Bug 699808
| Summary: | dasd: fix race between open and offline [rhel-5.6.z] | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 5 | Reporter: | Ken Reilly <kreilly> |
| Component: | kernel | Assignee: | Phillip Lougher <plougher> |
| Status: | CLOSED ERRATA | QA Contact: | Red Hat Kernel QE team <kernel-qe> |
| Severity: | urgent | Docs Contact: | |
| Priority: | urgent | ||
| Version: | 5.6 | CC: | anton, balkov, bdonahue, brueckner, bugproxy, dhoward, jkachuck, jpirko, jwest, peterm, plougher, pm-eus, rprice |
| Target Milestone: | rc | Keywords: | ZStream |
| Target Release: | --- | ||
| Hardware: | s390x | ||
| OS: | All | ||
| Whiteboard: | |||
| Fixed In Version: | kernel-2.6.18-238.11.1.el5 | Doc Type: | Bug Fix |
| Doc Text: |
Setting a DASD (Direct Access Storage Device) device offline while another process is trying to open that device caused a race in the dasd_open function. The dasd_open function tried to read a pointer from the private_data field after the structure has already been freed, resulting in a dereference of an invalid pointer. With this update, the aforementioned pointer is now stored in a different structure; thus, preventing the race condition.
|
Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2011-05-31 14:08:23 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: | |||
| Bug Depends On: | 695357 | ||
| Bug Blocks: | |||
|
Description
Ken Reilly
2011-04-26 16:22:05 UTC
in kernel-2.6.18-238.11.1.el5 linux-2.6-s390-dasd-fix-race-between-open-and-offline.patch 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-2011-0833.html
Technical note added. If any revisions are required, please edit the "Technical Notes" field
accordingly. All revisions will be proofread by the Engineering Content Services team.
New Contents:
Setting a DASD (Direct Access Storage Device) device offline while another process is trying to open that device caused a race in the dasd_open function. The dasd_open function tried to read a pointer from the private_data field after the structure has already been freed, resulting in a dereference of an invalid pointer. With this update, the aforementioned pointer is now stored in a different structure; thus, preventing the race condition.
|