From d31642c712a2b35ff024707a32c2783f15d16215 Mon Sep 17 00:00:00 2001
From: Tuur Martens <tuurmartens4@gmail.com>
Date: Fri, 3 Jun 2022 17:46:28 +0200
Subject: [PATCH] [NTOS:MM] Fix memory leak in NtAllocateVirtualMemory

When an allocated VAD's insertion fails, the VAD is not freed. This commit attempts to fix this behaviour.
---
 ntoskrnl/mm/ARM3/virtual.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ntoskrnl/mm/ARM3/virtual.c b/ntoskrnl/mm/ARM3/virtual.c
index c5c5a5283b0..4f5cd1b016b 100644
--- a/ntoskrnl/mm/ARM3/virtual.c
+++ b/ntoskrnl/mm/ARM3/virtual.c
@@ -4787,6 +4787,7 @@ NtAllocateVirtualMemory(IN HANDLE ProcessHandle,
         if (!NT_SUCCESS(Status))
         {
             DPRINT1("Failed to insert the VAD!\n");
+            ExFreePoolWithTag(Vad, 'SdaV');
             goto FailPathNoLock;
         }