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42 lines
1.6 KiB
Diff
42 lines
1.6 KiB
Diff
From 2882941530cbf804e280f235f7f8d76179a423fe 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 21:03:01 -0700
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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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CRs-Fixed: 930935
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Git-commit: 0e53a89bfe0dbb50e0dde9a6960d274386247cd9
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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 0b1ee24..88d75c1 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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@@ -6200,6 +6200,12 @@ static int iw_setchar_getnone(struct net_device *dev, struct iw_request_info *in
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return -EBUSY;
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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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+
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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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