CVE-2026-63813

Summary: CVE-2026-63813 relates to the Linux kernel and a revert of a previous f2fs change in move_data_block that could cause page-cache/folio handling race conditions. The embedded details describe a race where the GC path can evict the tail-end folio from the page cache, drop page-cache refere...

kernel: mm/page_alloc: clear page->private in free_pages_prepare()

A flaw was found in the Linux kernel's memory management subsystem. When pages are freed, the page-private field is not properly cleared. If these pages are later reallocated as high-order pages and split, the tail pages can retain stale page-private values. This can lead to a use-after-free...

kernel: mm/page_alloc: clear page->private in free_pages_prepare()

A flaw was found in the Linux kernel's memory management subsystem. When pages are freed, the page-private field is not properly cleared. If these pages are later reallocated as high-order pages and split, the tail pages can retain stale page-private values. This can lead to a use-after-free...