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Message-ID: <CAAeHK+wpZ3t-1WFr9Tyt51HFP+m=umFz_=EKcNAGif1Ekyf=gQ@mail.gmail.com>
Date:   Thu, 2 Apr 2020 17:57:00 +0200
From:   Andrey Konovalov <andreyknvl@...gle.com>
To:     syzbot <syzbot+db339689b2101f6f6071@...kaller.appspotmail.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        ingrassia@...genesys.com, LKML <linux-kernel@...r.kernel.org>,
        USB list <linux-usb@...r.kernel.org>,
        Alan Stern <stern@...land.harvard.edu>,
        syzkaller-bugs <syzkaller-bugs@...glegroups.com>
Subject: Re: WARNING in usbhid_raw_request/usb_submit_urb (3)

On Thu, Apr 2, 2020 at 5:53 PM syzbot
<syzbot+db339689b2101f6f6071@...kaller.appspotmail.com> wrote:
>
> Hello,
>
> syzbot has tested the proposed patch and the reproducer did not trigger crash:
>
> Reported-and-tested-by: syzbot+db339689b2101f6f6071@...kaller.appspotmail.com
>
> Tested on:
>
> commit:         0fa84af8 Merge tag 'usb-serial-5.7-rc1' of https://git.ker..
> git tree:       https://github.com/google/kasan.git
> kernel config:  https://syzkaller.appspot.com/x/.config?x=6b9c154b0c23aecf
> dashboard link: https://syzkaller.appspot.com/bug?extid=db339689b2101f6f6071
> compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
> patch:          https://syzkaller.appspot.com/x/patch.diff?x=143c2c63e00000
>
> Note: testing is done by a robot and is best-effort only.

Let's try this once again, maybe the reproducer is extremely unreliable.

#syz test: https://github.com/google/kasan.git 0fa84af8

View attachment "usb.patch" of type "text/x-patch" (789 bytes)

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