CVE-2026-64064

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix netfsinvalidatefolio to clear dirty bit if all changes gone If a streaming write is made, this will leave the relevant modified folio in a not-uptodate, but dirty state with a netfsfolio struct hung off of folio-privat...

CVE-2026-64064

CVE-2026-64064 affects the Linux kernel netfs library , specifically netfs_invalidate_folio(). When a streaming write leaves a folio in a dirty state and the file is subsequently truncated, the netfs_folio struct is discarded while the dirty flag remains set . A later mmap() read triggers netfs_r...