flowtop: Use RCU flow deletion from process entry

Use cds_list_del_rcu for safer deletion flow from the process flow
list to prevent possible use-after-free by UI thread when it is
refreshing the processes.

It may fix the #183 issue.

Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

1 files changed, 1 insertions, 1 deletions

diff --git a/flowtop.c b/flowtop.c
index 0a3c514..8b69d65 100644
--- a/flowtop.c
+++ b/flowtop.c
@@ -477,7 +477,7 @@ static int flow_list_del_entry(struct flow_list *fl, const struct nf_conntrack *
 	n = flow_list_find_id(fl, nfct_get_attr_u32(ct, ATTR_ID));
 	if (n) {
 		if (n->proc) {
-			cds_list_del(&n->proc_head);
+			cds_list_del_rcu(&n->proc_head);
 			n->proc->flows_count--;
 		}