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 mshvpartitionregionbyuaddr() as it is no longer used.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68743.json",
"cna_assigner": "Linux"
}