From: Felix Fietkau <nbd@openwrt.org>
Date: Fri, 21 Oct 2011 13:09:11 +0000 (+0200)
Subject: ucimap: fix use-after-free on cleanup (patch by Stanislav Fomichev)
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=2b86a11e49aa14d24c1e85ff5a7bd5ce58565df6;p=oweals%2Fuci.git

ucimap: fix use-after-free on cleanup (patch by Stanislav Fomichev)
---

diff --git a/ucimap.c b/ucimap.c
index 140c684..16ce56a 100644
--- a/ucimap.c
+++ b/ucimap.c
@@ -162,9 +162,10 @@ ucimap_free_section(struct uci_map *map, struct ucimap_section_data *sd)
 void
 ucimap_cleanup(struct uci_map *map)
 {
-	struct ucimap_section_data *sd;
+	struct ucimap_section_data *sd, *sd_next;
 
-	for (sd = map->sdata; sd; sd = sd->next) {
+	for (sd = map->sdata; sd; sd = sd_next) {
+		sd_next = sd->next;
 		ucimap_free_section(map, sd);
 	}
 }