Bug 217994 - blkback: Copy shared data before verification
Summary: blkback: Copy shared data before verification
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kernel-xen
Version: 5.0
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
: ---
Assignee: Rik van Riel
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2006-12-01 05:24 UTC by Herbert Xu
Modified: 2007-11-30 22:07 UTC (History)
1 user (show)

Fixed In Version: 5.0.0
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2007-01-26 20:55:52 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description Herbert Xu 2006-12-01 05:24:13 UTC 
We want changeset 11859 from xen-unstable.

[BLOCK] blkback: Copy shared data before verification

As it is blkback verifies the metadata from the frontend in place.
This means we run the risk of the frontend changing the data after
we've verified it.  This patch copies the data onto the stack before
verifying and using it to ensure we see a consistent snapshot.

Signed-off-by: Herbert Xu <herbert.org.au>
Comment 2 Jay Turner 2006-12-06 22:49:26 UTC 
QE ack for RHEL5.  Bugs in new features/functionality.
Comment 3 Don Zickus 2006-12-06 23:02:43 UTC 
in 2.6.18-1.2839.el5
Comment 4 Jay Turner 2007-01-26 20:55:52 UTC 
2.6.18-7.el5 included in 20070125.0.
Note You need to log in before you can comment on or make changes to this bug.