{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-72180","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-08-09T03:40:39.910Z","datePublished":"2026-08-15T05:53:43.718Z","dateUpdated":"2026-08-17T05:09:43.031Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-17T05:09:43.031Z"},"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/huge_memory.c"],"versions":[{"version":"368076f52ebeecd33e10a9f80905d7508b6b6149","lessThan":"2611f7521c6c124b1bef1be4fc319e0ca144502f","status":"affected","versionType":"git"},{"version":"368076f52ebeecd33e10a9f80905d7508b6b6149","lessThan":"f7e2c21bd1f57cd5350eecdfdb5d6025ca6afbab","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/huge_memory.c"],"versions":[{"version":"6.19","status":"affected"},{"version":"0","lessThan":"6.19","status":"unaffected","versionType":"semver"},{"version":"7.1.5","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.2"}]}]}],"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"}}}}