linux-kernel - Re: [syzbot] [usb?] WARNING in usbtmc_ioctl/usb_submit

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Date:   Tue, 02 May 2023 15:35:21 -0700
From:   syzbot <syzbot+ce77725b89b7bd52425c@...kaller.appspotmail.com>
To:     gregkh@...uxfoundation.org, johan@...nel.org,
        linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        stern@...land.harvard.edu, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [usb?] WARNING in usbtmc_ioctl/usb_submit_urb (2)

syzbot has bisected this issue to:

commit 5cc59c418fde9d02859996707b9d5dfd2941c50b
Author: Alan Stern <stern@...land.harvard.edu>
Date:   Sat May 22 02:16:23 2021 +0000

    USB: core: WARN if pipe direction != setup packet direction

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=140bee54280000
start commit:   58390c8ce1bd Merge tag 'iommu-updates-v6.4' of git://git.k..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=160bee54280000
console output: https://syzkaller.appspot.com/x/log.txt?x=120bee54280000
kernel config:  https://syzkaller.appspot.com/x/.config?x=d56ffc213bf6bf4a
dashboard link: https://syzkaller.appspot.com/bug?extid=ce77725b89b7bd52425c
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=15027ef7c80000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=16d7550c280000

Reported-by: syzbot+ce77725b89b7bd52425c@...kaller.appspotmail.com
Fixes: 5cc59c418fde ("USB: core: WARN if pipe direction != setup packet direction")

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