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https://github.com/Divested-Mobile/DivestOS-Build.git
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45 lines
2.0 KiB
Diff
45 lines
2.0 KiB
Diff
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From 41c47c76d3672de1a091b53878e1abad583b413d Mon Sep 17 00:00:00 2001
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From: Srinivas Girigowda <sgirigow@codeaurora.org>
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Date: Thu, 25 May 2017 15:16:36 -0700
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Subject: [PATCH] qcacld-2.0: Trim extn capability to max supported in change
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station
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extn capabilities can be controlled by user, which can
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be sent greater than the max supported value. This results
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in stack overflow in change station command.
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Add check to validate extn capability param given by user
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and if it exceeds max supported value, set it to max supported
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value.
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CRs-Fixed: 2044820
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Change-Id: I531799dd06c41069e85ad969de6182363dbf9f05
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Bug: 36817798
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Signed-off-by: Srinivas Girigowda <sgirigow@codeaurora.org>
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---
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drivers/staging/qcacld-2.0/CORE/HDD/src/wlan_hdd_cfg80211.c | 9 ++++++++-
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1 file changed, 8 insertions(+), 1 deletion(-)
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diff --git a/drivers/staging/qcacld-2.0/CORE/HDD/src/wlan_hdd_cfg80211.c b/drivers/staging/qcacld-2.0/CORE/HDD/src/wlan_hdd_cfg80211.c
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index 3580d2b73494b..0fd39f568de4d 100644
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--- a/drivers/staging/qcacld-2.0/CORE/HDD/src/wlan_hdd_cfg80211.c
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+++ b/drivers/staging/qcacld-2.0/CORE/HDD/src/wlan_hdd_cfg80211.c
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@@ -14887,9 +14887,16 @@ static int __wlan_hdd_change_station(struct wiphy *wiphy,
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StaParams.supported_oper_classes_len =
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params->supported_oper_classes_len;
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+ if (params->ext_capab_len > sizeof(StaParams.extn_capability)) {
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+ VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_INFO,
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+ "received extn capabilities: %d, reset to max supported",
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+ params->ext_capab_len);
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+ params->ext_capab_len = sizeof(StaParams.extn_capability);
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+ }
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+
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if (0 != params->ext_capab_len)
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vos_mem_copy(StaParams.extn_capability, params->ext_capab,
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- sizeof(StaParams.extn_capability));
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+ params->ext_capab_len);
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if (NULL != params->ht_capa) {
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StaParams.htcap_present = 1;
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