Bug 439643

Summary:	uvcvideo busted on x86-64
Product:	[Fedora] Fedora	Reporter:	Dave Jones <davej>
Component:	kernel	Assignee:	Kyle McMartin <kmcmartin>
Status:	CLOSED RAWHIDE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	low	Docs Contact:
Priority:	low
Version:	rawhide	CC:	amlau, arjan, kernel-maint, peterm, pfrields
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2008-04-14 16:46:52 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Dave Jones 2008-03-29 23:04:52 UTC

uvcvideo is one of the most common oopses reported at kerneloops..
http://www.kerneloops.org/oops.php?number=4254

The line that's causing the oops is in uvc_get_video_ctrl

        frame = &format->frame[ctrl->bFrameIndex - 1];
        ctrl->dwMaxVideoFrameSize = frame->dwMaxVideoFrameBufferSize;

It seems that frame ends up being a poison value causing the 2nd line to go boom

Comment 1 Dave Jones 2008-03-30 02:14:19 UTC

*** Bug 439658 has been marked as a duplicate of this bug. ***

Comment 2 Brandon Philips 2008-04-09 19:13:02 UTC

Dave-

The fix is trivial and in r199 in SVN.

Thanks,

Brandon

Comment 3 Kyle McMartin 2008-04-09 19:33:38 UTC

My testing last night confirms this. rev 200 should be in kernels built from
today (once I finish build testing.)

cheers, Kyle

Comment 4 Dave Jones 2008-04-14 16:46:52 UTC

This should be fixed now.