diff options
| author | Michael Niedermayer <michael@niedermayer.cc> | 2018-08-12 22:55:59 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-08-16 00:55:37 +0200 |
| commit | db7e9082e1a1479c6a8844f7adf77eae03cc2aa7 (patch) | |
| tree | 60224b339d2c22a205b97c58cfda4d8a17f05e67 /libavcodec/shorten.c | |
| parent | 7007dabec08f2f9f81661e71ef482dde394e17a8 (diff) | |
avcodec/shorten: Fix integer overflow in residual/LPC combination
Fixes: signed integer overflow: -540538872 + -2012739576 cannot be represented in type 'int'
Fixes: 9255/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SHORTEN_fuzzer-5758630052757504
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/shorten.c')
| -rw-r--r-- | libavcodec/shorten.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/shorten.c b/libavcodec/shorten.c index 9094d3fc55..054494f8ce 100644 --- a/libavcodec/shorten.c +++ b/libavcodec/shorten.c @@ -391,7 +391,7 @@ static int decode_subframe_lpc(ShortenContext *s, int command, int channel, for (j = 0; j < pred_order; j++) sum += coeffs[j] * (unsigned)s->decoded[channel][i - j - 1]; s->decoded[channel][i] = get_sr_golomb_shorten(&s->gb, residual_size) + - (sum >> qshift); + (unsigned)(sum >> qshift); } /* add offset to current samples */ |