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avformat/cinedec: Fix DoS due to lack of eof check

Fixes: loop.cine

孙浩 and 张洪亮(望初) committed 9 years ago

Commit 7e80b631 parent 7f9ec551 file · +5 −1Browse files

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libavformat/cinedec.c+5−1
@@ -267,8 +267,12 @@ static int cine_read_header(AVFormatContext *avctx) · 266 unmodified lines
267 267
268 /* parse image offsets */268 /* parse image offsets */
269 avio_seek(pb, offImageOffsets, SEEK_SET);269 avio_seek(pb, offImageOffsets, SEEK_SET);
270 for (i = 0; i < st->duration; i++)270 for (i = 0; i < st->duration; i++) {
271 if (avio_feof(pb))
272 return AVERROR_INVALIDDATA;
273
271 av_add_index_entry(st, avio_rl64(pb), i, 0, 0, AVINDEX_KEYFRAME);274 av_add_index_entry(st, avio_rl64(pb), i, 0, 0, AVINDEX_KEYFRAME);
275 }
272 276
273 return 0;277 return 0;
274}278}

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