2_mmap: move lock up

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