From 9403d28515c104ca04df390a1ae9fa6fd3ce0e42 Mon Sep 17 00:00:00 2001 From: Donald Sharp Date: Wed, 10 May 2017 20:00:07 -0400 Subject: [PATCH] pimd: Prevent NULL dereference Signed-off-by: Donald Sharp --- pimd/pim_msg.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/pimd/pim_msg.c b/pimd/pim_msg.c index 04f1f4846f..67faa39364 100644 --- a/pimd/pim_msg.c +++ b/pimd/pim_msg.c @@ -104,6 +104,9 @@ size_t pim_msg_get_jp_group_size(struct list *sources) struct pim_jp_sources *js; size_t size = 0; + if (!sources) + return 0; + size += sizeof(struct pim_encoded_group_ipv4); size += 4; // Joined sources (2) + Pruned Sources (2) -- 2.39.5