D18536.1789715028.diff
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D18536.1789715028.diff
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	Index: head/sys/dev/tws/tws_user.c
	===================================================================
	--- head/sys/dev/tws/tws_user.c
	+++ head/sys/dev/tws/tws_user.c
	@@ -92,9 +92,13 @@
	struct tws_request *req;
	struct tws_ioctl_no_data_buf ubuf = (struct tws_ioctl_no_data_buf )buf;
	int error;
	+ u_int32_t buffer_length;
	u_int16_t lun4;

	-
	+ buffer_length = roundup2(ubuf->driver_pkt.buffer_length, 512);
	+ if ( buffer_length > TWS_MAX_IO_SIZE ) {
	+ return(EINVAL);
	+ }
	if ( tws_get_state(sc) != TWS_ONLINE) {
	return(EBUSY);
	}
	@@ -118,7 +122,7 @@
	}
	} while(1);

	- req->length = (ubuf->driver_pkt.buffer_length + 511) & ~511;
	+ req->length = buffer_length;
	TWS_TRACE_DEBUG(sc, "datal,rid", req->length, req->request_id);
	if ( req->length ) {
	req->data = sc->ioctl_data_mem;