CVE-2026-93216

The Linux kernel contains a Time-of-Check to Time-of-Use (TOCTOU) vulnerability in mm/page_owner. The function print_page_owner_memcg() initially reads page->memcg_data but subsequently re-reads it locklessly in page_memcg_check(page) and PageMemcgKmem(page). If a page is concurrently freed an...

EUVD-2026-85945

In the Linux kernel, the following vulnerability has been resolved: mm/pageowner: use memcgdata snapshot to avoid TOCTOU in printpageownermemcg printpageownermemcg reads page-memcgdata via READONCE at the start to guard against tail pages and NULL data. However, it later re-reads page-memcgdata...