From e26d4a4ddbdf5843eff51df2e491f085fa8fe280 Mon Sep 17 00:00:00 2001
From: vblanco20-1 <1417000+vblanco20-1@users.noreply.github.com>
Date: Tue, 26 Sep 2023 11:46:11 +0200
Subject: [PATCH] Fixing bug where allocating a new arena would not zero memory
 correctly

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

diff --git a/src/arena.c b/src/arena.c
index a04a04c8..51c5a4c9 100644
--- a/src/arena.c
+++ b/src/arena.c
@@ -179,7 +179,11 @@ static void* mi_arena_meta_zalloc(size_t size, mi_memid_t* memid, mi_stats_t* st
   if (p != NULL) return p;
 
   // or fall back to the OS
-  return _mi_os_alloc(size, memid, stats);
+  p = _mi_os_alloc(size,memid,stats);
+  if (p != NULL  && !memid->initially_zero) {
+	  _mi_memzero(p,size);
+  }
+  return p;
 }
 
 static void mi_arena_meta_free(void* p, mi_memid_t memid, size_t size, mi_stats_t* stats) {