https://git.reactos.org/?p=reactos.git;a=commitdiff;h=0b713d4fa0781ecce03673ce9b3eb64d7a683382
commit 0b713d4fa0781ecce03673ce9b3eb64d7a683382 Author: Pierre Schweitzer <[email protected]> AuthorDate: Fri Oct 5 10:49:11 2018 +0200 Commit: Pierre Schweitzer <[email protected]> CommitDate: Fri Oct 5 10:49:59 2018 +0200 [NTOSKRNL] On open, verify and validate the hint device object if any --- ntoskrnl/io/iomgr/file.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/ntoskrnl/io/iomgr/file.c b/ntoskrnl/io/iomgr/file.c index c14e61806b..d8bb852606 100644 --- a/ntoskrnl/io/iomgr/file.c +++ b/ntoskrnl/io/iomgr/file.c @@ -673,10 +673,16 @@ IopParseDevice(IN PVOID ParseObject, } } + /* If we have a top level device hint, verify it */ if (OpenPacket->InternalFlags & IOP_USE_TOP_LEVEL_DEVICE_HINT) { - // FIXME: Verify our device object is good to use - ASSERT(DirectOpen == FALSE); + Status = IopCheckTopDeviceHint(&DeviceObject, OpenPacket, DirectOpen); + if (!NT_SUCCESS(Status)) + { + IopDereferenceDeviceObject(OriginalDeviceObject, FALSE); + if (Vpb) IopDereferenceVpbAndFree(Vpb); + return Status; + } } /* If we traversed a mount point, reset the information */
