In order to annotate byte arrays in UAPI that are not C strings (i.e. they may not be NUL terminated), the "nonstring" attribute is needed. However, we can't expose this to userspace as it is compiler version specific. Signed-off-by: Kees Cook <kees@xxxxxxxxxx> --- Cc: Alexey Dobriyan <adobriyan@xxxxxxxxx> Cc: Sven Eckelmann <sven@xxxxxxxxxxxxx> Cc: Tadeusz Struk <tadeusz.struk@xxxxxxxxxx> Cc: Erick Archer <erick.archer@xxxxxxxxxxx> Cc: Dmitry Antipov <dmantipov@xxxxxxxxx> --- include/uapi/linux/stddef.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/uapi/linux/stddef.h b/include/uapi/linux/stddef.h index 58154117d9b0..0e7d289b7c2e 100644 --- a/include/uapi/linux/stddef.h +++ b/include/uapi/linux/stddef.h @@ -63,4 +63,10 @@ #define __counted_by_be(m) #endif +#ifdef __KERNEL__ +#define __kernel_nonstring __nonstring +#else +#define __kernel_nonstring +#endif + #endif /* _UAPI_LINUX_STDDEF_H */ -- 2.34.1
