Commit 6fcd7e70 authored by Kees Cook's avatar Kees Cook Committed by Greg Kroah-Hartman
Browse files

devres: Use kmalloc_size_roundup() to match ksize() usage 



Round up allocations with kmalloc_size_roundup() so that devres's use
of ksize() is always accurate and no special handling of the memory is
needed by KASAN, UBSAN_BOUNDS, nor FORTIFY_SOURCE.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Signed-off-by: default avatarKees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20221018090406.never.856-kees@kernel.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 9e6002ad

drivers/base/devres.c

+3 −0
Original line number Diff line number Diff line
@@ -101,6 +101,9 @@ static bool check_dr_size(size_t size, size_t *tot_size) 
					size, tot_size)))

		return false;



	/* Actually allocate the full kmalloc bucket size. */

	*tot_size = kmalloc_size_roundup(*tot_size);



	return true;

}