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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-12-07 00:14:16 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-07-03 12:10:23 +0200 |
| commit | 7be077fcf88d1cb0c81e1ba761288ab82e4d7bc9 (patch) | |
| tree | 234b09e33108a63d49d4bcd7c63f975c284fdcda | |
| parent | b36592ce07fb81b5035f9b6cfbeab5c7c5e2c36e (diff) | |
| download | ffmpeg-7be077fcf88d1cb0c81e1ba761288ab82e4d7bc9.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 4c3886a457..f7995d7bac 100644 --- a/libavcodec/adpcm.c +++ b/libavcodec/adpcm.c @@ -1147,7 +1147,7 @@ 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; } |