From 261d58c77fc5547c0aa7fdfeb58421ba7e0e6e1c Mon Sep 17 00:00:00 2001
From: hyc <hyc@symas.com>
Date: Sun, 24 Jul 2022 16:31:36 +0100
Subject: [PATCH] Fix missing failure check in allocMemoryPages() (#250)

---
 src/virtual_memory.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/virtual_memory.c b/src/virtual_memory.c
index 4f63df8..0fdc553 100644
--- a/src/virtual_memory.c
+++ b/src/virtual_memory.c
@@ -144,6 +144,8 @@ void* allocMemoryPages(size_t bytes) {
 		#define PEXTRA	0
 	#endif
 	mem = mmap(NULL, bytes, PAGE_READWRITE | RESERVED_FLAGS | PEXTRA, MAP_ANONYMOUS | MAP_PRIVATE | MEXTRA, -1, 0);
+	if (mem == MAP_FAILED)
+		mem = NULL;
 #if defined(USE_PTHREAD_JIT_WP) && defined(MAC_OS_VERSION_11_0) \
 	&& MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_VERSION_11_0
 	if (__builtin_available(macOS 11.0, *)) {