{"api_version":"1","generated_at":"2026-08-22T21:53:01+00:00","cve":"CVE-2026-74644","urls":{"html":"https://cve.report/CVE-2026-74644","api":"https://cve.report/api/cve/CVE-2026-74644.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74644","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74644"},"summary":{"title":"mm/damon/ops-common: putback folios on invalid migrate nid","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/ops-common: putback folios on invalid migrate nid\n\ndamon_pa_migrate() and damos_va_migrate() isolate folios into a local list\nand then call damon_migrate_pages().  When target_nid is invalid\n(including the scheme default NUMA_NO_NODE / -1), damon_migrate_pages()\nreturns early without putting the folios back to the LRU.\n\nCallers then discard the list head while those folios remain isolated with\nan extra reference taken by folio_isolate_lru().  The pages stay off the\nLRU for as long as the mapping exists (anon active+inactive counts drop\nwhile RSS does not), and the leftover references can pin the pages after\nthe mapping is gone.\n\nPut the folios back on the invalid-nid path so ignored migration requests\nstill return them to the LRU.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-22 16:16:37","updated_at":"2026-08-22 16:16:37"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/5deb65c34e682e7c5f5df417a70e223e8fcc5f5a","name":"https://git.kernel.org/stable/c/5deb65c34e682e7c5f5df417a70e223e8fcc5f5a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/460181e4bb47a57776c64f0832c2096de8878cb3","name":"https://git.kernel.org/stable/c/460181e4bb47a57776c64f0832c2096de8878cb3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/cfef454862b7d2776e0955b873dd59af6b47cfcb","name":"https://git.kernel.org/stable/c/cfef454862b7d2776e0955b873dd59af6b47cfcb","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74644","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74644","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7e6c3130690a01076efdf45aa02ba5d5c16849a0 460181e4bb47a57776c64f0832c2096de8878cb3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7e6c3130690a01076efdf45aa02ba5d5c16849a0 cfef454862b7d2776e0955b873dd59af6b47cfcb git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7e6c3130690a01076efdf45aa02ba5d5c16849a0 5deb65c34e682e7c5f5df417a70e223e8fcc5f5a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7c303fa1f311aadc17fa82b7bbf776412adf45de git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9d0c2d15aff96746f99a7c97221bb8ce5b62db19 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.12.44 6.13 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.16.4 6.17 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.17","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.17 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.45 6.18.* 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":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["mm/damon/ops-common.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"460181e4bb47a57776c64f0832c2096de8878cb3","status":"affected","version":"7e6c3130690a01076efdf45aa02ba5d5c16849a0","versionType":"git"},{"lessThan":"cfef454862b7d2776e0955b873dd59af6b47cfcb","status":"affected","version":"7e6c3130690a01076efdf45aa02ba5d5c16849a0","versionType":"git"},{"lessThan":"5deb65c34e682e7c5f5df417a70e223e8fcc5f5a","status":"affected","version":"7e6c3130690a01076efdf45aa02ba5d5c16849a0","versionType":"git"},{"status":"affected","version":"7c303fa1f311aadc17fa82b7bbf776412adf45de","versionType":"git"},{"status":"affected","version":"9d0c2d15aff96746f99a7c97221bb8ce5b62db19","versionType":"git"},{"lessThan":"6.13","status":"affected","version":"6.12.44","versionType":"semver"},{"lessThan":"6.17","status":"affected","version":"6.16.4","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["mm/damon/ops-common.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.17"},{"lessThan":"6.17","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.45","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":"6.18.45","versionStartIncluding":"6.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.9","versionStartIncluding":"6.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"6.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12.44","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16.4","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/ops-common: putback folios on invalid migrate nid\n\ndamon_pa_migrate() and damos_va_migrate() isolate folios into a local list\nand then call damon_migrate_pages().  When target_nid is invalid\n(including the scheme default NUMA_NO_NODE / -1), damon_migrate_pages()\nreturns early without putting the folios back to the LRU.\n\nCallers then discard the list head while those folios remain isolated with\nan extra reference taken by folio_isolate_lru().  The pages stay off the\nLRU for as long as the mapping exists (anon active+inactive counts drop\nwhile RSS does not), and the leftover references can pin the pages after\nthe mapping is gone.\n\nPut the folios back on the invalid-nid path so ignored migration requests\nstill return them to the LRU."}],"providerMetadata":{"dateUpdated":"2026-08-22T15:32:21.899Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/460181e4bb47a57776c64f0832c2096de8878cb3"},{"url":"https://git.kernel.org/stable/c/cfef454862b7d2776e0955b873dd59af6b47cfcb"},{"url":"https://git.kernel.org/stable/c/5deb65c34e682e7c5f5df417a70e223e8fcc5f5a"}],"title":"mm/damon/ops-common: putback folios on invalid migrate nid","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74644","datePublished":"2026-08-22T15:32:21.899Z","dateReserved":"2026-08-15T05:44:03.923Z","dateUpdated":"2026-08-22T15:32:21.899Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-22 16:16:37","lastModifiedDate":"2026-08-22 16:16:37","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74644","Ordinal":"1","Title":"mm/damon/ops-common: putback folios on invalid migrate nid","CVE":"CVE-2026-74644","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74644","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/ops-common: putback folios on invalid migrate nid\n\ndamon_pa_migrate() and damos_va_migrate() isolate folios into a local list\nand then call damon_migrate_pages().  When target_nid is invalid\n(including the scheme default NUMA_NO_NODE / -1), damon_migrate_pages()\nreturns early without putting the folios back to the LRU.\n\nCallers then discard the list head while those folios remain isolated with\nan extra reference taken by folio_isolate_lru().  The pages stay off the\nLRU for as long as the mapping exists (anon active+inactive counts drop\nwhile RSS does not), and the leftover references can pin the pages after\nthe mapping is gone.\n\nPut the folios back on the invalid-nid path so ignored migration requests\nstill return them to the LRU.","Type":"Description","Title":"mm/damon/ops-common: putback folios on invalid migrate nid"}]}}}