The fix for XSA-365 includes initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values. This initialization went too far and may under certain conditions also overwrite pointers which are in need of cleaning up. The lack of cleanup would result in leaking persistent grants. The leak in turn would prevent fully cleaning up after a respective guest has died, leaving around zombie domains. All Linux versions having the fix for XSA-365 applied are vulnerable. XSA-365 was classified to affect versions back to at least 3.11.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: XEN
Published: 2021-04-06T18:07:41
Updated: 2024-08-03T21:47:33.121Z
Reserved: 2021-03-18T00:00:00
Link: CVE-2021-28688
Vulnrichment
No data.
NVD
Status : Modified
Published: 2021-04-06T19:15:14.863
Modified: 2024-11-21T06:00:08.800
Link: CVE-2021-28688
Redhat
No data.