The existing __strnlen_user macro simply resolved to strnlen. However, the count returned by strnlen_user should include the NULL byte. This patch fixes the __strnlen_user macro to include the NULL byte in the count. Signed-off-by: Mark Salter <msalter@xxxxxxxxxx> --- include/asm-generic/uaccess.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/include/asm-generic/uaccess.h b/include/asm-generic/uaccess.h index ac68c99..1d0fdf8 100644 --- a/include/asm-generic/uaccess.h +++ b/include/asm-generic/uaccess.h @@ -289,7 +289,7 @@ strncpy_from_user(char *dst, const char __user *src, long count) * Return 0 on exception, a value greater than N if too long */ #ifndef __strnlen_user -#define __strnlen_user strnlen +#define __strnlen_user(s, n) (strnlen((s), (n)) + 1) #endif static inline long strnlen_user(const char __user *src, long n) -- 1.7.6 -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
