Bug 2135640 (CVE-2022-33746) - CVE-2022-33746 xen: P2M pool freeing may take excessively long
Summary: CVE-2022-33746 xen: P2M pool freeing may take excessively long
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2022-33746
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2135641
Blocks:
TreeView+ depends on / blocked
 
Reported: 2022-10-18 06:33 UTC by Marian Rehak
Modified: 2022-11-30 04:16 UTC (History)
2 users (show)

Fixed In Version:
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Last Closed: 2022-11-30 04:16:29 UTC

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Description Marian Rehak 2022-10-18 06:33:55 UTC 
P2M pool freeing may take excessively long The P2M pool backing second level address translation for guests may be of significant size. Therefore its freeing may take more time than is reasonable without intermediate preemption checks. Such checking for the need to preempt was so far missing.

Reference:

https://xenbits.xenproject.org/xsa/advisory-410.txt
Comment 1 Marian Rehak 2022-10-18 06:34:11 UTC 
Created xen tracking bugs for this issue:

Affects: fedora-all [bug 2135641]
Comment 2 Product Security DevOps Team 2022-11-30 04:16:26 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
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