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

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Date:   Wed, 18 Mar 2020 20:48:03 -0700
From:   syzbot <syzbot+a66a7c2e996797bb4acb@...kaller.appspotmail.com>
To:     davem@...emloft.net, grundler@...omium.org, hayeswang@...ltek.com,
        johan.hedberg@...il.com, linux-bluetooth@...r.kernel.org,
        linux-kernel@...r.kernel.org, marcel@...tmann.org,
        pmalani@...omium.org, syzkaller-bugs@...glegroups.com
Subject: Re: KASAN: use-after-free Read in skb_release_data (2)

syzbot has bisected this bug to:

commit 5f71c84038d39def573744a145c573758f52a949
Author: Prashant Malani <pmalani@...omium.org>
Date:   Tue Oct 1 08:35:57 2019 +0000

    r8152: Factor out OOB link list waits

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=15f5b973e00000
start commit:   63623fd4 Merge tag 'for-linus' of git://git.kernel.org/pub..
git tree:       upstream
final crash:    https://syzkaller.appspot.com/x/report.txt?x=17f5b973e00000
console output: https://syzkaller.appspot.com/x/log.txt?x=13f5b973e00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=5d2e033af114153f
dashboard link: https://syzkaller.appspot.com/bug?extid=a66a7c2e996797bb4acb
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=13c25a81e00000

Reported-by: syzbot+a66a7c2e996797bb4acb@...kaller.appspotmail.com
Fixes: 5f71c84038d3 ("r8152: Factor out OOB link list waits")

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