llist: clear the list pointer when a node is removed

Closes #14738

diff --git a/lib/llist.c b/lib/llist.c
index 1a91f02717b076c39d96e4a6a2e4080440044083..f0e5fe08bbd0a7d253db66dd51106befc0e14a45 100644 (file)
--- a/lib/llist.c
+++ b/lib/llist.c
@@ -170,6 +170,7 @@ Curl_node_uremove(struct Curl_llist_node *e, void *user)
 
   ptr = e->_ptr;
 
+  e->_list = NULL;
   e->_ptr  = NULL;
   e->_prev = NULL;
   e->_next = NULL;