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jpeg2000dec: Add more checks when parsing headers
[ffmpeg.git]
/
libavcodec
/
jpeg2000dec.c
diff --git
a/libavcodec/jpeg2000dec.c
b/libavcodec/jpeg2000dec.c
index
61befdf
..
18346f9
100644
(file)
--- a/
libavcodec/jpeg2000dec.c
+++ b/
libavcodec/jpeg2000dec.c
@@
-1284,6
+1284,10
@@
static int jpeg2000_read_main_headers(Jpeg2000DecoderContext *s)
av_log(s->avctx, AV_LOG_ERROR, "Missing SOT\n");
return AVERROR_INVALIDDATA;
}
+ if (!s->tile) {
+ av_log(s->avctx, AV_LOG_ERROR, "Missing SIZ\n");
+ return AVERROR_INVALIDDATA;
+ }
tile = s->tile + s->curtileno;
tp = tile->tile_part + tile->tp_idx;