{"id":"CVE-2026-74644","title":"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…","summary":"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…","severity":"none","published":"2026-08-22","updated":"2026-10-14","sourceUpdated":"2026-10-14T13:10:00.187","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74644","references":[{"url":"https://git.kernel.org/stable/c/460181e4bb47a57776c64f0832c2096de8878cb3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5deb65c34e682e7c5f5df417a70e223e8fcc5f5a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7001c0a1bc9018cd5b2b72ebebb216d738b2ec81","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/cfef454862b7d2776e0955b873dd59af6b47cfcb","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd"],"epss":0.00168,"epssPercentile":0.05632,"ingestedAt":"2026-10-14T13:30:58.525Z","slug":"CVE-2026-74644","body":"## Overview\n\nIn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}