ffmpeg | branch: release/2.8 | Michael Niedermayer <mich...@niedermayer.cc> | Fri Nov 18 19:04:47 2022 +0100| [1c89a132193caf5c598e1429e83435adbee4d00e] | committer: Michael Niedermayer
avformat/id3v2: Check taglen in read_uslt() Fixes: Timeout (read mostly the same data repeatly) Fixes: 52457/clusterfuzz-testcase-minimized-ffmpeg_dem_ALP_fuzzer-6610706313379840 Fixes: 53098/clusterfuzz-testcase-minimized-ffmpeg_dem_SOL_fuzzer-6481382981632000 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit a798af91d7d1fc31cfc1ae09cc6ab3907304f44f) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=1c89a132193caf5c598e1429e83435adbee4d00e --- libavformat/id3v2.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavformat/id3v2.c b/libavformat/id3v2.c index 2a0d892142..fea09f75d5 100644 --- a/libavformat/id3v2.c +++ b/libavformat/id3v2.c @@ -375,10 +375,10 @@ static void read_uslt(AVFormatContext *s, AVIOContext *pb, int taglen, lang[3] = '\0'; taglen -= 3; - if (decode_str(s, pb, encoding, &descriptor, &taglen) < 0) + if (decode_str(s, pb, encoding, &descriptor, &taglen) < 0 || taglen < 0) goto error; - if (decode_str(s, pb, encoding, &text, &taglen) < 0) + if (decode_str(s, pb, encoding, &text, &taglen) < 0 || taglen < 0) goto error; // FFmpeg does not support hierarchical metadata, so concatenate the keys. _______________________________________________ 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".
