Re: [PATCH v1] fsnotify: Pass correct offset to fsnotify_mmap_perm()

On Fri, Oct 03, 2025 at 04:52:36PM +0100, Ryan Roberts wrote:

fsnotify_mmap_perm() requires a byte offset for the file about to be mmap'ed. But it is called from vm_mmap_pgoff(), which has a page offset. Previously the conversion was done incorrectly so let's fix it, being careful not to overflow on 32-bit platforms.

Discovered during code review.

Heh. Just submitted fix for the same issue:

https://lore.kernel.org/all/20251003155804.1571242-1-kirill@shutemov.name/T/...