linux-kernel - Re: memory leak in dma_buf

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Message-ID: <00000000000005dbbc058e8c608d@google.com>
Date:   Thu, 25 Jul 2019 19:34:01 -0700
From:   syzbot <syzbot+b2098bc44728a4efb3e9@...kaller.appspotmail.com>
To:     bsingharora@...il.com, coreteam@...filter.org, davem@...emloft.net,
        dri-devel@...ts.freedesktop.org, duwe@...e.de, dvyukov@...gle.com,
        kaber@...sh.net, kadlec@...ckhole.kfki.hu,
        linaro-mm-sig@...ts.linaro.org, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org, mingo@...hat.com, mpe@...erman.id.au,
        netdev@...r.kernel.org, netfilter-devel@...r.kernel.org,
        pablo@...filter.org, rostedt@...dmis.org, sumit.semwal@...aro.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: memory leak in dma_buf_ioctl

syzbot has bisected this bug to:

commit 04cf31a759ef575f750a63777cee95500e410994
Author: Michael Ellerman <mpe@...erman.id.au>
Date:   Thu Mar 24 11:04:01 2016 +0000

     ftrace: Make ftrace_location_range() global

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=154293f4600000
start commit:   abdfd52a Merge tag 'armsoc-defconfig' of git://git.kernel...
git tree:       upstream
final crash:    https://syzkaller.appspot.com/x/report.txt?x=174293f4600000
console output: https://syzkaller.appspot.com/x/log.txt?x=134293f4600000
kernel config:  https://syzkaller.appspot.com/x/.config?x=d31de3d88059b7fa
dashboard link: https://syzkaller.appspot.com/bug?extid=b2098bc44728a4efb3e9
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12526e58600000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=161784f0600000

Reported-by: syzbot+b2098bc44728a4efb3e9@...kaller.appspotmail.com
Fixes: 04cf31a759ef ("ftrace: Make ftrace_location_range() global")

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