Bug 458756 - kernel: dlm: check for null in device_write [mrg-1]
kernel: dlm: check for null in device_write [mrg-1]
Product: Red Hat Enterprise MRG
Classification: Red Hat
Component: realtime-kernel (Show other bugs)
All Linux
medium Severity medium
: 1.0.3
: ---
Assigned To: Red Hat Real Time Maintenance
Depends On:
  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:
Last Closed: 2008-10-07 15:20:55 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
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-
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.


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