ffmpeg | branch: release/4.4 | Michael Niedermayer <mich...@niedermayer.cc> | Sun Sep 19 21:51:28 2021 +0200| [cb92d65a5bdccbc27c0a117b7cc19ccfd0c3f5c9] | committer: Michael Niedermayer
oavformat/avidec: Check offset in odml Fixes: signed integer overflow: 9223372036854775807 + 8 cannot be represented in type 'long' Fixes: 38787/clusterfuzz-testcase-minimized-ffmpeg_dem_AVI_fuzzer-4859845799444480 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 255a7b423ed5e07536bdc72e993056daa4efe009) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=cb92d65a5bdccbc27c0a117b7cc19ccfd0c3f5c9 --- libavformat/avidec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/avidec.c b/libavformat/avidec.c index 174ac25db2..542161e360 100644 --- a/libavformat/avidec.c +++ b/libavformat/avidec.c @@ -245,7 +245,7 @@ static int read_odml_index(AVFormatContext *s, int64_t frame_num) avio_rl32(pb); /* size */ duration = avio_rl32(pb); - if (avio_feof(pb)) + if (avio_feof(pb) || offset > INT64_MAX - 8) return AVERROR_INVALIDDATA; pos = avio_tell(pb); _______________________________________________ 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".
