@@ -143,7 +143,7 @@ typedef struct cook {
/* generate tables and related variables */
int gain_size_factor;
- float gain_table[23];
+ float gain_table[31];
/* data buffers */
@@ -185,8 +185,8 @@ 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));
}
@@ -670,7 +670,7 @@ 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;
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> --- libavcodec/cook.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)