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https://github.com/Divested-Mobile/DivestOS-Build.git
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33 lines
1.3 KiB
Diff
33 lines
1.3 KiB
Diff
From 0ffca4f7bca3a8157d8dbaddbcea292c267fb5aa Mon Sep 17 00:00:00 2001
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From: Mahesh A Saptasagar <c_msapta@qti.qualcomm.com>
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Date: Tue, 27 Oct 2015 15:40:18 +0530
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Subject: wlan: Address buffer overflow due to invalid length
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Check for valid length before copying the packet filter data from
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userspace buffer to kernel space buffer to avoid buffer overflow
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issue.
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Change-Id: I9548727543b903b5eaafa25c6184615d511ca99d
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CRs-Fixed: 930533
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---
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CORE/HDD/src/wlan_hdd_wext.c | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/CORE/HDD/src/wlan_hdd_wext.c b/CORE/HDD/src/wlan_hdd_wext.c
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index c38563d..79dde24 100644
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--- a/CORE/HDD/src/wlan_hdd_wext.c
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+++ b/CORE/HDD/src/wlan_hdd_wext.c
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@@ -8401,6 +8401,9 @@ int wlan_hdd_set_filter(hdd_context_t *pHddCtx, tpPacketFilterCfg pRequest,
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hddLog(VOS_TRACE_LEVEL_INFO, "Data Offset %d Data Len %d",
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pRequest->paramsData[i].dataOffset, pRequest->paramsData[i].dataLength);
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+ if ((sizeof(packetFilterSetReq.paramsData[i].compareData)) <
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+ (pRequest->paramsData[i].dataLength))
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+ return -EINVAL;
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memcpy(&packetFilterSetReq.paramsData[i].compareData,
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pRequest->paramsData[i].compareData, pRequest->paramsData[i].dataLength);
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--
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cgit v1.1
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