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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 19 May 2023 11:42:52 -0400
From:   Alan Stern <stern@...land.harvard.edu>
To:     Helge Deller <deller@....de>
Cc:     linux-kernel@...r.kernel.org, linux-fbdev@...r.kernel.org,
        dri-devel@...ts.freedesktop.org,
        syzbot <syzbot+0e22d63dcebb802b9bc8@...kaller.appspotmail.com>,
        bernie@...gable.com, linux-usb@...r.kernel.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [fbdev?] [usb?] WARNING in
 dlfb_submit_urb/usb_submit_urb (2)

On Fri, May 19, 2023 at 12:38:15PM +0200, Helge Deller wrote:
> Patch looks good and survived the test.
> 
> Will you send a proper patch to the fbdev mailing list, so that I can
> include it?

Will do.

While you're working on this driver, here's a suggestion for another 
improvement you can make.  The temporary buffer allocations and calls to 
usb_control_msg() in dlfb_get_edid() and dlfb_select_std_channel() can 
be replaced with calls to usb_control_msg_recv() and 
usb_control_msg_send() respectively.

Alan Stern