On Sun, Apr 28, 2019 at 04:53:53PM +0200, Tomas Härdin wrote: > sön 2019-04-28 klockan 11:42 +0200 skrev Michael Niedermayer: > > Fixes: Timeout (16sec -> 125msec) > > Fixes: > > 14283/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CINEPAK_fuzzer-5742851457024000 > > > > Found-by: continuous fuzzing process > > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > > > Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > > --- > > libavcodec/cinepak.c | 7 +++++++ > > 1 file changed, 7 insertions(+) > > > > diff --git a/libavcodec/cinepak.c b/libavcodec/cinepak.c > > index 9b0077402f..d26c505222 100644 > > --- a/libavcodec/cinepak.c > > +++ b/libavcodec/cinepak.c > > @@ -353,6 +353,13 @@ static int cinepak_predecode_check (CinepakContext *s) > > if (s->size < 10 + s->sega_film_skip_bytes + num_strips * 12) > > return AVERROR_INVALIDDATA; > > > > + if (num_strips) { > > + uint8_t *data = s->data + 10 + s->sega_film_skip_bytes; > > + int strip_size = AV_RB24 (data + 1); > > Should be OK since the check just before this ensures data[0..11] are > valid
will apply patch thx [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Never trust a computer, one day, it may think you are the virus. -- Compn
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