[FFmpeg-cvslog] avcodec/notchlc: Revert incorrect compression bound
Michael Niedermayer
git at videolan.org
Tue Oct 20 18:25:14 EEST 2020
ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Tue Oct 20 17:18:11 2020 +0200| [6707152f08bbb413329f4460ed604ad58583d972] | committer: Michael Niedermayer
avcodec/notchlc: Revert incorrect compression bound
Revert "avcodec/notchlc: Check uncompressed size against input for LZ4"
Found-by: durandal_1707
This reverts commit 51002362c4ed301e54cea1597666cd5cc9a134f3.
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=6707152f08bbb413329f4460ed604ad58583d972
---
libavcodec/notchlc.c | 5 -----
1 file changed, 5 deletions(-)
diff --git a/libavcodec/notchlc.c b/libavcodec/notchlc.c
index d13ce3193c..3f7079da70 100644
--- a/libavcodec/notchlc.c
+++ b/libavcodec/notchlc.c
@@ -490,11 +490,6 @@ static int decode_frame(AVCodecContext *avctx,
bytestream2_init(gb, s->lzf_buffer, uncompressed_size);
} else if (s->format == 1) {
- unsigned remaining = bytestream2_get_bytes_left(gb);
-
- if (remaining > 0x7E000000U || remaining + remaining/255 + 16 < uncompressed_size)
- return AVERROR_INVALIDDATA;
-
av_fast_padded_malloc(&s->uncompressed_buffer, &s->uncompressed_size,
uncompressed_size);
if (!s->uncompressed_buffer)
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