net: Truncate recvfrom and sendto length to INT_MAX.

Signed-off-by: Linus Torvalds <[email protected]> Signed-off-by: David S. Miller <[email protected]>
jbg · Oct 30, 2010 · 253eacc · 253eacc
1 parent d139ff0
commit 253eacc
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/net/socket.c b/net/socket.c
@@ -1652,6 +1652,8 @@ SYSCALL_DEFINE6(sendto, int, fd, void __user *, buff, size_t, len,
 	struct iovec iov;
 	int fput_needed;
 
+	if (len > INT_MAX)
+		len = INT_MAX;
 	sock = sockfd_lookup_light(fd, &err, &fput_needed);
 	if (!sock)
 		goto out;
@@ -1709,6 +1711,8 @@ SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, ubuf, size_t, size,
 	int err, err2;
 	int fput_needed;
 
+	if (size > INT_MAX)
+		size = INT_MAX;
 	sock = sockfd_lookup_light(fd, &err, &fput_needed);
 	if (!sock)
 		goto out;