ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sat Aug 3 19:45:15 2024 +0200| [79a1cf30d1289f90da682263ba160f6e4a5a7bf1] | committer: Michael Niedermayer
avformat/wavdec: Check if there are 16 bytes before testing them Fixes: use-of-uninitialized-value Fixes: 70839/clusterfuzz-testcase-minimized-ffmpeg_dem_W64_fuzzer-5212907590189056 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=79a1cf30d1289f90da682263ba160f6e4a5a7bf1 --- libavformat/wavdec.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/libavformat/wavdec.c b/libavformat/wavdec.c index 00856a5eca..78e37b88d7 100644 --- a/libavformat/wavdec.c +++ b/libavformat/wavdec.c @@ -874,8 +874,7 @@ static int w64_read_header(AVFormatContext *s) uint8_t guid[16]; int ret; - avio_read(pb, guid, 16); - if (memcmp(guid, ff_w64_guid_riff, 16)) + if (avio_read(pb, guid, 16) != 16 || memcmp(guid, ff_w64_guid_riff, 16)) return AVERROR_INVALIDDATA; /* riff + wave + fmt + sizes */ _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
