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authorMichael Niedermayer <michael@niedermayer.cc>2024-08-14 16:34:19 +0200
committerMichael Niedermayer <michael@niedermayer.cc>2024-08-18 23:05:40 +0200
commit7e5410eadb51645e67d91708494c7566771f9015 (patch)
treeefc9552e789b9f9b5736324860e0e2758cab61c8
parent67947f2a1cbfe6ee83dfaf2a068b041d06802320 (diff)
downloadffmpeg-7e5410eadb51645e67d91708494c7566771f9015.tar.gz
avformat/iamf_parse: clear padding
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>
-rw-r--r--libavformat/iamf_parse.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/libavformat/iamf_parse.c b/libavformat/iamf_parse.c
index bc8d726b53..080c1a457a 100644
--- a/libavformat/iamf_parse.c
+++ b/libavformat/iamf_parse.c
@@ -1081,6 +1081,7 @@ 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) {