From 77da62969eb0b5efe4ce4a0c9ce67c45b9e32638 Mon Sep 17 00:00:00 2001
From: Kleis Auke Wolthuizen <github@kleisauke.nl>
Date: Tue, 19 Jul 2022 21:33:13 +0200
Subject: [PATCH] [WasmFS] mmap: avoid setting *allocated too early (#17317)

Setting `*allocated` here is too early, as read errors
may occur (causing the pointer to be `free()`'d).
---
 system/lib/wasmfs/syscalls.cpp | 1 -
 1 file changed, 1 deletion(-)

diff --git a/system/lib/wasmfs/syscalls.cpp b/system/lib/wasmfs/syscalls.cpp
index 6271c104a2f5b..7b6817f22a024 100644
--- a/system/lib/wasmfs/syscalls.cpp
+++ b/system/lib/wasmfs/syscalls.cpp
@@ -1529,7 +1529,6 @@ intptr_t _mmap_js(
   if (!ptr) {
     return -ENOMEM;
   }
-  *allocated = true;
 
   auto written = file->locked().read(ptr, length, offset);
   if (written < 0) {