{"api_version":"1","generated_at":"2026-09-27T01:43:06+00:00","cve":"CVE-2026-80729","urls":{"html":"https://cve.report/CVE-2026-80729","api":"https://cve.report/api/cve/CVE-2026-80729.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-80729","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-80729"},"summary":{"title":"mm/huge_memory: initialise workingset state before folio split","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: initialise workingset state before folio split\n\nxas_try_split() adds __GFP_ACCOUNT for page-cache xa_nodes, but\n__folio_split() leaves the xa_state's xa_lru unset.  That lets a live,\nmemcg-charged xa_node exist without being linked into the mapping's\nshadow_nodes list_lru; when reclaim later walks the list_lru it trips\nVM_WARN_ON(!css_is_dying()).\n\nUse mapping_set_update() to install both the workingset update callback\nand the shadow_nodes list_lru on the xa_state.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-03 13:06:11","updated_at":"2026-09-03 13:06:11"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/aca1f2d5de17e138bc6c4859126b77e516b82541","name":"https://git.kernel.org/stable/c/aca1f2d5de17e138bc6c4859126b77e516b82541","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d858f7c9fc514f1d9d3be7d00b2dd4e2f2383b55","name":"https://git.kernel.org/stable/c/d858f7c9fc514f1d9d3be7d00b2dd4e2f2383b55","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80729","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80729","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 58729c04cf1092b87aeef0bf0998c9e2e4771133 d858f7c9fc514f1d9d3be7d00b2dd4e2f2383b55 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 58729c04cf1092b87aeef0bf0998c9e2e4771133 aca1f2d5de17e138bc6c4859126b77e516b82541 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 7.1.9 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":"80729","cve":"CVE-2026-80729","epss":"0.001890000","percentile":"0.086080000","score_date":"2026-09-07","updated_at":"2026-09-08 00:05:28"},"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":"d858f7c9fc514f1d9d3be7d00b2dd4e2f2383b55","status":"affected","version":"58729c04cf1092b87aeef0bf0998c9e2e4771133","versionType":"git"},{"lessThan":"aca1f2d5de17e138bc6c4859126b77e516b82541","status":"affected","version":"58729c04cf1092b87aeef0bf0998c9e2e4771133","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":"6.15"},{"lessThan":"6.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.9","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":"7.1.9","versionStartIncluding":"6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"6.15","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: initialise workingset state before folio split\n\nxas_try_split() adds __GFP_ACCOUNT for page-cache xa_nodes, but\n__folio_split() leaves the xa_state's xa_lru unset.  That lets a live,\nmemcg-charged xa_node exist without being linked into the mapping's\nshadow_nodes list_lru; when reclaim later walks the list_lru it trips\nVM_WARN_ON(!css_is_dying()).\n\nUse mapping_set_update() to install both the workingset update callback\nand the shadow_nodes list_lru on the xa_state."}],"providerMetadata":{"dateUpdated":"2026-09-03T08:21:47.722Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/d858f7c9fc514f1d9d3be7d00b2dd4e2f2383b55"},{"url":"https://git.kernel.org/stable/c/aca1f2d5de17e138bc6c4859126b77e516b82541"}],"title":"mm/huge_memory: initialise workingset state before folio split","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-80729","datePublished":"2026-09-03T08:21:47.722Z","dateReserved":"2026-08-26T14:34:25.789Z","dateUpdated":"2026-09-03T08:21:47.722Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-03 13:06:11","lastModifiedDate":"2026-09-03 13:06:11","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"80729","Ordinal":"1","Title":"mm/huge_memory: initialise workingset state before folio split","CVE":"CVE-2026-80729","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"80729","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: initialise workingset state before folio split\n\nxas_try_split() adds __GFP_ACCOUNT for page-cache xa_nodes, but\n__folio_split() leaves the xa_state's xa_lru unset.  That lets a live,\nmemcg-charged xa_node exist without being linked into the mapping's\nshadow_nodes list_lru; when reclaim later walks the list_lru it trips\nVM_WARN_ON(!css_is_dying()).\n\nUse mapping_set_update() to install both the workingset update callback\nand the shadow_nodes list_lru on the xa_state.","Type":"Description","Title":"mm/huge_memory: initialise workingset state before folio split"}]}}}