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avcodec/jpeg2000: Check comp coords to be within the supported size 

Fixes assertion failure
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>
This commit is contained in:
Michael Niedermayer 2015-11-15 20:49:17 +01:00
parent 016fd413f9
commit a1a8cbcb35
1 changed files with 5 additions and 0 deletions
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5
libavcodec/jpeg2000.c
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@ -468,6 +468,11 @@ int ff_jpeg2000_init_component(Jpeg2000Component *comp,
return AVERROR_INVALIDDATA;
csize = (comp->coord[0][1] - comp->coord[0][0]) *
(comp->coord[1][1] - comp->coord[1][0]);
if (comp->coord[0][1] > 32768 ||
comp->coord[1][1] > 32768) {
av_log(avctx, AV_LOG_ERROR, "component size too large\n");
return AVERROR_PATCHWELCOME;
}
if (codsty->transform == FF_DWT97) {
csize += AV_INPUT_BUFFER_PADDING_SIZE / sizeof(*comp->f_data);