bgpd: add a NULL check to prevent a crash in the rfapi code

The rfapiDeleteRemotePrefixesIt() function checks on several places if
'p' is NULL or not. Introduce an additional NULL check to prevent a
crash from happening.

Signed-off-by: Renato Westphal <renato@opensourcerouting.org>

diff --git a/bgpd/rfapi/rfapi_import.c b/bgpd/rfapi/rfapi_import.c
index ac3b6da23011472381e032e83278541e38c11d0f..1cfeb1ea7a09e4e06948af86426aa09ee0770b15 100644 (file)
--- a/bgpd/rfapi/rfapi_import.c
+++ b/bgpd/rfapi/rfapi_import.c
@@ -4470,7 +4470,7 @@ static void rfapiDeleteRemotePrefixesIt(
                        struct bgp_info *bi;
                        struct bgp_info *next;
 
-                       if (VNC_DEBUG(IMPORT_DEL_REMOTE)) {
+                       if (p && VNC_DEBUG(IMPORT_DEL_REMOTE)) {
                                char p1line[PREFIX_STRLEN];
                                char p2line[PREFIX_STRLEN];