Re: BUG: unable to handle kernel NULL pointer dereference in hci_uart_set_flow_control

From: syzbot
Date: Thu Mar 21 2019 - 14:22:03 EST


syzbot has bisected this bug to:

commit 162f812f23bab583f5d514ca0e4df67797ac9cdf
Author: Loic Poulain <loic.poulain@xxxxxxxxx>
Date: Mon Sep 19 14:29:27 2016 +0000

Bluetooth: hci_uart: Add Marvell support

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=112f0a3b200000
start commit: 162f812f Bluetooth: hci_uart: Add Marvell support
git tree: upstream
final crash: https://syzkaller.appspot.com/x/report.txt?x=132f0a3b200000
console output: https://syzkaller.appspot.com/x/log.txt?x=152f0a3b200000
kernel config: https://syzkaller.appspot.com/x/.config?x=9a31fb246de2a622
dashboard link: https://syzkaller.appspot.com/bug?extid=79337b501d6aa974d0f6
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15397fd7200000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=151e9e6d200000

Reported-by: syzbot+79337b501d6aa974d0f6@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 162f812f23ba ("Bluetooth: hci_uart: Add Marvell support")

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