From: Alan Stern <stern@rowland.harvard.edu>
To: andreyknvl@google.com,
syzbot <syzbot+513e4d0985298538bf9b@syzkaller.appspotmail.com>
Cc: glider@google.com, <gregkh@linuxfoundation.org>,
<gustavo@embeddedor.com>,
Kernel development list <linux-kernel@vger.kernel.org>,
USB list <linux-usb@vger.kernel.org>,
<syzkaller-bugs@googlegroups.com>
Subject: Re: KMSAN: kernel-usb-infoleak in pcan_usb_pro_send_req
Date: Tue, 30 Jul 2019 10:17:19 -0400 (EDT) [thread overview]
Message-ID: <Pine.LNX.4.44L0.1907301011100.1507-100000@iolanthe.rowland.org> (raw)
In-Reply-To: <00000000000014c877058ee2c4a6@google.com>
On Tue, 30 Jul 2019, syzbot wrote:
> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit: 41550654 [UPSTREAM] KVM: x86: degrade WARN to pr_warn_rate..
> git tree: kmsan
> console output: https://syzkaller.appspot.com/x/log.txt?x=13e95183a00000
> kernel config: https://syzkaller.appspot.com/x/.config?x=40511ad0c5945201
> dashboard link: https://syzkaller.appspot.com/bug?extid=513e4d0985298538bf9b
> compiler: clang version 9.0.0 (/home/glider/llvm/clang
> 80fee25776c2fb61e74c1ecb1a523375c2500b69)
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17eafa1ba00000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17b87983a00000
>
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+513e4d0985298538bf9b@syzkaller.appspotmail.com
>
> usb 1-1: config 0 has no interface number 0
> usb 1-1: New USB device found, idVendor=0c72, idProduct=0014,
> bcdDevice=8b.53
> usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
> usb 1-1: config 0 descriptor??
> peak_usb 1-1:0.146: PEAK-System PCAN-USB X6 v0 fw v0.0.0 (2 channels)
> ==================================================================
> BUG: KMSAN: kernel-usb-infoleak in usb_submit_urb+0x7ef/0x1f50
> drivers/usb/core/urb.c:405
What does "kernel-usb-infoleak" mean?
Alan Stern
next prev parent reply other threads:[~2019-07-30 14:17 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-30 9:38 KMSAN: kernel-usb-infoleak in pcan_usb_pro_send_req syzbot
2019-07-30 14:17 ` Alan Stern [this message]
2019-07-30 14:20 ` Andrey Konovalov
2019-07-30 14:22 ` Andrey Konovalov
2019-07-30 14:28 ` Alexander Potapenko
2019-08-06 12:45 ` Oliver Neukum
2019-08-06 12:45 ` syzbot
2019-08-06 12:49 ` Andrey Konovalov
2019-08-06 13:59 ` Alan Stern
2019-08-06 14:00 ` Andrey Konovalov
2019-08-06 13:05 ` Oliver Neukum
2019-08-06 14:44 ` syzbot
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