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sys: FspPropagateTopFlags: only touch TopLevelIrp if it looks like a kernel mode address

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This commit is contained in:
Bill Zissimopoulos 2018-09-27 09:31:09 -07:00
parent f32c914ee8
commit c9f1c1c60d
1 changed files with 1 additions and 1 deletions
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2
src/sys/callbacks.c
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@ -298,7 +298,7 @@ VOID FspPropagateTopFlags(PIRP Irp, PIRP TopLevelIrp)
FspIrpSetTopFlags(Irp, FspFileNodeAcquireFull); FspIrpSetTopFlags(Irp, FspFileNodeAcquireFull);
} }
else if (IO_TYPE_IRP == TopLevelIrp->Type) else if ((PIRP)MM_SYSTEM_RANGE_START <= TopLevelIrp && IO_TYPE_IRP == TopLevelIrp->Type)
{ {
PFILE_OBJECT FileObject = IoGetCurrentIrpStackLocation(Irp)->FileObject; PFILE_OBJECT FileObject = IoGetCurrentIrpStackLocation(Irp)->FileObject;
PFILE_OBJECT TopLevelFileObject = IoGetCurrentIrpStackLocation(TopLevelIrp)->FileObject; PFILE_OBJECT TopLevelFileObject = IoGetCurrentIrpStackLocation(TopLevelIrp)->FileObject;