From a72fe2cb1237b8f698f0708b82afa2675b7f738b Mon Sep 17 00:00:00 2001
From: =?utf8?q?J=C3=A9r=C3=A9mie=20Astor?= <astor.jeremie@wanadoo.fr>
Date: Tue, 3 Mar 2020 16:47:18 +0100
Subject: [PATCH] :bomb: Fix vasprintf leak

---
 src/lib/gack.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/lib/gack.c b/src/lib/gack.c
index a72059ae..1f04a9f7 100644
--- a/src/lib/gack.c
+++ b/src/lib/gack.c
@@ -27,7 +27,11 @@ ANN2(2) static int gw_vasprintf(MemPool mp, char **str, const char *fmt, va_list
   char *ret = mp_malloc2(mp, base_len + size + 1);
   if(base)
     strcpy(ret, base);
-  DECL_BB(const int, final_len, = vsprintf(ret + base_len, fmt, args))
+  const int final_len = vsprintf(ret + base_len, fmt, args);
+  if(final_len < 0) {
+    mp_free2(mp, base_len + size + 1, ret);
+    return -1;
+  }
   if(base)
     mp_free2(mp, strlen(base), base);
   *str = ret;
-- 
2.43.0