avcodec/pafvideo: Check packet size and frame code before ff_reget_buffer()

[ffmpeg] / libavcodec / magicyuv.c

diff --git a/libavcodec/magicyuv.c b/libavcodec/magicyuv.c
index 6250536da6168f1514902dfd0e38d066a8b9888f..5f09c0be5334cf6bdec3ec0db5dce10726a17ba5 100644 (file)
--- a/libavcodec/magicyuv.c
+++ b/libavcodec/magicyuv.c
@@ -97,6 +97,8 @@ static int huff_build10(VLC *vlc, uint8_t *len)
     for (i = 0; i < 1024; i++) {
         he[i].sym = 1023 - i;
         he[i].len = len[i];
+        if (len[i] == 0)
+            return AVERROR_INVALIDDATA;
     }
     AV_QSORT(he, 1024, HuffEntry, huff_cmp_len10);
 
@@ -127,6 +129,8 @@ static int huff_build(VLC *vlc, uint8_t *len)
     for (i = 0; i < 256; i++) {
         he[i].sym = 255 - i;
         he[i].len = len[i];
+        if (len[i] == 0)
+            return AVERROR_INVALIDDATA;
     }
     AV_QSORT(he, 256, HuffEntry, huff_cmp_len);