[FFmpeg-devel] [PATCH] libavfilter/af_firequalizer: Add check for av_malloc_array()

From: Jiasheng Jiang <jiashengjiangcool@gmail.com>
To: ffmpeg-devel@ffmpeg.org
Cc: Jiasheng Jiang <jiashengjiangcool@gmail.com>
Subject: [FFmpeg-devel] [PATCH] libavfilter/af_firequalizer: Add check for av_malloc_array()
Date: Wed,  6 Aug 2025 16:39:47 +0000
Message-ID: <20250806163947.35180-1-jiashengjiangcool@gmail.com> (raw)

Add check for the return value of av_malloc_array() to avoid potential NULL pointer dereference.

Fixes: d3be186ed1 ("avfilter/firequalizer: add dumpfile and dumpscale option")
Signed-off-by: Jiasheng Jiang <jiashengjiangcool@gmail.com>
---
 libavfilter/af_firequalizer.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavfilter/af_firequalizer.c b/libavfilter/af_firequalizer.c
index 38663200eb..f14983b431 100644
--- a/libavfilter/af_firequalizer.c
+++ b/libavfilter/af_firequalizer.c
@@ -808,6 +808,8 @@ static int config_input(AVFilterLink *inlink)
         if ((ret = av_tx_init(&s->analysis_rdft, &s->analysis_rdft_fn, AV_TX_FLOAT_RDFT, 0, 1 << rdft_bits, &scale, 0)) < 0)
             return ret;
         s->dump_buf = av_malloc_array(s->analysis_rdft_len + 2, sizeof(*s->dump_buf));
+        if (!s->dump_buf)
+            return AVERROR(ENOMEM);
     }
 
     s->analysis_buf = av_malloc_array((s->analysis_rdft_len + 2), sizeof(*s->analysis_buf));
-- 
2.25.1

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