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sys: dirctl: eliminate use of SystemBuffer to work around problems with Avast

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This commit is contained in:
Bill Zissimopoulos
2017-10-19 16:49:10 -07:00
parent 93af1be861
commit 07f15c236b
5 changed files with 169 additions and 353 deletions
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9
src/sys/wq.c
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@ -32,7 +32,7 @@ static VOID FspWqWorkRoutine(PVOID Context);
static inline
NTSTATUS FspWqPrepareIrpWorkItem(PIRP Irp)
{
NTSTATUS Result;
NTSTATUS Result = STATUS_SUCCESS;
PIO_STACK_LOCATION IrpSp = IoGetCurrentIrpStackLocation(Irp);
/* lock/buffer the user buffer */
@ -43,11 +43,12 @@ NTSTATUS FspWqPrepareIrpWorkItem(PIRP Irp)
Result = FspLockUserBuffer(Irp, IrpSp->Parameters.Read.Length, IoWriteAccess);
else
Result = FspLockUserBuffer(Irp, IrpSp->Parameters.Write.Length, IoReadAccess);
if (!NT_SUCCESS(Result))
return Result;
}
else
if (IRP_MJ_DIRECTORY_CONTROL == IrpSp->MajorFunction)
Result = FspLockUserBuffer(Irp, IrpSp->Parameters.QueryDirectory.Length, IoWriteAccess);
return STATUS_SUCCESS;
return Result;
}
NTSTATUS FspWqCreateAndPostIrpWorkItem(PIRP Irp,