1 files changed, 6 insertions, 2 deletions

diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index c377e4e8f653..5de4729fe993 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -2848,10 +2848,11 @@ struct sctp_chunk *sctp_process_asconf(struct sctp_association *asoc,
 
         __be16  err_code;
         int     length = 0;
-        int     chunk_len = asconf->skb->len;
+        int     chunk_len;
         __u32   serial;
         int     all_param_pass = 1;
 
+        chunk_len = ntohs(asconf->chunk_hdr->length) - sizeof(sctp_chunkhdr_t);
         hdr = (sctp_addiphdr_t *)asconf->skb->data;
         serial = ntohl(hdr->serial);
 
@@ -2990,7 +2991,7 @@ static __be16 sctp_get_asconf_response(struct sctp_chunk *asconf_ack,
         sctp_addip_param_t      *asconf_ack_param;
         sctp_errhdr_t           *err_param;
         int                     length;
-        int                     asconf_ack_len = asconf_ack->skb->len;
+        int                     asconf_ack_len;
         __be16                  err_code;
 
         if (no_err)
@@ -2998,6 +2999,9 @@ static __be16 sctp_get_asconf_response(struct sctp_chunk *asconf_ack,
         else
                 err_code = SCTP_ERROR_REQ_REFUSED;
 
+        asconf_ack_len = ntohs(asconf_ack->chunk_hdr->length) -
+                             sizeof(sctp_chunkhdr_t);
+
         /* Skip the addiphdr from the asconf_ack chunk and store a pointer to
          * the first asconf_ack parameter.
          */