From 01d9a84ef58c2d0d89958b18420483b058ac9dd1 Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Wed, 17 May 2023 09:02:11 +0200
Subject: [PATCH] avfilter/avf_showspectrum: check for allocation error

---
 libavfilter/avf_showspectrum.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavfilter/avf_showspectrum.c b/libavfilter/avf_showspectrum.c
index 4ce964706f..6c3d0e8c2b 100644
--- a/libavfilter/avf_showspectrum.c
+++ b/libavfilter/avf_showspectrum.c
@@ -1292,6 +1292,8 @@ static int config_output(AVFilterLink *outlink)
             av_realloc_f(s->combine_buffer, s->w * 4,
                          sizeof(*s->combine_buffer));
     }
+    if (!s->combine_buffer)
+        return AVERROR(ENOMEM);
 
     av_log(ctx, AV_LOG_VERBOSE, "s:%dx%d FFT window size:%d\n",
            s->w, s->h, s->win_size);