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Redhat.comRH:CVE-2021-28039HistoryMay 21, 2022 - 12:22 a.m.
CVE-2021-28039
2022-05-2100:22:17
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10
0.0004 Low
EPSS
Percentile
5.1%
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 CONFIG_XEN_UNPOPULATED_ALLOC but not CONFIG_XEN_BALLOON_MEMORY_HOTPLUG.
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