On 18.11.22 01:34, Kees Cook wrote:
It does not appear that FOLL_FORCE should be needed for setting up the stack pages. They are allocated using the nascent brpm->vma, which was newly created with VM_STACK_FLAGS, which an arch can override, but they all appear to include VM_WRITE | VM_MAYWRITE. Remove FOLL_FORCE. Cc: Eric Biederman <ebiederm@xxxxxxxxxxxx> Cc: David Hildenbrand <david@xxxxxxxxxx> Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx> Cc: linux-fsdevel@xxxxxxxxxxxxxxx Cc: linux-mm@xxxxxxxxx Link: https://lore.kernel.org/lkml/202211171439.CDE720EAD@keescook/ Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
Thanks for looking into this! Reviewed-by: David Hildenbrand <david@xxxxxxxxxx> -- Thanks, David / dhildenb
