{"api_version":"1","generated_at":"2026-08-18T13:35:39+00:00","cve":"CVE-2026-72180","urls":{"html":"https://cve.report/CVE-2026-72180","api":"https://cve.report/api/cve/CVE-2026-72180.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-72180","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-72180"},"summary":{"title":"mm/huge_memory: preserve pmd_swp_uffd_wp on device-private PMD downgrade","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: preserve pmd_swp_uffd_wp on device-private PMD downgrade\n\nchange_non_present_huge_pmd() rewrites a writable device-private PMD swap\nentry into a readable one without carrying pmd_swp_uffd_wp() across.  The\nPTE-level change_softleaf_pte() does this correctly; mirror that here,\nmatching what copy_huge_pmd() does for the fork path.  Without the carry,\na plain mprotect() over a UFFD_WP-marked device-private THP strips the bit\nand the trap is bypassed on swap-in.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 06:21:36","updated_at":"2026-08-17 06:18:18"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/2611f7521c6c124b1bef1be4fc319e0ca144502f","name":"https://git.kernel.org/stable/c/2611f7521c6c124b1bef1be4fc319e0ca144502f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f7e2c21bd1f57cd5350eecdfdb5d6025ca6afbab","name":"https://git.kernel.org/stable/c/f7e2c21bd1f57cd5350eecdfdb5d6025ca6afbab","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-72180","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72180","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 368076f52ebeecd33e10a9f80905d7508b6b6149 2611f7521c6c124b1bef1be4fc319e0ca144502f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 368076f52ebeecd33e10a9f80905d7508b6b6149 f7e2c21bd1f57cd5350eecdfdb5d6025ca6afbab git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.19","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.5 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"72180","cve":"CVE-2026-72180","epss":"0.002010000","percentile":"0.102980000","score_date":"2026-08-17","updated_at":"2026-08-18 00:11:47"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["mm/huge_memory.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"2611f7521c6c124b1bef1be4fc319e0ca144502f","status":"affected","version":"368076f52ebeecd33e10a9f80905d7508b6b6149","versionType":"git"},{"lessThan":"f7e2c21bd1f57cd5350eecdfdb5d6025ca6afbab","status":"affected","version":"368076f52ebeecd33e10a9f80905d7508b6b6149","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["mm/huge_memory.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.5","versionStartIncluding":"6.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"6.19","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: preserve pmd_swp_uffd_wp on device-private PMD downgrade\n\nchange_non_present_huge_pmd() rewrites a writable device-private PMD swap\nentry into a readable one without carrying pmd_swp_uffd_wp() across.  The\nPTE-level change_softleaf_pte() does this correctly; mirror that here,\nmatching what copy_huge_pmd() does for the fork path.  Without the carry,\na plain mprotect() over a UFFD_WP-marked device-private THP strips the bit\nand the trap is bypassed on swap-in."}],"providerMetadata":{"dateUpdated":"2026-08-17T05:09:43.031Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/2611f7521c6c124b1bef1be4fc319e0ca144502f"},{"url":"https://git.kernel.org/stable/c/f7e2c21bd1f57cd5350eecdfdb5d6025ca6afbab"}],"title":"mm/huge_memory: preserve pmd_swp_uffd_wp on device-private PMD downgrade","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-72180","datePublished":"2026-08-15T05:53:43.718Z","dateReserved":"2026-08-09T03:40:39.910Z","dateUpdated":"2026-08-17T05:09:43.031Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 06:21:36","lastModifiedDate":"2026-08-17 06:18:18","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"72180","Ordinal":"1","Title":"mm/huge_memory: preserve pmd_swp_uffd_wp on device-private PMD d","CVE":"CVE-2026-72180","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"72180","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: preserve pmd_swp_uffd_wp on device-private PMD downgrade\n\nchange_non_present_huge_pmd() rewrites a writable device-private PMD swap\nentry into a readable one without carrying pmd_swp_uffd_wp() across.  The\nPTE-level change_softleaf_pte() does this correctly; mirror that here,\nmatching what copy_huge_pmd() does for the fork path.  Without the carry,\na plain mprotect() over a UFFD_WP-marked device-private THP strips the bit\nand the trap is bypassed on swap-in.","Type":"Description","Title":"mm/huge_memory: preserve pmd_swp_uffd_wp on device-private PMD d"}]}}}