From f98d926bcf0da9945af7ea8036758a68458b9a63 Mon Sep 17 00:00:00 2001
From: Amar Singhal <asinghal@codeaurora.org>
Date: Fri, 18 May 2018 16:09:47 -0700
Subject: [PATCH] qcacmn: Validate the network buffer before processing

Check for potential buffer overflow and NULL ptr access
issues.

Change-Id: Iecb36530716dafa27a95a82392e97f662a7c25f0
CRs-Fixed: 2251345
---
 qdf/linux/src/qdf_trace.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/qdf/linux/src/qdf_trace.c b/qdf/linux/src/qdf_trace.c
index 39b09ca03480..5c4ea5cfb1d4 100644
--- a/qdf/linux/src/qdf_trace.c
+++ b/qdf/linux/src/qdf_trace.c
@@ -1890,7 +1890,8 @@ void qdf_dp_trace_data_pkt(qdf_nbuf_t nbuf, uint8_t pdev_id,
 		return;
 
 	qdf_dp_add_record(code, pdev_id,
-			  qdf_nbuf_data(nbuf), nbuf->len - nbuf->data_len,
+			  nbuf ? qdf_nbuf_data(nbuf) : NULL,
+			  nbuf ? nbuf->len - nbuf->data_len : 0,
 			  (uint8_t *)&buf, sizeof(struct qdf_dp_trace_data_buf),
 			  (nbuf) ? QDF_NBUF_CB_DP_TRACE_PRINT(nbuf) : false);
 }