mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2025-03-17 20:17:55 +02:00
avcodec/cook: Enlarge gain table
Fixes: index 25 out of bounds for type 'float [23]' Fixes: 18355/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_COOK_fuzzer-5641398941908992 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit 50001cd440ac89ed125f0154dedbcfa2718d2d68) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
parent
6f4c963d61
commit
6ef666f4a6
@ -143,7 +143,7 @@ typedef struct cook {
|
||||
|
||||
/* generatable tables and related variables */
|
||||
int gain_size_factor;
|
||||
float gain_table[23];
|
||||
float gain_table[31];
|
||||
|
||||
/* data buffers */
|
||||
|
||||
@ -178,8 +178,8 @@ static av_cold void init_gain_table(COOKContext *q)
|
||||
{
|
||||
int i;
|
||||
q->gain_size_factor = q->samples_per_channel / 8;
|
||||
for (i = 0; i < 23; i++)
|
||||
q->gain_table[i] = pow(pow2tab[i + 52],
|
||||
for (i = 0; i < 31; i++)
|
||||
q->gain_table[i] = pow(pow2tab[i + 48],
|
||||
(1.0 / (double) q->gain_size_factor));
|
||||
}
|
||||
|
||||
@ -663,7 +663,7 @@ static void interpolate_float(COOKContext *q, float *buffer,
|
||||
for (i = 0; i < q->gain_size_factor; i++)
|
||||
buffer[i] *= fc1;
|
||||
} else { // smooth gain
|
||||
fc2 = q->gain_table[11 + (gain_index_next - gain_index)];
|
||||
fc2 = q->gain_table[15 + (gain_index_next - gain_index)];
|
||||
for (i = 0; i < q->gain_size_factor; i++) {
|
||||
buffer[i] *= fc1;
|
||||
fc1 *= fc2;
|
||||
|
Loading…
x
Reference in New Issue
Block a user