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CVE PROGRAM SOURCE RECORDUnscored

CVE-2021-28688

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

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Status
Published
Published
Updated
Assigning organization
XEN

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

  • unspecified to < 4.12unknown
  • 3.11 to < unspecifiedaffected
  • next of 4.3 to < unspecifiedunaffected

Linux Linux

  • 5.11.1affected

Linux Linux

  • 5.12-rcaffected

Linux Linux

  • 5.10.18affected

Linux Linux

  • unspecified to < 4.12unknown
  • 4.4 to < unspecifiedunknown
  • next of 5.9 to < unspecifiedunaffected

References