linux-kernel - Re: [BUG] USB input death then system freeze

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] [day] [month] [year] [list]

Message-ID: <Pine.LNX.4.64.0705251151000.8531@twin.jikos.cz>
Date:	Fri, 25 May 2007 11:52:09 +0200 (CEST)
From:	Jiri Kosina <jikos@...os.cz>
To:	Nicolas Mailhot <nicolas.mailhot@...oste.net>
cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-usb-devel@...ts.sourceforge.net, Zan Lynx <zlynx@....org>,
	Alan Stern <stern@...land.harvard.edu>
Subject: Re: [BUG] USB input death then system freeze

On Fri, 25 May 2007, Jiri Kosina wrote:

> This is now handled in bugzilla [1]. Zan Lynx also reported this problem, 
> and from the HID_DEBUG output he provided is evident that it is caused by 
> HID layer receiving a report of size 4294967284 (which corresponds to 
> urb->actual_length of the URB received from USB core).

For completness, this is a snippet of HID_DEBUG output that Zan sent me in 
a private mail, which demonstrates the urb->actual_length badness:

...
drivers/hid/hid-core.c: report (size 3) (unnumbered)
drivers/hid/hid-core.c: report 0 (size 3) =  00 00 00
hid-debug: input Keyboard.00e0 = 0
hid-debug: input Keyboard.00e1 = 0
hid-debug: input Keyboard.00e2 = 0
hid-debug: input Keyboard.00e3 = 0
hid-debug: input Keyboard.00e4 = 0
hid-debug: input Keyboard.00e5 = 0
hid-debug: input Keyboard.00e6 = 0
hid-debug: input Keyboard.00e7 = 0
drivers/hid/hid-core.c: report (size 4294967284) (unnumbered)
drivers/hid/hid-core.c: report 0 (size 4294967284) =
hid-debug: input Keyboard.00e0 = 0
hid-debug: input Keyboard.00e1 = 0
hid-debug: input Keyboard.00e2 = 0
hid-debug: input Keyboard.00e3 = 0
hid-debug: input Keyboard.00e4 = 0
hid-debug: input Keyboard.00e5 = 0
hid-debug: input Keyboard.00e6 = 0
hid-debug: input Keyboard.00e7 = 0
drivers/hid/hid-core.c: report (size 6) (numbered)
drivers/hid/hid-core.c: report 2 (size 5) =  00 00 00 00 00
hid-debug: input Button.0001 = 0
hid-debug: input Button.0002 = 0
hid-debug: input Button.0003 = 0
hid-debug: input Button.0004 = 0
hid-debug: input Button.0005 = 0
hid-debug: input Button.0006 = 0
hid-debug: input Button.0007 = 0
hid-debug: input Button.0008 = 0
hid-debug: input GenericDesktop.X = 0
hid-debug: input GenericDesktop.Y = 0
hid-debug: input GenericDesktop.Wheel = 0
Hangcheck: hangcheck value past margin!
drivers/hid/usbhid/hid-core.c: input irq status -75 received

...

-- 
Jiri Kosina
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/