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Bug 631502 - spice: qxl overruns the release ring
Summary: spice: qxl overruns the release ring
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: qemu-kvm
Version: 6.0
Hardware: All
OS: Linux
low
medium
Target Milestone: rc
: ---
Assignee: Gerd Hoffmann
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On:
Blocks: 631509
TreeView+ depends on / blocked
 
Reported: 2010-09-07 19:46 UTC by Gerd Hoffmann
Modified: 2014-01-17 12:42 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
: 631509 (view as bug list)
Environment:
Last Closed: 2010-09-09 09:47:35 UTC
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)
fix (808 bytes, patch)
2010-09-07 19:49 UTC, Gerd Hoffmann
no flags Details | Diff

Description Gerd Hoffmann 2010-09-07 19:46:32 UTC
Description of problem:
The qxl backend in qemu can overrun the release ring.  The result is that the guest will miss release events, thus will not release the qxl device memory associated with them.  The memory leak may make qxl go out of memory and stop working.

Version-Release number of selected component (if applicable):
qemu-kvm-0.12.1.2-2.113.el6.x86_64

How reproducible:
No reproducer, found by code review.

Comment 1 Gerd Hoffmann 2010-09-07 19:49:04 UTC
Created attachment 445768 [details]
fix

Comment 4 Gerd Hoffmann 2010-09-09 09:47:35 UTC
Patch review figured the current code is correct as-is.


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