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https://github.com/Divested-Mobile/DivestOS-Build.git
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40 lines
1.4 KiB
Diff
40 lines
1.4 KiB
Diff
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From 0e53a89bfe0dbb50e0dde9a6960d274386247cd9 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 23:17:10 +0530
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Subject: wlan:Check priviledge permission before processing SET_CHAR_GET_NONE
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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_CHAR_GET_NONE IOCTLs, making
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sure user task has right permission to process the command.
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Change-Id: I7b060bcdc84f7016e8d301e994437a535533a260
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CRs-Fixed: 930935
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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 668cd1d..610b61b 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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@@ -7216,6 +7216,12 @@ static int __iw_setchar_getnone(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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/* helper function to get iwreq_data with compat handling. */
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if (hdd_priv_get_data(&s_priv_data, wrqu)) {
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return -EINVAL;
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--
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cgit v1.1
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