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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-05-28 20:18:25 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-05-29 20:14:24 +0200 |
| commit | 223b5e8ac9f6461bb13ed365419ec485c5b2b002 (patch) | |
| tree | 0fb9876c76d034815e299fcab67f93ad8b09d878 | |
| parent | a7a7f32c8ad0179a1a85d0a8cff35924e6d90be8 (diff) | |
| download | ffmpeg-223b5e8ac9f6461bb13ed365419ec485c5b2b002.tar.gz | |
avcodec/aacpsy: Avoid floating point division by 0 of norm_fac
Fixes: Ticket7995
Fixes: CVE-2020-20446
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/aacpsy.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/aacpsy.c b/libavcodec/aacpsy.c index 482113d427..e51d29750b 100644 --- a/libavcodec/aacpsy.c +++ b/libavcodec/aacpsy.c @@ -794,7 +794,7 @@ static void psy_3gpp_analyze_channel(FFPsyContext *ctx, int channel, if (pe < 1.15f * desired_pe) { /* 6.6.1.3.6 "Final threshold modification by linearization" */ - norm_fac = 1.0f / norm_fac; + norm_fac = norm_fac ? 1.0f / norm_fac : 0; for (w = 0; w < wi->num_windows*16; w += 16) { for (g = 0; g < num_bands; g++) { AacPsyBand *band = &pch->band[w+g]; |