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https://github.com/Divested-Mobile/DivestOS-Build.git
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39 lines
1.3 KiB
Diff
39 lines
1.3 KiB
Diff
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From 6642bccf3ed8cba176dee7d4bbc21fc4580efb7b 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 23:51:02 +0530
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Subject: wlan:Check priviledge permission for SET_BAND_CONFIG 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_BAND_CONFIG IOCTL, making
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sure user task has right permission to process the command.
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Change-Id: Ie8a36bfa07a7b21601364b27b3c4bc888a6a5b4e
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CRs-Fixed: 930952
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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 27c1813..3240c90 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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@@ -10816,6 +10816,12 @@ static int __iw_set_band_config(struct net_device *dev,
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if (0 != ret)
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return ret;
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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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return hdd_setBand(dev, value[0]);
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}
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--
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cgit v1.1
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