ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sat Nov 12 18:14:19 2022 +0100| [b92260f70a4ac194d1cc09c40b92766d38c7c783] | committer: Michael Niedermayer
avformat/lafdec: Check for EOF in header reading Fixes: OOM testcase Fixes: 51527/clusterfuzz-testcase-minimized-ffmpeg_dem_LAF_fuzzer-5453663505612800 OOM can still happen after this as an arbitrary sized block is allocated and read this would require a redesign or some limit on the sample rate. 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=b92260f70a4ac194d1cc09c40b92766d38c7c783 --- libavformat/lafdec.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavformat/lafdec.c b/libavformat/lafdec.c index 12b0d8540b..d02b479c4d 100644 --- a/libavformat/lafdec.c +++ b/libavformat/lafdec.c @@ -111,6 +111,9 @@ static int laf_read_header(AVFormatContext *ctx) sample_rate = avio_rl32(pb); duration = avio_rl64(pb) / st_count; + if (avio_feof(pb)) + return AVERROR_INVALIDDATA; + switch (quality) { case 0: codec_id = AV_CODEC_ID_PCM_U8; _______________________________________________ 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".
