CVE-2025-68743 - mshv: Fix create memory region overlap check

CVE-2025-68743 - mshv: Fix create memory region overlap check

https://cvefeed.io/rssfeed/latest.atom / Wed, 12/24/2025 - 16:54
CVE ID : CVE-2025-68743
Published : Dec. 24, 2025, 1:16 p.m. | 1 hour, 34 minutes ago
Description : In the Linux kernel, the following vulnerability has been resolved: mshv: Fix create memory region overlap check The current check is incorrect; it only checks if the beginning or end of a region is within an existing region. This doesn't account for userspace specifying a region that begins before and ends after an existing region. Change the logic to a range intersection check against gfns and uaddrs for each region. Remove mshv_partition_region_by_uaddr() as it is no longer used.
Severity: 0.0 | NA
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