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https://github.com/Divested-Mobile/DivestOS-Build.git
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39 lines
1.4 KiB
Diff
39 lines
1.4 KiB
Diff
From 9eeafd788f53cc37c169b299f91ca9c558b228f9 Mon Sep 17 00:00:00 2001
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From: Mukul Sharma <mukul@qti.qualcomm.com>
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Date: Tue, 27 Oct 2015 23:54:05 +0530
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Subject: wlan:Check priviledge permission for CLEAR_MCBC_FILTER IOCTL
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Kernel assumes all SET IOCTL commands are assigned with even
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numbers. But in our WLAN driver, some SET IOCTLS are assigned with
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odd numbers. This leads kernel fail to check, for some SET IOCTLs,
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whether user has the right permission to do SET operation.
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Hence, in driver, before processing CLEAR_MCBC_FILTER IOCTL, making
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sure user task has right permission to process the command.
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Change-Id: I9b50fcc0eeb1c1eb3493eab573f4421b52f0ea9a
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CRs-Fixed: 930954
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---
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CORE/HDD/src/wlan_hdd_wext.c | 6 ++++++
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1 file changed, 6 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 b7448c3..c1ba718 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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@@ -9458,6 +9458,12 @@ static int __iw_clear_dynamic_mcbc_filter(struct net_device *dev,
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tpSirWlanSetRxpFilters wlanRxpFilterParam;
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ENTER();
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+
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+ if (!capable(CAP_NET_ADMIN)) {
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+ VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
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+ FL("permission check failed"));
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+ return -EPERM;
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+ }
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//Reset the filter to INI value as we have to clear the dynamic filter
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pHddCtx->configuredMcastBcastFilter = pHddCtx->cfg_ini->mcastBcastFilterSetting;
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--
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cgit v1.1
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