File ffmpeg-4-CVE-2025-10256.patch of Package A_tw-ffmpeg-4

Author: Jiasheng Jiang <jiashengjiangcool@gmail.com>
Date:   Wed Aug 6 16:39:47 2025 +0000

libavfilter/af_firequalizer: Add check for av_malloc_array()
    
    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>
    Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

diff a/libavfilter/af_firequalizer.c b/libavfilter/af_firequalizer.c
--- a/libavfilter/af_firequalizer.c
+++ b/libavfilter/af_firequalizer.c
@@ -822,6 +822,8 @@ static int config_input(AVFilterLink *in
     if (s->dumpfile) {
         s->analysis_rdft = av_rdft_init(rdft_bits, DFT_R2C);
         s->dump_buf = av_malloc_array(s->analysis_rdft_len, sizeof(*s->dump_buf));
+        if (!s->dump_buf)
+            return AVERROR(ENOMEM);
     }
 
     s->analysis_buf = av_malloc_array(s->analysis_rdft_len, sizeof(*s->analysis_buf));