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39 lines
1.4 KiB
Diff
39 lines
1.4 KiB
Diff
From 6665a9697b404acf4d2e7d52d9c2b19512c9b239 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 23:56:37 +0530
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Subject: wlan:Check priviledge permission for SET_POWER_PARAMS 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 SET_POWER_PARAMS IOCTL, making
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sure user task has right permission to process the command.
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Change-Id: Ie930c9723ecbd54ae0e6bf6506815301e0387932
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CRs-Fixed: 930953
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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 3240c90..b7448c3 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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@@ -10846,6 +10846,12 @@ static int __iw_set_power_params_priv(struct net_device *dev,
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char *ptr;
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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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/* ODD number is used for set, copy data using copy_from_user */
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ptr = mem_alloc_copy_from_user_helper(wrqu->data.pointer,
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wrqu->data.length);
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--
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cgit v1.1
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