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85 lines
2.9 KiB
Diff
85 lines
2.9 KiB
Diff
From 0440277461826c6f2122ef3ffca51358cc823fd2 Mon Sep 17 00:00:00 2001
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From: Ashish Kumar Goswami <agoswa@codeaurora.org>
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Date: Fri, 23 Dec 2016 13:20:45 +0530
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Subject: qcacld-2.0: Avoid integer overflow in wma_enable_arp_ns_offload
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In the function wma_enable_arp_ns_offload(), the len variable is
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defined as signed 32 bit, whereas wmi_buf_alloc() takes unsigned
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16 bit as input also there is no limit on input of
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num_ns_offload_count.
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Fix is to define the len variable in wma_enable_arp_ns_offload()
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as unsigned 32 bit. The length input for wmi_buf_alloc() is also
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extended and re-defined as unsigned 32 bit. Add limit check before
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using num_ns_offload_count.
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Change-Id: I5063df9551074e964eef67abeb8afcf104e50808
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CRs-Fixed: 1103099
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---
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CORE/SERVICES/COMMON/wmi_unified_api.h | 4 ++--
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CORE/SERVICES/WMA/wma.c | 7 ++++++-
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CORE/SERVICES/WMI/wmi_unified.c | 2 +-
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3 files changed, 9 insertions(+), 4 deletions(-)
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diff --git a/CORE/SERVICES/COMMON/wmi_unified_api.h b/CORE/SERVICES/COMMON/wmi_unified_api.h
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index cd9f923..2912d47 100644
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--- a/CORE/SERVICES/COMMON/wmi_unified_api.h
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+++ b/CORE/SERVICES/COMMON/wmi_unified_api.h
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@@ -1,5 +1,5 @@
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/*
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- * Copyright (c) 2013-2014 The Linux Foundation. All rights reserved.
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+ * Copyright (c) 2013-2017 The Linux Foundation. All rights reserved.
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*
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* Previously licensed under the ISC license by Qualcomm Atheros, Inc.
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*
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@@ -69,7 +69,7 @@ wmi_unified_remove_work(struct wmi_unified* wmi_handle);
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* @return wmi_buf_t.
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*/
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wmi_buf_t
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-wmi_buf_alloc(wmi_unified_t wmi_handle, u_int16_t len);
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+wmi_buf_alloc(wmi_unified_t wmi_handle, uint32_t len);
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/**
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diff --git a/CORE/SERVICES/WMA/wma.c b/CORE/SERVICES/WMA/wma.c
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index 6810329..243c2cc 100644
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--- a/CORE/SERVICES/WMA/wma.c
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+++ b/CORE/SERVICES/WMA/wma.c
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@@ -26726,7 +26726,7 @@ static VOS_STATUS wma_enable_arp_ns_offload(tp_wma_handle wma,
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WMI_SET_ARP_NS_OFFLOAD_CMD_fixed_param *cmd;
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A_UINT8* buf_ptr;
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wmi_buf_t buf;
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- int32_t len;
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+ uint32_t len;
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VOS_STATUS status = VOS_STATUS_SUCCESS;
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u_int8_t vdev_id;
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tpSirHostOffloadReq ns_offload_req;
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@@ -26760,6 +26760,11 @@ static VOS_STATUS wma_enable_arp_ns_offload(tp_wma_handle wma,
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count = hostoffloadreq->num_ns_offload_count;
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}
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+ if (count >= SIR_MAC_NUM_TARGET_IPV6_NS_OFFLOAD_NA) {
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+ status = VOS_STATUS_E_INVAL;
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+ goto err_vdev;
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+ }
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+
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len = sizeof(WMI_SET_ARP_NS_OFFLOAD_CMD_fixed_param) +
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WMI_TLV_HDR_SIZE + /* Add size for array of NS tuples */
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WMI_MAX_NS_OFFLOADS*sizeof(WMI_NS_OFFLOAD_TUPLE) +
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diff --git a/CORE/SERVICES/WMI/wmi_unified.c b/CORE/SERVICES/WMI/wmi_unified.c
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index b0ace6c..150bd3e 100644
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--- a/CORE/SERVICES/WMI/wmi_unified.c
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+++ b/CORE/SERVICES/WMI/wmi_unified.c
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@@ -131,7 +131,7 @@ uint16_t wmi_get_max_msg_len(wmi_unified_t wmi_handle)
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}
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wmi_buf_t
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-wmi_buf_alloc(wmi_unified_t wmi_handle, u_int16_t len)
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+wmi_buf_alloc(wmi_unified_t wmi_handle, uint32_t len)
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{
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wmi_buf_t wmi_buf;
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--
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cgit v1.1
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