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41 lines
1.5 KiB
Diff
41 lines
1.5 KiB
Diff
From e2addf5aa2c7dfc537c2b80d8cc1cb5640346535 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 21:07:47 -0700
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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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CRs-Fixed: 930952
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Git-commit: 6642bccf3ed8cba176dee7d4bbc21fc4580efb7b
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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 09d7288..1cbdf32 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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@@ -9417,6 +9417,12 @@ static int iw_set_band_config(struct net_device *dev,
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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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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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