CVE-2025-68743 (GCVE-0-2025-68743)
Vulnerability from cvelistv5
Published
2025-12-24 12:09
Modified
2025-12-24 12:09
Severity ?
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 621191d709b14882270dfd8ea5d7d6cdfebe2c35
Version: 621191d709b14882270dfd8ea5d7d6cdfebe2c35
Version: 621191d709b14882270dfd8ea5d7d6cdfebe2c35
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          "product": "Linux",
          "programFiles": [
            "drivers/hv/mshv_root_main.c"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmshv: Fix create memory region overlap check\n\nThe current check is incorrect; it only checks if the beginning or end\nof a region is within an existing region. This doesn\u0027t account for\nuserspace specifying a region that begins before and ends after an\nexisting region.\n\nChange the logic to a range intersection check against gfns and uaddrs\nfor each region.\n\nRemove mshv_partition_region_by_uaddr() as it is no longer used."
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      "providerMetadata": {
        "dateUpdated": "2025-12-24T12:09:40.148Z",
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    "datePublished": "2025-12-24T12:09:40.148Z",
    "dateReserved": "2025-12-24T10:30:51.030Z",
    "dateUpdated": "2025-12-24T12:09:40.148Z",
    "state": "PUBLISHED"
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  }
}


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