SCTP: Clean up OOTB handling and fix infinite loop processing

While processing OOTB chunks as well as chunks with an invalid
length of 0, it was possible to SCTP to get wedged inside an
infinite loop because we didn't catch the condition correctly,
or didn't mark the packet for discard correctly.
This work is based on original findings and work by
Wei Yongjun <yjwei@cn.fujitsu.com>

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>

1 files changed, 8 insertions, 8 deletions

diff --git a/net/sctp/sm_statetable.c b/net/sctp/sm_statetable.c
index 70a91ece3c4..ddb0ba3974b 100644
--- a/net/sctp/sm_statetable.c
+++ b/net/sctp/sm_statetable.c
@@ -110,7 +110,7 @@ const sctp_sm_table_entry_t *sctp_sm_lookup_event(sctp_event_t event_type,
         /* SCTP_STATE_EMPTY */ \
         TYPE_SCTP_FUNC(sctp_sf_ootb), \
         /* SCTP_STATE_CLOSED */ \
-        TYPE_SCTP_FUNC(sctp_sf_tabort_8_4_8), \
+        TYPE_SCTP_FUNC(sctp_sf_ootb), \
         /* SCTP_STATE_COOKIE_WAIT */ \
         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
         /* SCTP_STATE_COOKIE_ECHOED */ \
@@ -173,7 +173,7 @@ const sctp_sm_table_entry_t *sctp_sm_lookup_event(sctp_event_t event_type,
         /*  SCTP_STATE_EMPTY */ \
         TYPE_SCTP_FUNC(sctp_sf_ootb), \
         /* SCTP_STATE_CLOSED */ \
-        TYPE_SCTP_FUNC(sctp_sf_tabort_8_4_8), \
+        TYPE_SCTP_FUNC(sctp_sf_ootb), \
         /* SCTP_STATE_COOKIE_WAIT */ \
         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
         /* SCTP_STATE_COOKIE_ECHOED */ \
@@ -194,7 +194,7 @@ const sctp_sm_table_entry_t *sctp_sm_lookup_event(sctp_event_t event_type,
         /*  SCTP_STATE_EMPTY */ \
         TYPE_SCTP_FUNC(sctp_sf_ootb), \
         /* SCTP_STATE_CLOSED */ \
-        TYPE_SCTP_FUNC(sctp_sf_tabort_8_4_8), \
+        TYPE_SCTP_FUNC(sctp_sf_ootb), \
         /* SCTP_STATE_COOKIE_WAIT */ \
         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
         /* SCTP_STATE_COOKIE_ECHOED */ \
@@ -216,7 +216,7 @@ const sctp_sm_table_entry_t *sctp_sm_lookup_event(sctp_event_t event_type,
         /*  SCTP_STATE_EMPTY */ \
         TYPE_SCTP_FUNC(sctp_sf_ootb), \
         /* SCTP_STATE_CLOSED */ \
-        TYPE_SCTP_FUNC(sctp_sf_tabort_8_4_8), \
+        TYPE_SCTP_FUNC(sctp_sf_ootb), \
         /* SCTP_STATE_COOKIE_WAIT */ \
         TYPE_SCTP_FUNC(sctp_sf_violation), \
         /* SCTP_STATE_COOKIE_ECHOED */ \
@@ -258,7 +258,7 @@ const sctp_sm_table_entry_t *sctp_sm_lookup_event(sctp_event_t event_type,
         /* SCTP_STATE_EMPTY */ \
         TYPE_SCTP_FUNC(sctp_sf_ootb), \
         /* SCTP_STATE_CLOSED */ \
-        TYPE_SCTP_FUNC(sctp_sf_tabort_8_4_8), \
+        TYPE_SCTP_FUNC(sctp_sf_ootb), \
         /* SCTP_STATE_COOKIE_WAIT */ \
         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
         /* SCTP_STATE_COOKIE_ECHOED */ \
@@ -300,7 +300,7 @@ const sctp_sm_table_entry_t *sctp_sm_lookup_event(sctp_event_t event_type,
         /* SCTP_STATE_EMPTY */ \
         TYPE_SCTP_FUNC(sctp_sf_ootb), \
         /* SCTP_STATE_CLOSED */ \
-        TYPE_SCTP_FUNC(sctp_sf_tabort_8_4_8), \
+        TYPE_SCTP_FUNC(sctp_sf_ootb), \
         /* SCTP_STATE_COOKIE_WAIT */ \
         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
         /* SCTP_STATE_COOKIE_ECHOED */ \
@@ -499,7 +499,7 @@ static const sctp_sm_table_entry_t addip_chunk_event_table[SCTP_NUM_ADDIP_CHUNK_
         /* SCTP_STATE_EMPTY */ \
         TYPE_SCTP_FUNC(sctp_sf_ootb), \
         /* SCTP_STATE_CLOSED */ \
-        TYPE_SCTP_FUNC(sctp_sf_tabort_8_4_8), \
+        TYPE_SCTP_FUNC(sctp_sf_ootb), \
         /* SCTP_STATE_COOKIE_WAIT */ \
         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
         /* SCTP_STATE_COOKIE_ECHOED */ \
@@ -528,7 +528,7 @@ chunk_event_table_unknown[SCTP_STATE_NUM_STATES] = {
         /* SCTP_STATE_EMPTY */
         TYPE_SCTP_FUNC(sctp_sf_ootb),
         /* SCTP_STATE_CLOSED */
-        TYPE_SCTP_FUNC(sctp_sf_tabort_8_4_8),
+        TYPE_SCTP_FUNC(sctp_sf_ootb),
         /* SCTP_STATE_COOKIE_WAIT */
         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
         /* SCTP_STATE_COOKIE_ECHOED */