Merge "ASoC: msm: qdsp6v2: extend validation of virtual address" (1fda242d) · Commits · e / devices / android_kernel_sony_msm8998

drivers/misc/qcom/qdsp6v2/audio_utils_aio.c

+5 −2

Original line number	Diff line number	Diff line
		/* Copyright (C) 2008 Google, Inc.
		* Copyright (C) 2008 HTC Corporation
		* Copyright (c) 2009-2016, The Linux Foundation. All rights reserved.
		* Copyright (c) 2009-2017, The Linux Foundation. All rights reserved.
		*
		* This software is licensed under the terms of the GNU General Public
		* License version 2, as published by the Free Software Foundation, and
		@@ -119,7 +119,10 @@ static int audio_aio_ion_lookup_vaddr(struct q6audio_aio audio, void addr,
		list_for_each_entry(region_elt, &audio->ion_region_queue, list) {
		if (addr >= region_elt->vaddr &&
		addr < region_elt->vaddr + region_elt->len &&
		addr + len <= region_elt->vaddr + region_elt->len) {
		addr + len <= region_elt->vaddr + region_elt->len &&
		addr + len > addr) {
		/* to avoid integer addition overflow */

		/* offset since we could pass vaddr inside a registerd
		* ion buffer
		*/