1 files changed, 2 insertions, 2 deletions

diff --git a/net/sctp/chunk.c b/net/sctp/chunk.c
index bd0bdd0ba8f1..7bd5ed4a8657 100644
--- a/net/sctp/chunk.c
+++ b/net/sctp/chunk.c
@@ -195,9 +195,9 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
         /* This is the biggest possible DATA chunk that can fit into
          * the packet
          */
-        max_data = asoc->pathmtu -
+        max_data = (asoc->pathmtu -
                 sctp_sk(asoc->base.sk)->pf->af->net_header_len -
-                sizeof(struct sctphdr) - sizeof(struct sctp_data_chunk);
+                sizeof(struct sctphdr) - sizeof(struct sctp_data_chunk)) & ~3;
 
         max = asoc->frag_point;
         /* If the the peer requested that we authenticate DATA chunks