linux-kernel - Re: general protection fault in tls_trim_both

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Date:   Sat, 27 Jul 2019 20:46:00 -0700
From:   syzbot <syzbot+0e0fedcad708d12d3032@...kaller.appspotmail.com>
To:     ast@...nel.org, aviadye@...lanox.com, borisp@...lanox.com,
        bpf@...r.kernel.org, corbet@....net, daniel@...earbox.net,
        davejwatson@...com, davem@...emloft.net,
        jakub.kicinski@...ronome.com, john.fastabend@...il.com,
        kafai@...com, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        songliubraving@...com, syzkaller-bugs@...glegroups.com, yhs@...com
Subject: Re: general protection fault in tls_trim_both_msgs

syzbot has bisected this bug to:

commit 32857cf57f920cdc03b5095f08febec94cf9c36b
Author: John Fastabend <john.fastabend@...il.com>
Date:   Fri Jul 19 17:29:18 2019 +0000

     net/tls: fix transition through disconnect with close

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=155064d8600000
start commit:   fde50b96 Add linux-next specific files for 20190726
git tree:       linux-next
final crash:    https://syzkaller.appspot.com/x/report.txt?x=175064d8600000
console output: https://syzkaller.appspot.com/x/log.txt?x=135064d8600000
kernel config:  https://syzkaller.appspot.com/x/.config?x=4b58274564b354c1
dashboard link: https://syzkaller.appspot.com/bug?extid=0e0fedcad708d12d3032
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14779d64600000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1587c842600000

Reported-by: syzbot+0e0fedcad708d12d3032@...kaller.appspotmail.com
Fixes: 32857cf57f92 ("net/tls: fix transition through disconnect with  
close")

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