diff options
Diffstat (limited to 'net/sctp')
| -rw-r--r-- | net/sctp/sm_statefuns.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c index 385f1757158..5e7fb0f54b8 100644 --- a/net/sctp/sm_statefuns.c +++ b/net/sctp/sm_statefuns.c @@ -2965,6 +2965,7 @@ sctp_disposition_t sctp_sf_tabort_8_4_8(const struct sctp_endpoint *ep, SCTP_INC_STATS(SCTP_MIB_OUTCTRLCHUNKS); + sctp_sf_pdiscard(ep, asoc, type, arg, commands); return SCTP_DISPOSITION_CONSUME; } @@ -3148,11 +3149,9 @@ sctp_disposition_t sctp_sf_ootb(const struct sctp_endpoint *ep, } while (ch_end < skb_tail_pointer(skb)); if (ootb_shut_ack) - sctp_sf_shut_8_4_5(ep, asoc, type, arg, commands); + return sctp_sf_shut_8_4_5(ep, asoc, type, arg, commands); else - sctp_sf_tabort_8_4_8(ep, asoc, type, arg, commands); - - return sctp_sf_pdiscard(ep, asoc, type, arg, commands); + return sctp_sf_tabort_8_4_8(ep, asoc, type, arg, commands); } /* @@ -3218,7 +3217,11 @@ static sctp_disposition_t sctp_sf_shut_8_4_5(const struct sctp_endpoint *ep, if (!sctp_chunk_length_valid(chunk, sizeof(sctp_chunkhdr_t))) return sctp_sf_pdiscard(ep, asoc, type, arg, commands); - return SCTP_DISPOSITION_CONSUME; + /* We need to discard the rest of the packet to prevent + * potential bomming attacks from additional bundled chunks. + * This is documented in SCTP Threats ID. + */ + return sctp_sf_pdiscard(ep, asoc, type, arg, commands); } return SCTP_DISPOSITION_NOMEM; |