Bug 126409

Summary: CAN-2004-0075 Vicam USB user/kernel copying (ipf)
Product: Red Hat Enterprise Linux 2.1 Reporter: Mark J. Cox <mjc>
Component: kernelAssignee: Jim Paradis <jparadis>
Status: CLOSED NOTABUG QA Contact: Brian Brock <bbrock>
Severity: medium Docs Contact:
Priority: medium    
Version: 2.1CC: peterm, riel
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2004-12-01 09:55:18 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Description Mark J. Cox 2004-06-21 10:04:17 UTC
"The Vicam USB driver does not use the copy_from_user function when
copying data from userspace to kernel space, which crosses security
boundaries and allows local users to cause a denial of service."

Only affects Red Hat Advanced Workstation/Advanced Server (ipf)

patches and details at:
http://marc.theaimsgroup.com/?l=linux-kernel&m=108197561914277 and

Comment 1 Jim Paradis 2004-12-01 09:55:18 UTC
NOTABUG.  There is no vicam driver in 2.1AS i386 (pensacola), and the
driver in 2.1AS ia64 already uses copy_from_user/copy_to_user.

Comment 2 Mark J. Cox 2004-12-01 10:05:36 UTC
Agreed, this is fixed in the upstream 2.4.18

Comment 3 Mark J. Cox 2004-12-01 10:14:30 UTC
For completeness the reason for this confusion is that Alan Cox fixed
this missing copy_*_user in 2.4.25.  However the problem was caused by
a n earlier commit, so only 2.4.21, 2.4.22, 2.4.23, 2.4.24 were

(20021205 cset@3defd0e9x_YHB2ivyh_e3llqMHnZIA)
(20030505 cset@3eb6f9adaMJb2lm0SmLglM-WkSdDdA)