CVE-2025-39700 mm/damon/ops-common: ignore migration request to invalid nodes

In the Linux kernel, the following vulnerability has been resolved: mm/damon/ops-common: ignore migration request to invalid nodes damonmigratepages tries migration even if the target node is invalid. If users mistakenly make such invalid requests via DAMOSMIGRATEHOT,COLD action, the below kernel...

CVE-2025-39700

CVE-2025-39700 concerns the Linux kernel damon migration code. According to connected advisories, damon_migrate_pages() can perform migration to an invalid target node, triggering a kernel BUG (PAGEFAULT/OOP) on local execution. The fix adds a target-node validity check in damon_migrate_pages(), ...

PT-2025-36294

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 6.16.0-rc5-mm-new-damon+ 93 Description: The Linux kernel contains a flaw in mm/damon/ops-common.c where the damon migrate pages function attempts page migration even if the target node is invalid. This can occu...