{"api_version":"1","generated_at":"2026-10-29T10:44:19+00:00","cve":"CVE-2025-68743","urls":{"html":"https://cve.report/CVE-2025-68743","api":"https://cve.report/api/cve/CVE-2025-68743.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2025-68743","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-68743"},"summary":{"title":"mshv: Fix create memory region overlap check","description":"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't 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.","state":"PUBLISHED","assigner":"Linux","published_at":"2025-12-24 13:16:29","updated_at":"2026-10-13 10:10:00"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/ba9eb9b86d232854e983203dc2fb1ba18e316681","name":"https://git.kernel.org/stable/c/ba9eb9b86d232854e983203dc2fb1ba18e316681","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ab3e7a78d83a61d335458cfe2e4d17eba69ae73d","name":"https://git.kernel.org/stable/c/ab3e7a78d83a61d335458cfe2e4d17eba69ae73d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2183924dd834e0703f87e17c17e689bcbf55d69d","name":"https://git.kernel.org/stable/c/2183924dd834e0703f87e17c17e689bcbf55d69d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-68743","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-68743","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 621191d709b14882270dfd8ea5d7d6cdfebe2c35 2183924dd834e0703f87e17c17e689bcbf55d69d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 621191d709b14882270dfd8ea5d7d6cdfebe2c35 ab3e7a78d83a61d335458cfe2e4d17eba69ae73d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 621191d709b14882270dfd8ea5d7d6cdfebe2c35 ba9eb9b86d232854e983203dc2fb1ba18e316681 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.15","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.15 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.17.13 6.17.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.2 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/hv/mshv_root_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"2183924dd834e0703f87e17c17e689bcbf55d69d","status":"affected","version":"621191d709b14882270dfd8ea5d7d6cdfebe2c35","versionType":"git"},{"lessThan":"ab3e7a78d83a61d335458cfe2e4d17eba69ae73d","status":"affected","version":"621191d709b14882270dfd8ea5d7d6cdfebe2c35","versionType":"git"},{"lessThan":"ba9eb9b86d232854e983203dc2fb1ba18e316681","status":"affected","version":"621191d709b14882270dfd8ea5d7d6cdfebe2c35","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/hv/mshv_root_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.15"},{"lessThan":"6.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.17.*","status":"unaffected","version":"6.17.13","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.2","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.19","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.17.13","versionStartIncluding":"6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.2","versionStartIncluding":"6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19","versionStartIncluding":"6.15","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","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't 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."}],"providerMetadata":{"dateUpdated":"2026-05-11T21:52:29.313Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/2183924dd834e0703f87e17c17e689bcbf55d69d"},{"url":"https://git.kernel.org/stable/c/ab3e7a78d83a61d335458cfe2e4d17eba69ae73d"},{"url":"https://git.kernel.org/stable/c/ba9eb9b86d232854e983203dc2fb1ba18e316681"}],"title":"mshv: Fix create memory region overlap check","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2025-68743","datePublished":"2025-12-24T12:09:40.148Z","dateReserved":"2025-12-24T10:30:51.030Z","dateUpdated":"2026-05-11T21:52:29.313Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2025-12-24 13:16:29","lastModifiedDate":"2026-10-13 10:10:00","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2025","CveId":"68743","Ordinal":"1","Title":"mshv: Fix create memory region overlap check","CVE":"CVE-2025-68743","Year":"2025"},"notes":[{"CveYear":"2025","CveId":"68743","Ordinal":"1","NoteData":"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't 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.","Type":"Description","Title":"mshv: Fix create memory region overlap check"}]}}}