File ffmpeg-CVE-2021-38171.patch of Package ffmpeg.27460
diff --unified --recursive --text --new-file --color ffmpeg-3.4.2.old/libavformat/adtsenc.c ffmpeg-3.4.2.new/libavformat/adtsenc.c
--- ffmpeg-3.4.2.old/libavformat/adtsenc.c 2021-09-01 13:46:36.295722415 +0800
+++ ffmpeg-3.4.2.new/libavformat/adtsenc.c 2021-09-01 13:48:44.571493598 +0800
@@ -50,9 +50,11 @@
GetBitContext gb;
PutBitContext pb;
MPEG4AudioConfig m4ac;
- int off;
+ int off, ret;
- init_get_bits(&gb, buf, size * 8);
+ ret = init_get_bits8(&gb, buf, size);
+ if (ret < 0)
+ return ret;
off = avpriv_mpeg4audio_get_config(&m4ac, buf, size * 8, 1);
if (off < 0)
return off;