diff --git a/drivers/filters/mountmgr/point.c b/drivers/filters/mountmgr/point.c index d63ec3a4592..77fc6fba95f 100644 --- a/drivers/filters/mountmgr/point.c +++ b/drivers/filters/mountmgr/point.c @@ -518,7 +518,7 @@ QueryPointsFromSymbolicLinkName(IN PDEVICE_EXTENSION DeviceExtension, } /* Get output buffer */ - Stack = IoGetNextIrpStackLocation(Irp); + Stack = IoGetCurrentIrpStackLocation(Irp); MountPoints = (PMOUNTMGR_MOUNT_POINTS)Irp->AssociatedIrp.SystemBuffer; /* Compute output length */ @@ -528,9 +528,12 @@ QueryPointsFromSymbolicLinkName(IN PDEVICE_EXTENSION DeviceExtension, /* Give length to allow reallocation */ MountPoints->Size = sizeof(MOUNTMGR_MOUNT_POINTS) + TotalLength; MountPoints->NumberOfMountPoints = 1; + Irp->IoStatus.Information = sizeof(MOUNTMGR_MOUNT_POINTS) + TotalLength; if (MountPoints->Size > Stack->Parameters.DeviceIoControl.OutputBufferLength) { + Irp->IoStatus.Information = sizeof(MOUNTMGR_MOUNT_POINTS); + return STATUS_BUFFER_OVERFLOW; }