Bug 458756 - kernel: dlm: check for null in device_write [mrg-1]
kernel: dlm: check for null in device_write [mrg-1]
Status: CLOSED ERRATA
Product: Red Hat Enterprise MRG
Classification: Red Hat
Component: realtime-kernel (Show other bugs)
1.0
All Linux
medium Severity medium
: 1.0.3
: ---
Assigned To: Red Hat Real Time Maintenance
:
Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2008-08-12 00:11 EDT by Eugene Teo (Security Response)
Modified: 2008-10-07 15:20 EDT (History)
5 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Environment:
Last Closed: 2008-10-07 15:20:55 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


Attachments (Terms of Use)
Upstream patch for this issue (1.03 KB, patch)
2008-08-12 00:13 EDT, Eugene Teo (Security Response)
no flags Details | Diff

  None (edit)
Description Eugene Teo (Security Response) 2008-08-12 00:11:59 EDT
Description of problem:
If device_write function is called via dlm-control, file->private_data will be NULL. See ctl_device_open() in user.c. Through proc->flags is read.
Comment 2 Eugene Teo (Security Response) 2008-08-12 00:13:55 EDT
Created attachment 314042 [details]
Upstream patch for this issue
Comment 3 Beth Uptagrafft 2008-09-05 14:34:16 EDT
in -77.
Comment 5 David Sommerseth 2008-09-23 07:42:55 EDT
Verified that upstream patch 254ae43ab8d7877c980fca3636624e0777a70fa4 is implemented as commit 2636c514d9a35c7bf9d39f40c9c57849df90895d in mrt-rt-2.6.24.7-81
Comment 7 errata-xmlrpc 2008-10-07 15:20:55 EDT
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2008-0857.html

Note You need to log in before you can comment on or make changes to this bug.