CVE-2025-68743
Unknown
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.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedDec 24, 2025
First seenDec 24, 2025
How to fix
Update
- Linux Linux2183924dd834e0703f87e17c17e689bcbf55d69d, ab3e7a78d83a61d335458cfe2e4d17eba69ae73d, ba9eb9b86d232854e983203dc2fb1ba18e316681 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 621191d709b14882270dfd8ea5d7d6cdfebe2c35 ≤ v < 2183924dd834e0703f87e17c17e689bcbf55d69d, 621191d709b14882270dfd8ea5d7d6cdfebe2c35 ≤ v < ab3e7a78d83a61d335458cfe2e4d17eba69ae73d, 621191d709b14882270dfd8ea5d7d6cdfebe2c35 ≤ v < ba9eb9b86d232854e983203dc2fb1ba18e316681, 6.15 | 2183924dd834e0703f87e17c17e689bcbf55d69d, ab3e7a78d83a61d335458cfe2e4d17eba69ae73d, ba9eb9b86d232854e983203dc2fb1ba18e316681 |
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