net/core/iovec.c |   17 ++++++++---------
 1 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/net/core/iovec.c b/net/core/iovec.c
index e6b133b..b489fd6 100644
--- a/net/core/iovec.c
+++ b/net/core/iovec.c
@@ -38,7 +38,7 @@
 long verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr *address, int mode)
 {
 	int size, ct;
-	long err;
+	size_t err;
 
 	if (m->msg_namelen) {
 		if (mode == VERIFY_READ) {
@@ -60,14 +60,13 @@ long verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr *address,
 	err = 0;
 
 	for (ct = 0; ct < m->msg_iovlen; ct++) {
-		err += iov[ct].iov_len;
-		/*
-		 * Goal is not to verify user data, but to prevent returning
-		 * negative value, which is interpreted as errno.
-		 * Overflow is still possible, but it is harmless.
-		 */
-		if (err < 0)
-			return -EMSGSIZE;
+		size_t len = iov[ct].iov_len;
+
+		if (len > INT_MAX - err) {
+			len = INT_MAX - err;
+			iov[ct].iov_len = len;
+		}
+		err += len;
 	}
 
 	return err;