From 282914669483405a34000ed24b541201f8d29c4b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Yaroslav=20de=20la=20Pe=C3=B1a=20Smirnov?=
 <yps@yaroslavps.com>
Date: Wed, 10 Nov 2021 01:31:46 +0300
Subject: hashmap_remove: fix potential use-after-free

prev should be assigned before node is reassigned.
---
 src/hashmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/hashmap.c b/src/hashmap.c
index 2522907..2787435 100644
--- a/src/hashmap.c
+++ b/src/hashmap.c
@@ -208,8 +208,8 @@ hashmap_remove(struct hashmap *hm, const char *key)
             return old_value;
         }
 
-        node = node->next;
         prev = node;
+        node = node->next;
     }
 
     return NULL;
-- 
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