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[FFmpeg-devel,4/4] avcodec/siren: Increase noise category 5 and 6

Message ID 20201224232419.10369-4-michael@niedermayer.cc
State Accepted
Commit f3e4ebb00790312634e42bdd3f80ffbe34ce32e5
Headers show
Series [FFmpeg-devel,1/4] avformat/mpc8: Check size before implicitly converting to int | expand

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Commit Message

Michael Niedermayer Dec. 24, 2020, 11:24 p.m. UTC 
The entry read is not used in subsequent computation, thus its
value is not important.

Fixes: out of array read
Fixes: 28578/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SIREN_fuzzer-6332019122503680

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libavcodec/siren.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
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Patch

diff --git a/libavcodec/siren.c b/libavcodec/siren.c
index 1f37305bd1..7c2800d108 100644
--- a/libavcodec/siren.c
+++ b/libavcodec/siren.c
@@ -341,12 +341,12 @@  static const float mlt_quant[7][14] = {
     { 0.0f, 1.964f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f }
 };
 
-static const float noise_category5[20] = {
+static const float noise_category5[21] = {
     0.70711f, 0.6179f, 0.5005f, 0.3220f, 0.17678f, 0.17678f, 0.17678f, 0.17678f, 0.17678f, 0.17678f, 0.17678f,
     0.17678f, 0.17678f, 0.17678f, 0.17678f, 0.17678f, 0.17678f, 0.17678f, 0.17678f, 0.17678f
 };
 
-static const float noise_category6[20] = {
+static const float noise_category6[21] = {
     0.70711f, 0.5686f, 0.3563f, 0.25f, 0.25f, 0.25f, 0.25f, 0.25f, 0.25f, 0.25f, 0.25f, 0.25f,
     0.25f, 0.25f, 0.25f, 0.25f, 0.25f, 0.25f, 0.25f, 0.25f
 };