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| author | Shashank Pathmudi <shashank.pathmudi@ittiam.com> | 2023-10-26 09:39:20 +0530 |
|---|---|---|
| committer | sandeshvenkatesh <89826624+sandeshvenkatesh@users.noreply.github.com> | 2023-10-26 10:17:24 +0530 |
| commit | 947ad9f32b9378a637b6f3cf733fa80eb3f5dc90 (patch) | |
| tree | 6888045be10548c1ea90e43ad0ddcded17cb04af | |
| parent | b1a200212e1427ecf5e5954bb4608f78ad52d10e (diff) | |
| download | libxaac-947ad9f32b9378a637b6f3cf733fa80eb3f5dc90.tar.gz | |
Fix for divide-by-zero in impd_parse_dwnmix_instructions
These changes handle the divide-by-zero runtime error reported
while calculating the downmix coefficients because
base channel count was coming zero.
Bug: ossFuzz:63420
Test: poc in bug
| -rw-r--r-- | decoder/drc_src/impd_drc_static_payload.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/decoder/drc_src/impd_drc_static_payload.c b/decoder/drc_src/impd_drc_static_payload.c index 3c08adb..54e5162 100644 --- a/decoder/drc_src/impd_drc_static_payload.c +++ b/decoder/drc_src/impd_drc_static_payload.c @@ -731,7 +731,8 @@ WORD32 impd_parse_ch_layout(ia_bit_buf_struct* it_bit_buff, channel_layout->base_channel_count = impd_read_bits_buf(it_bit_buff, 7); if (it_bit_buff->error) return it_bit_buff->error; - if (channel_layout->base_channel_count > MAX_CHANNEL_COUNT) + if ((channel_layout->base_channel_count > MAX_CHANNEL_COUNT) || + (channel_layout->base_channel_count == 0)) return (UNEXPECTED_ERROR); if (ia_drc_params_struct->lfe_channel_map_count != -1 && channel_layout->base_channel_count != |