From 8812d047bc850ec0b6afec69ae2d716525b25128 Mon Sep 17 00:00:00 2001
From: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Date: Thu, 15 Dec 2016 02:14:37 +0100
Subject: [PATCH] electronicarts: prevent overflow during block alignment
 calculation

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
---
 libavformat/electronicarts.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/electronicarts.c b/libavformat/electronicarts.c
index 30eb723bd5..bfd3fed3a2 100644
--- a/libavformat/electronicarts.c
+++ b/libavformat/electronicarts.c
@@ -539,7 +539,7 @@ static int ea_read_header(AVFormatContext *s)
             ea->audio_codec = 0;
             return 1;
         }
-        if (ea->bytes <= 0) {
+        if (ea->bytes <= 0 || ea->bytes > 2) {
             av_log(s, AV_LOG_ERROR,
                    "Invalid number of bytes per sample: %d\n", ea->bytes);
             ea->audio_codec = AV_CODEC_ID_NONE;