1 files changed, 3 insertions, 1 deletions

diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index f98650cc48d8..43460a1cb6d0 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -4512,7 +4512,9 @@ static int sctp_getsockopt_local_addrs_old(struct sock *sk, int len,
         if (copy_from_user(&getaddrs, optval, len))
                 return -EFAULT;
 
-        if (getaddrs.addr_num <= 0) return -EINVAL;
+        if (getaddrs.addr_num <= 0 ||
+            getaddrs.addr_num >= (INT_MAX / sizeof(union sctp_addr)))
+                return -EINVAL;
         /*
          *  For UDP-style sockets, id specifies the association to query.
          *  If the id field is set to the value '0' then the locally bound