commit bf87d26a43a3d07a51ae2b75dfae74427060a7b5
author Alok Kumar <alokkuma@codeaurora.org> Tue Apr 17 12:11:38 2018 +0530
committer Gerrit - the friendly Code Review server <code-review@localhost> Sat Apr 21 11:54:15 2018 -0700
tree 3de1c5f91fcc70c46f4bc84ff61cc04b6235077d
parent b2041e850a41288050b698ecf5de26e94e628928

wlan: Fix NULL pointer dereference issue in WLANTL_SampleRxRSSI

Add null check for pTLCb->atlSTAClients before dereferencing it.

Change-Id: Id3be987092a1d5129d9707fa3145de264a2eb4dd
CRs-Fixed: 2225758

CORE/TL/src/wlan_qct_tl.c

diff --git a/CORE/TL/src/wlan_qct_tl.c b/CORE/TL/src/wlan_qct_tl.c
index b125cc1..4668f62 100644
--- a/CORE/TL/src/wlan_qct_tl.c
+++ b/CORE/TL/src/wlan_qct_tl.c
@@ -6142,10 +6142,18 @@
 static void WLANTL_SampleRxRSSI(WLANTL_CbType* pTLCb, void * pBDHeader,
                                 uint8_t sta_id)
 {
-   WLANTL_STAClientType *pClientSTA = pTLCb->atlSTAClients[sta_id];
-   uint8_t count = pClientSTA->rssi_sample_cnt;
-   uint8_t old_idx = pClientSTA->rssi_stale_idx;
+   uint8_t count;
+   uint8_t old_idx;
    s8 curr_RSSI, curr_RSSI0, curr_RSSI1;
+   WLANTL_STAClientType *pClientSTA = pTLCb->atlSTAClients[sta_id];
+
+   if(pClientSTA == NULL) {
+      TLLOGE(VOS_TRACE( VOS_MODULE_ID_TL, VOS_TRACE_LEVEL_ERROR,
+      " %s: pClientSTA is NULL", __func__));
+      return;
+   }
+   count = pClientSTA->rssi_sample_cnt;
+   old_idx = pClientSTA->rssi_stale_idx;
 
    curr_RSSI0 = WLANTL_GETRSSI0(pBDHeader);
    curr_RSSI1 = WLANTL_GETRSSI1(pBDHeader);