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| author | Michael Niedermayer <michael@niedermayer.cc> | 2015-11-15 21:12:50 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2015-11-15 21:38:23 +0100 |
| commit | 2deaccfe670e2c51d895951d2e1cb73b04c87e99 (patch) | |
| tree | 77d22a7eca99e4d6662c9213a12d06f90cd94561 | |
| parent | a9c73b13c1170a43bc8b3e0e85c21f97145b3d2f (diff) | |
| download | ffmpeg-2deaccfe670e2c51d895951d2e1cb73b04c87e99.tar.gz | |
avcodec/jpeg2000dec: Check SIZ dimensions to be within the supported range
Fixes potential integer overflows
Fixes: 03e0abe721b1174856d41a1eb5d6a896/signal_sigabrt_7ffff6ae7cc9_3813_e71bf3541abed3ccba031cd5ba0269a4.avi
This fix is choosen to be simple to backport, better solution
for master is planed
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 6ef819c40bcc2175edba7ce9e20c3036c01b36b9)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/jpeg2000dec.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavcodec/jpeg2000dec.c b/libavcodec/jpeg2000dec.c index 04f94234d8..34591c3cc2 100644 --- a/libavcodec/jpeg2000dec.c +++ b/libavcodec/jpeg2000dec.c @@ -252,6 +252,10 @@ static int get_siz(Jpeg2000DecoderContext *s) avpriv_request_sample(s->avctx, "Support for image offsets"); return AVERROR_PATCHWELCOME; } + if (s->width > 32768U || s->height > 32768U) { + avpriv_request_sample(s->avctx, "Large Dimensions"); + return AVERROR_PATCHWELCOME; + } if (ncomponents <= 0) { av_log(s->avctx, AV_LOG_ERROR, "Invalid number of components: %d\n", |