[reactos] 01/01: [FLTMGR] Safely query object name in FltpGetObjectName. CID 1420811

[Thomas Faber]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=9215413a684c0592b8e3c…

commit 9215413a684c0592b8e3ccfc97bda99fc5f79e2c
Author:     Thomas Faber <thomas.faber(a)reactos.org>
AuthorDate: Sat Nov 30 12:04:14 2019 +0100
Commit:     Thomas Faber <thomas.faber(a)reactos.org>
CommitDate: Sat Jan 18 13:19:22 2020 +0100

    [FLTMGR] Safely query object name in FltpGetObjectName. CID 1420811
---
 drivers/filters/fltmgr/Object.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/filters/fltmgr/Object.c b/drivers/filters/fltmgr/Object.c
index 8173f6376a0..db32f48e578 100644
--- a/drivers/filters/fltmgr/Object.c
+++ b/drivers/filters/fltmgr/Object.c
@@ -263,8 +263,8 @@ NTSTATUS
 FltpGetObjectName(_In_ PVOID Object,
                   _Inout_ PUNICODE_STRING ObjectName)
 {
-    POBJECT_NAME_INFORMATION ObjectNameInfo = NULL;
     OBJECT_NAME_INFORMATION LocalNameInfo;
+    POBJECT_NAME_INFORMATION ObjectNameInfo = &LocalNameInfo;
     ULONG ReturnLength;
     NTSTATUS Status;
 
@@ -310,7 +310,7 @@ FltpGetObjectName(_In_ PVOID Object,
         }
     }
 
-    if (ObjectNameInfo)
+    if (ObjectNameInfo != &LocalNameInfo)
     {
         ExFreePoolWithTag(ObjectNameInfo, FM_TAG_UNICODE_STRING);
     }