Re: divide error in cdc_ncm_update_rxtx_max

2019-09-17 Thread Bjørn Mork
syzbot writes: > syzbot has tested the proposed patch but the reproducer still > triggered crash: > divide error in usbnet_update_max_qlen > > cdc_ncm 5-1:1.0: setting tx_max = 16384 > divide error: [#1] SMP KASAN > CPU: 1 PID: 1737 Comm: kworker/1:2 Not tainted 5.3.0-rc7+ #0 > Hardware name

Re: divide error in cdc_ncm_update_rxtx_max

2019-09-17 Thread syzbot
Hello, syzbot has tested the proposed patch but the reproducer still triggered crash: divide error in usbnet_update_max_qlen cdc_ncm 5-1:1.0: setting tx_max = 16384 divide error: [#1] SMP KASAN CPU: 1 PID: 1737 Comm: kworker/1:2 Not tainted 5.3.0-rc7+ #0 Hardware name: Google Google Comp

Re: divide error in cdc_ncm_update_rxtx_max

2019-09-17 Thread Bjørn Mork
#syz test: https://github.com/google/kasan.git f0df5c1b >From dd2eb64899d5e695e5e05c674ecbbc3fce01b4b5 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Tue, 17 Sep 2019 15:46:03 +0200 Subject: [RFC] cdc_ncm: fix divide error when USB packet size is 0 MIME-Version: 1.0 Content-Ty

divide error in cdc_ncm_update_rxtx_max

2019-09-16 Thread syzbot
Hello, syzbot found the following crash on: HEAD commit:f0df5c1b usb-fuzzer: main usb gadget fuzzer driver git tree: https://github.com/google/kasan.git usb-fuzzer console output: https://syzkaller.appspot.com/x/log.txt?x=14cd145960 kernel config: https://syzkaller.appspot.com/x/.