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| author | Michael Niedermayer <michael@niedermayer.cc> | 2022-11-16 22:01:34 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2022-11-28 21:20:56 +0100 |
| commit | b2c1a0fc2b196d4cdbaae5b120229138857b559f (patch) | |
| tree | 0779fa37f5b615e0a3dd6a1d09e1af8e5ec18e20 | |
| parent | 8f975641d7e853bd8e407974db5fba998e6eb5f4 (diff) | |
| download | ffmpeg-b2c1a0fc2b196d4cdbaae5b120229138857b559f.tar.gz | |
avcodec/apac: use unsigned for sample residual
Fixes: signed integer overflow: -2146670226 + -2227242 cannot be represented in type 'int'
Fixes: 51943/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APAC_fuzzer-5779018251370496
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/apac.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/apac.c b/libavcodec/apac.c index 784abb622c..030f81adce 100644 --- a/libavcodec/apac.c +++ b/libavcodec/apac.c @@ -208,7 +208,7 @@ static int apac_decode(AVCodecContext *avctx, AVFrame *frame, for (int i = 0; i < c->block_length; i++) { int val = get_bits_long(gb, c->bit_length); - int delta = (val & 1) ? ~(val >> 1) : (val >> 1); + unsigned delta = (val & 1) ? ~(val >> 1) : (val >> 1); int sample; delta += c->last_delta; |