From 93863644b4547324309613361d70ad9dc91f8dfd Mon Sep 17 00:00:00 2001 From: SaidiReddy Yenuga Date: Tue, 14 Feb 2017 16:00:57 +0530 Subject: qcacld-2.0: Trim operation classes to max supported in change station Operation classes supported can be controlled by user, which can be sent greater than the max supported operations. This results in stack overflow in change station command. Add check to validate operations supported param given by user and if it exceeds max supported value, set it to max supported value. CRs-Fixed: 2002052 Change-Id: Idd3a35e38b091546a17d7ec6329f19429e5c289c --- CORE/HDD/src/wlan_hdd_cfg80211.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/CORE/HDD/src/wlan_hdd_cfg80211.c b/CORE/HDD/src/wlan_hdd_cfg80211.c index 8fc43a7..f82f258 100644 --- a/CORE/HDD/src/wlan_hdd_cfg80211.c +++ b/CORE/HDD/src/wlan_hdd_cfg80211.c @@ -13809,6 +13809,15 @@ static int __wlan_hdd_change_station(struct wiphy *wiphy, "%s: After removing duplcates StaParams.supported_channels_len: %d", __func__, StaParams.supported_channels_len); } + if (params->supported_oper_classes_len > + SIR_MAC_MAX_SUPP_OPER_CLASSES) { + VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_INFO, + "received oper classes:%d, resetting it to max supported %d", + params->supported_oper_classes_len, + SIR_MAC_MAX_SUPP_OPER_CLASSES); + params->supported_oper_classes_len = + SIR_MAC_MAX_SUPP_OPER_CLASSES; + } vos_mem_copy(StaParams.supported_oper_classes, params->supported_oper_classes, params->supported_oper_classes_len); -- cgit v1.1