From: Pierre Schweitzer <pierre@reactos.org>
Date: Thu, 3 Aug 2017 20:47:41 +0000 (+0000)
Subject: [RDBSS]
X-Git-Tag: backups/GSoC_2017/rapps@75905~4^2~205
X-Git-Url: https://git.reactos.org/?p=reactos.git;a=commitdiff_plain;h=eae32333ca095583c5dceb6420ca749d9eeda29a;hp=62806dc561f921f4cd25e07fad356cef93643a59

[RDBSS]
Don't attempt to dereference NULL-ptr if CCB isn't set.
Fixes crash in RxFsdCommonDispatch() under rare circumstances.

CORE-11327

svn path=/trunk/; revision=75474
---

diff --git a/reactos/sdk/lib/drivers/rdbsslib/rdbss.c b/reactos/sdk/lib/drivers/rdbsslib/rdbss.c
index 5a9a8324297..0f27fe91c09 100644
--- a/reactos/sdk/lib/drivers/rdbsslib/rdbss.c
+++ b/reactos/sdk/lib/drivers/rdbsslib/rdbss.c
@@ -5984,7 +5984,7 @@ RxFsdCommonDispatch(
                 Fobx = StackFileObject->FsContext2;
 
                 if (BooleanFlagOn(Fcb->FcbState, FCB_STATE_ORPHANED) ||
-                    BooleanFlagOn(Fobx->pSrvOpen->Flags, SRVOPEN_FLAG_ORPHANED))
+                    ((Fobx != NULL) && BooleanFlagOn(Fobx->pSrvOpen->Flags, SRVOPEN_FLAG_ORPHANED)))
                 {
                     if (Closing)
                     {