CVE-2026-74644
Gravedad:
Pendiente de análisis
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
22/08/2026
Última modificación:
23/08/2026
Descripción
*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
mm/damon/ops-common: putback folios on invalid migrate nid<br />
<br />
damon_pa_migrate() and damos_va_migrate() isolate folios into a local list<br />
and then call damon_migrate_pages(). When target_nid is invalid<br />
(including the scheme default NUMA_NO_NODE / -1), damon_migrate_pages()<br />
returns early without putting the folios back to the LRU.<br />
<br />
Callers then discard the list head while those folios remain isolated with<br />
an extra reference taken by folio_isolate_lru(). The pages stay off the<br />
LRU for as long as the mapping exists (anon active+inactive counts drop<br />
while RSS does not), and the leftover references can pin the pages after<br />
the mapping is gone.<br />
<br />
Put the folios back on the invalid-nid path so ignored migration requests<br />
still return them to the LRU.


