From: Alan Stern <stern@rowland.harvard.edu>
To: syzbot <syzbot+9b57a46bf1801ce2a2ca@syzkaller.appspotmail.com>
Cc: benjamin.tissoires@redhat.com, jikos@kernel.org,
linux-input@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-usb@vger.kernel.org, mkubecek@suse.cz,
syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] WARNING in hid_submit_ctrl/usb_submit_urb
Date: Thu, 19 Aug 2021 11:26:26 -0400 [thread overview]
Message-ID: <20210819152626.GD228422@rowland.harvard.edu> (raw)
In-Reply-To: <000000000000f7ab1005c9db0f8e@google.com>
On Wed, Aug 18, 2021 at 01:13:06PM -0700, syzbot wrote:
> Hello,
>
> syzbot has tested the proposed patch but the reproducer is still triggering an issue:
> WARNING in hid_submit_ctrl/usb_submit_urb
>
> ------------[ cut here ]------------
> usb 1-1: BOGUS control dir, pipe 80000280 doesn't match bRequestType a1
> WARNING: CPU: 1 PID: 10180 at drivers/usb/core/urb.c:410 usb_submit_urb+0x149d/0x18a0 drivers/usb/core/urb.c:410
Looks like I was wrong. Let's see what's really happening.
Alan Stern
#syz test: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 794c7931a242
--- usb-devel.orig/drivers/hid/usbhid/hid-core.c
+++ usb-devel/drivers/hid/usbhid/hid-core.c
@@ -397,6 +397,8 @@ static int hid_submit_ctrl(struct hid_de
} else
padlen = 0;
usbhid->urbctrl->transfer_buffer_length = padlen;
+ hid_err(hid, "submit_ctrl: maxpacket %d len %d padlen %d\n",
+ maxpacket, len, padlen);
}
usbhid->urbctrl->dev = hid_to_usb_dev(hid);
next prev parent reply other threads:[~2021-08-19 15:26 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-18 15:46 [syzbot] WARNING in hid_submit_ctrl/usb_submit_urb syzbot
2021-08-18 9:14 ` syzbot
2021-08-18 18:49 ` Alan Stern
2021-08-18 20:13 ` syzbot
2021-08-19 15:26 ` Alan Stern [this message]
2021-08-19 17:35 ` syzbot
2021-08-19 19:53 ` Alan Stern
2021-08-20 0:40 ` syzbot
2021-08-20 14:06 ` Alan Stern
2021-08-24 11:53 ` Jiri Kosina
2021-08-24 12:34 ` Benjamin Tissoires
2021-08-31 9:51 ` Benjamin Tissoires
2021-08-31 13:34 ` Alan Stern
2021-08-31 19:53 ` Jiri Kosina
2021-09-01 15:38 ` Alan Stern
2021-09-01 15:51 ` Michal Kubecek
2021-08-24 11:50 ` Michal Kubecek
2021-08-30 19:22 ` Oleksandr Natalenko
2021-08-18 19:01 ` Alan Stern
2021-08-18 19:39 ` syzbot
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