jpeg2000: Fix unintended sign extension in malloc arguments of prec

Fixes: CID1026772/3 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago · 234f76ae7d
parent d8c10324ed
commit 234f76ae7d
1 changed files with 1 additions and 1 deletions
--- a/libavcodec/jpeg2000.c
+++ b/libavcodec/jpeg2000.c
@ -364,7 +364,7 @@ int ff_jpeg2000_init_component(Jpeg2000Component *comp,
                band->coord[1][j] = ff_jpeg2000_ceildiv(band->coord[1][j], dy);

            band->prec = av_malloc_array(reslevel->num_precincts_x *
-                                         reslevel->num_precincts_y,
+                                         (uint64_t)reslevel->num_precincts_y,
                                         sizeof(*band->prec));
            if (!band->prec)
                return AVERROR(ENOMEM);