mips: copy_from_user() must zero the destination on access_ok() failure (e69d7005) · Commits · e / devices / android_kernel_teracube_emerald

arch/mips/include/asm/uaccess.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -14,6 +14,7 @@
		#include <linux/kernel.h>
		#include <linux/errno.h>
		#include <linux/thread_info.h>
		#include <linux/string.h>
		#include <asm/asm-eva.h>

		/*
		@@ -1170,6 +1171,8 @@ extern size_t __copy_in_user_eva(void __to, const void __from, size_t __n);
		__cu_len = __invoke_copy_from_user(__cu_to, \
		__cu_from, \
		__cu_len); \
		} else { \
		memset(__cu_to, 0, __cu_len); \
		} \
		} \
		__cu_len; \