diff --git a/net/core/iovec.c b/net/core/iovec.c
index 40a76ce19d9fddfb90d2b21f282135e4d1bef239..16ad45d4882b56a2c531a0a944bc31c690ff5a4b 100644
--- a/net/core/iovec.c
+++ b/net/core/iovec.c
@@ -112,9 +112,9 @@ int memcpy_toiovecend(const struct iovec *iov, unsigned char *kdata,
 			continue;
 		}
 		copy = min_t(unsigned int, iov->iov_len - offset, len);
-		offset = 0;
-		if (copy_to_user(iov->iov_base, kdata, copy))
+		if (copy_to_user(iov->iov_base + offset, kdata, copy))
 			return -EFAULT;
+		offset = 0;
 		kdata += copy;
 		len -= copy;
 	}