linux-kernel - Re: KASAN: use-after-free Read in path

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Message-ID: <000000000000295e0d0584e08021@google.com>
Date:   Sun, 24 Mar 2019 17:44:01 -0700
From:   syzbot <syzbot+7a8ba368b47fdefca61e@...kaller.appspotmail.com>
To:     dledford@...hat.com, hch@....de, leonro@...lanox.com,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        sagi@...mberg.me, syzkaller-bugs@...glegroups.com,
        viro@...iv.linux.org.uk
Subject: Re: KASAN: use-after-free Read in path_lookupat

syzbot has bisected this bug to:

commit a435393acafbf0ecff4deb3e3cb554b34f0d0664
Author: Sagi Grimberg <sagi@...mberg.me>
Date:   Thu Jul 13 08:09:40 2017 +0000

     mlx5: move affinity hints assignments to generic code

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=12df1ba3200000
start commit:   442b8cea Add linux-next specific files for 20181109
git tree:       linux-next
final crash:    https://syzkaller.appspot.com/x/report.txt?x=11df1ba3200000
console output: https://syzkaller.appspot.com/x/log.txt?x=16df1ba3200000
kernel config:  https://syzkaller.appspot.com/x/.config?x=2f72bdb11df9fbe8
dashboard link: https://syzkaller.appspot.com/bug?extid=7a8ba368b47fdefca61e
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=132815f5400000

Reported-by: syzbot+7a8ba368b47fdefca61e@...kaller.appspotmail.com
Fixes: a435393acafb ("mlx5: move affinity hints assignments to generic  
code")

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