CVE-2021-28039
Medium
Description
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.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Linux Kernel
PublishedMar 5, 2021
First seenMar 5, 2021
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.9.0 ≤ v ≤ 5.11.3 | — |
| xen xen | No range specified | — |
| netapp cloud_backup | No range specified | — |
| netapp solidfire_baseboard_management_controller_firmware | No range specified | — |
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