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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-12-07 00:14:16 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-05-19 17:17:35 +0200 |
| commit | a641bd4ad76777255ddce40a13f604f9996d9645 (patch) | |
| tree | 98a1875b1cae0a00f85b571f717d363032881319 | |
| parent | 7e0c15c3ec6fcaa5794d158fcc51b1478aefdeab (diff) | |
| download | ffmpeg-a641bd4ad76777255ddce40a13f604f9996d9645.tar.gz | |
avcodec/adpcm: Fix overflow in FFABS() IMA_EA_EACS
Fixes: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself
Fixes: 19235/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ADPCM_IMA_EA_EACS_fuzzer-5680878952382464
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 794352ae9d1cb32b4b9e45d3affb83763f4ee12e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/adpcm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/adpcm.c b/libavcodec/adpcm.c index caf77e1d7b..182ed3e2ef 100644 --- a/libavcodec/adpcm.c +++ b/libavcodec/adpcm.c @@ -1204,7 +1204,7 @@ static int adpcm_decode_frame(AVCodecContext *avctx, void *data, } for (i=0; i<=st; i++) { c->status[i].predictor = bytestream2_get_le32u(&gb); - if (FFABS(c->status[i].predictor) > (1<<16)) + if (FFABS((int64_t)c->status[i].predictor) > (1<<16)) return AVERROR_INVALIDDATA; } |