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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-02-25 01:43:16 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-02-25 01:43:53 +0100 |
| commit | 310d2af319d9113263f75e94f5a1b211c05260b5 (patch) | |
| tree | 94798a6707f6e317f451bf7aa7e6e601b207c9e5 | |
| parent | 513a3494396d0a20233273b3cadcb5ee86485d5c (diff) | |
| download | ffmpeg-310d2af319d9113263f75e94f5a1b211c05260b5.tar.gz | |
avcodec/pngdec: Fix runtime error: left shift of 152 by 24 places cannot be represented in type 'int'
Fixes: 666/clusterfuzz-testcase-6581447227867136
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/pngdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/pngdec.c b/libavcodec/pngdec.c index c2ea4d2765..a4eb6cce1b 100644 --- a/libavcodec/pngdec.c +++ b/libavcodec/pngdec.c @@ -796,7 +796,7 @@ static int decode_trns_chunk(AVCodecContext *avctx, PNGDecContext *s, return AVERROR_INVALIDDATA; for (i = 0; i < length; i++) { - v = bytestream2_get_byte(&s->gb); + unsigned v = bytestream2_get_byte(&s->gb); s->palette[i] = (s->palette[i] & 0x00ffffff) | (v << 24); } } else if (s->color_type == PNG_COLOR_TYPE_GRAY || s->color_type == PNG_COLOR_TYPE_RGB) { |