On 6/16/2024 8:08 PM, Michael Niedermayer wrote:
Fixes: out of array access
Fixes:
68302/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-4665793796177920
Found-by: continuous fuzzing process
https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
libavformat/iamf_parse.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavformat/iamf_parse.c b/libavformat/iamf_parse.c
index 5c2ff6862a7..12c2b9533a8 100644
--- a/libavformat/iamf_parse.c
+++ b/libavformat/iamf_parse.c
@@ -330,7 +330,7 @@ static int scalable_channel_layout_config(void *s,
AVIOContext *pb,
nb_layers = avio_r8(pb) >> 5; // get_bits(&gb, 3);
// skip_bits(&gb, 5); //reserved
- if (nb_layers > 6)
+ if (nb_layers > 6 || nb_layers == 0)
return AVERROR_INVALIDDATA;
audio_element->layers = av_calloc(nb_layers, sizeof(*audio_element->layers));
LGMT, but please change the commit message.
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