{"id":"CVE-2026-74644","summary":"mm/damon/ops-common: putback folios on invalid migrate nid","details":"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.","modified":"2026-10-28T02:31:11.475870337Z","published":"2026-08-22T15:32:21.899Z","related":["SUSE-SU-2026:23881-1","SUSE-SU-2026:23887-1","SUSE-SU-2026:23897-1","SUSE-SU-2026:23902-1","openSUSE-SU-2026:21910-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74644.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/460181e4bb47a57776c64f0832c2096de8878cb3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5deb65c34e682e7c5f5df417a70e223e8fcc5f5a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7001c0a1bc9018cd5b2b72ebebb216d738b2ec81"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cfef454862b7d2776e0955b873dd59af6b47cfcb"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74644.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74644"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"7c303fa1f311aadc17fa82b7bbf776412adf45de"},{"fixed":"7001c0a1bc9018cd5b2b72ebebb216d738b2ec81"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"7e6c3130690a01076efdf45aa02ba5d5c16849a0"},{"fixed":"460181e4bb47a57776c64f0832c2096de8878cb3"},{"fixed":"cfef454862b7d2776e0955b873dd59af6b47cfcb"},{"fixed":"5deb65c34e682e7c5f5df417a70e223e8fcc5f5a"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.12.44"},{"fixed":"6.12.105"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.16.4"},{"fixed":"6.17"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"9d0c2d15aff96746f99a7c97221bb8ce5b62db19"}]}],"versions":["v6.12.104","v6.12.103","v6.12.102","v6.12.101","v6.12.100","v6.12.99","v6.12.98","v6.12.97","v6.12.96","v6.12.95","v6.12.94","v6.12.93","v6.12.92","v6.12.91","v6.12.90","v6.12.89","v6.12.88","v6.12.87","v6.12.86","v6.12.85","v6.12.84","v6.12.83","v6.12.82","v6.12.81","v6.12.80","v6.12.79","v6.12.78","v6.12.77","v6.12.76","v6.12.75","v6.12.74","v6.12.73","v6.12.72","v6.12.71","v6.12.70","v6.12.69","v6.12.68","v6.12.67","v6.12.66","v6.12.65","v6.12.64","v6.12.63","v6.12.62","v6.12.61","v6.12.60","v6.12.59","v6.12.58","v6.12.57","v6.12.56","v6.12.55","v6.12.54","v6.12.53","v6.12.52","v6.12.51","v6.12.50","v6.12.49","v6.12.48","v6.12.47","v6.12.46","v6.12.45","v6.12.44","v6.16.12","v6.16.11","v6.16.10","v6.16.9","v6.16.8","v6.16.7","v6.16.6","v6.16.5","v6.16.4"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74644.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.105"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.45"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.17.0"},{"fixed":"7.1.9"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74644.json"}}],"schema_version":"1.9.2"}