CVE-2021-28039
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-28039
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-28039.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-28039
- Downstream
- Related
- Published
- 2021-03-05T18:15:13Z
- Modified
- 2025-08-09T19:01:26Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
An issue was discovered in the Linux kernel 5.9.x through 5.11.3, as used with Xen. In some less-common configurations, an x86 PV guest OS user can crash a Dom0 or driver domain via a large amount of I/O activity. The issue relates to misuse of guest physical addresses when a configuration has CONFIGXENUNPOPULATEDALLOC but not CONFIGXENBALLOONMEMORY_HOTPLUG.
- References