linux-kernel - Re: WARNING in usb_submit

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Message-ID: <CAAeHK+wJVFv-8AHFG3V3tOdkzw9D63Ztot_tb=oR-QVNXWPoXw@mail.gmail.com>
Date:   Mon, 15 Oct 2018 19:40:49 +0200
From:   Andrey Konovalov <andreyknvl@...gle.com>
To:     Alan Stern <stern@...land.harvard.edu>
Cc:     syzbot <syzbot+24a30223a4b609bb802e@...kaller.appspotmail.com>,
        Thinh.Nguyen@...opsys.com,
        Felipe Balbi <felipe.balbi@...ux.intel.com>,
        "Gustavo A . R . Silva" <garsilva@...eddedor.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        LKML <linux-kernel@...r.kernel.org>,
        USB list <linux-usb@...r.kernel.org>,
        syzkaller-bugs <syzkaller-bugs@...glegroups.com>,
        Oliver Neukum <oneukum@...e.com>
Subject: Re: WARNING in usb_submit_urb (3)

On Mon, Oct 15, 2018 at 7:12 PM, Alan Stern <stern@...land.harvard.edu> wrote:
> Ah, I see the problem.  In fact it is the same issue, but the commit
> mentioned above contains an error (is_in gets tested too soon).  The
> fix is below; can you check it?

You can ask syzbot to do this:

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master

View attachment "usb_submit_urb.patch" of type "text/x-patch" (795 bytes)