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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-05-28 20:31:19 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-05-29 20:14:24 +0200 |
| commit | 38d18fb57863bb9c54e68ae44aa780c5c282a184 (patch) | |
| tree | 0905625e67e965ce090e6c15fc002233d3d0c8bf /libavcodec/lpc.c | |
| parent | 223b5e8ac9f6461bb13ed365419ec485c5b2b002 (diff) | |
| download | ffmpeg-38d18fb57863bb9c54e68ae44aa780c5c282a184.tar.gz | |
avcodec/lpc: Avoid floating point division by 0
Fixes: Ticket7996
Fixes: CVE-2020-20445
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/lpc.c')
| -rw-r--r-- | libavcodec/lpc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/lpc.c b/libavcodec/lpc.c index 1d1d04fd80..3ed61563ee 100644 --- a/libavcodec/lpc.c +++ b/libavcodec/lpc.c @@ -189,7 +189,7 @@ double ff_lpc_calc_ref_coefs_f(LPCContext *s, const float *samples, int len, compute_ref_coefs(autoc, order, ref, error); for (i = 0; i < order; i++) avg_err = (avg_err + error[i])/2.0f; - return signal/avg_err; + return avg_err ? signal/avg_err : NAN; } /** |