From mboxrd@z Thu Jan 1 00:00:00 1970 From: syzbot Subject: Re: KASAN: use-after-free Read in nr_rx_frame (2) Date: Wed, 31 Jul 2019 14:32:00 -0700 Message-ID: <000000000000fdd90c058f00daca@google.com> References: <000000000000e42667058e554371@google.com> Mime-Version: 1.0 Return-path: In-Reply-To: <000000000000e42667058e554371@google.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii"; format="flowed"; delsp="yes" Content-Transfer-Encoding: 7bit To: davem@davemloft.net, dvyukov@google.com, linux-hams@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, ralf@linux-mips.org, syzkaller-bugs@googlegroups.com, xiyou.wangcong@gmail.com syzbot has bisected this bug to: commit c8c8218ec5af5d2598381883acbefbf604e56b5e Author: Cong Wang Date: Thu Jun 27 21:30:58 2019 +0000 netrom: fix a memory leak in nr_rx_frame() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=122ddaec600000 start commit: 629f8205 Merge tag 'for-linus-20190730' of git://git.kerne.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=112ddaec600000 console output: https://syzkaller.appspot.com/x/log.txt?x=162ddaec600000 kernel config: https://syzkaller.appspot.com/x/.config?x=e397351d2615e10 dashboard link: https://syzkaller.appspot.com/bug?extid=701728447042217b67c1 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14a6e008600000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11937d92600000 Reported-by: syzbot+701728447042217b67c1@syzkaller.appspotmail.com Fixes: c8c8218ec5af ("netrom: fix a memory leak in nr_rx_frame()") For information about bisection process see: https://goo.gl/tpsmEJ#bisection