From a5f12908df6245ab254d4152399058e385137516 Mon Sep 17 00:00:00 2001
From: Mark Jansen <mark.jansen@reactos.org>
Date: Thu, 5 Apr 2018 22:06:31 +0200
Subject: [PATCH] [NTOSKRNL] Fix IopValidateID using uninitialized var, reset
 SeparatorsCount in the MultiSz case.

---
 ntoskrnl/io/pnpmgr/pnpmgr.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ntoskrnl/io/pnpmgr/pnpmgr.c b/ntoskrnl/io/pnpmgr/pnpmgr.c
index dd75f7f947d..da3cf8c0658 100644
--- a/ntoskrnl/io/pnpmgr/pnpmgr.c
+++ b/ntoskrnl/io/pnpmgr/pnpmgr.c
@@ -1793,6 +1793,7 @@ IopValidateID(
 
         case BusQueryHardwareIDs:
         case BusQueryCompatibleIDs:
+            MaxSeparators = MAX_SEPARATORS_DEVICEID;
             IsMultiSz = TRUE;
             break;
 
@@ -1823,6 +1824,7 @@ IopValidateID(
 
             StringEnd = PtrChar + MAX_DEVICE_ID_LEN + 1;
             PtrPrevChar = PtrChar;
+            SeparatorsCount = 0;
         }
         else if (Char < ' ' || Char > 0x7F || Char == ',')
         {