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Code Issues Releases Activity

avformat/iamf_parse: clear padding

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Fixes: use of uninitialized value
Fixes: 70929/clusterfuzz-testcase-minimized-ffmpeg_dem_IAMF_fuzzer-5931276639469568

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 7e5410eadb51645e67d91708494c7566771f9015)
This commit is contained in:
Michael Niedermayer 2024-08-14 16:34:19 +02:00 committed by James Almer
parent 7e69129d2f
commit 7950855197
1 changed files with 1 additions and 0 deletions
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libavformat/iamf_parse.c
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@ -1080,6 +1080,7 @@ int ff_iamfdec_read_descriptors(IAMFContext *c, AVIOContext *pb,
size = avio_read(pb, header, FFMIN(MAX_IAMF_OBU_HEADER_SIZE, max_size));
if (size < 0)
return size;
memset(header + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
len = ff_iamf_parse_obu_header(header, size, &obu_size, &start_pos, &type, NULL, NULL);
if (len < 0 || obu_size > max_size) {