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| author | Michael Niedermayer <michael@niedermayer.cc> | 2023-03-05 00:51:38 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2023-05-22 02:49:58 +0200 |
| commit | a76efafdb9be966ae3ad52b32370dc644dd582bf (patch) | |
| tree | 48c751852ed7b55e440983395521fa56fbfc5d49 /libavformat | |
| parent | d09f50c0f5f045dec35f0ca22c2212fae2378dba (diff) | |
| download | ffmpeg-a76efafdb9be966ae3ad52b32370dc644dd582bf.tar.gz | |
avformat/wavdec: Check that smv block fits in available space
Fixes: OOM
Fixes: 56271/clusterfuzz-testcase-minimized-ffmpeg_dem_WAV_fuzzer-5290810045497344
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavformat')
| -rw-r--r-- | libavformat/wavdec.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavformat/wavdec.c b/libavformat/wavdec.c index e3f790fcc9..97e69ab2ee 100644 --- a/libavformat/wavdec.c +++ b/libavformat/wavdec.c @@ -730,6 +730,10 @@ smv_retry: goto smv_out; } size = avio_rl24(s->pb); + if (size > wav->smv_block_size) { + ret = AVERROR_EOF; + goto smv_out; + } ret = av_get_packet(s->pb, pkt, size); if (ret < 0) goto smv_out; |