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41 lines
1.7 KiB
Diff
41 lines
1.7 KiB
Diff
From 967f88782e93809cfb27a60b82a3a069d2a52fc4 Mon Sep 17 00:00:00 2001
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From: Amarnath Hullur Subramanyam <amarnath@codeaurora.org>
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Date: Wed, 28 Oct 2015 21:12:55 -0700
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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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CRs-Fixed: 930954
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Git-commit: 9eeafd788f53cc37c169b299f91ca9c558b228f9
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Bug: 25344453
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Signed-off-by: Amarnath Hullur Subramanyam <amarnath@codeaurora.org>
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---
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drivers/staging/qcacld-2.0/CORE/HDD/src/wlan_hdd_wext.c | 6 ++++++
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1 file changed, 6 insertions(+)
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diff --git a/drivers/staging/qcacld-2.0/CORE/HDD/src/wlan_hdd_wext.c b/drivers/staging/qcacld-2.0/CORE/HDD/src/wlan_hdd_wext.c
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index 841ed4c..fc8c917 100644
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--- a/drivers/staging/qcacld-2.0/CORE/HDD/src/wlan_hdd_wext.c
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+++ b/drivers/staging/qcacld-2.0/CORE/HDD/src/wlan_hdd_wext.c
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@@ -8143,6 +8143,12 @@ static int iw_clear_dynamic_mcbc_filter(struct net_device *dev,
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tpSirWlanSetRxpFilters wlanRxpFilterParam;
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hddLog(VOS_TRACE_LEVEL_INFO_HIGH, "%s: ", __func__);
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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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+
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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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