From 1984cb3b3d749f2d99aae05602d5534dd33f8e88 Mon Sep 17 00:00:00 2001
From: Thibaut Sautereau <thibaut.sautereau@ssi.gouv.fr>
Date: Wed, 10 Feb 2021 09:55:09 +0100
Subject: [PATCH] malloc_object_size: avoid fault for invalid region

It's the region pointer that can be NULL here, and p was checked at the
beginning of the function.
---
 h_malloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/h_malloc.c b/h_malloc.c
index c661b8b..52a227d 100644
--- a/h_malloc.c
+++ b/h_malloc.c
@@ -1690,7 +1690,7 @@ EXPORT size_t h_malloc_object_size(void *p) {
     struct region_allocator *ra = ro.region_allocator;
     mutex_lock(&ra->lock);
     struct region_metadata *region = regions_find(p);
-    size_t size = p == NULL ? SIZE_MAX : region->size;
+    size_t size = region == NULL ? SIZE_MAX : region->size;
     mutex_unlock(&ra->lock);
 
     thread_seal_metadata();