On Tue, Jun 26, 2018 at 1:21 PM, Joe Perches <joe@xxxxxxxxxxx> wrote: > On Tue, 2018-06-26 at 10:40 -0700, Kees Cook wrote: >> This is the patch I've got prepared now that fixes for all VLAs have been >> sent to maintainers (some are still under review/adjustment, but there >> aren't any unexplored cases left). My intention would be to have this land >> at the end of the next merge window after all the pending VLA patches >> have landed. I just wanted to get any feedback here, since it touches >> a couple areas in the process and I didn't want anyone to be surprised. :) > [] >> diff --git a/Makefile b/Makefile > [] >> @@ -778,6 +778,9 @@ NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) >> # warn about C99 declaration after statement >> KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) >> >> +# VLAs should not be used anywhere in the kernel >> +KBUILD_CFLAGS += $(call cc-option,-Wvla) > > I'd probably spell out what a VLA is here. > # VLAs (Variable Length Arrays) should not be used anywhere in the kernel > > Beyond that, seems sensible, thanks. Ah yes, good idea. I've made that change locally now. Thanks! -Kees -- Kees Cook Pixel Security -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
