| diff --git a/third_party/libopenjpeg20/pi.c b/third_party/libopenjpeg20/pi.c |
| index 1697bcb..06f1e41 100644 |
| --- a/third_party/libopenjpeg20/pi.c |
| +++ b/third_party/libopenjpeg20/pi.c |
| @@ -36,6 +36,7 @@ |
| * POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| +#include <limits.h> |
| #include "opj_includes.h" |
| |
| /** @defgroup PI PI - Implementation of a packet iterator */ |
| @@ -1236,7 +1237,13 @@ opj_pi_iterator_t *opj_pi_create_decode(opj_image_t *p_image, |
| l_current_pi = l_pi; |
| |
| /* memory allocation for include */ |
| - l_current_pi->include = (OPJ_INT16*) opj_calloc((l_tcp->numlayers +1) * l_step_l, sizeof(OPJ_INT16)); |
| + l_current_pi->include = 00; |
| + if |
| + (l_step_l && l_tcp->numlayers < UINT_MAX / l_step_l - 1) |
| + { |
| + l_current_pi->include = (OPJ_INT16*)opj_calloc((l_tcp->numlayers + 1) * l_step_l, sizeof(OPJ_INT16)); |
| + } |
| + |
| if |
| (!l_current_pi->include) |
| { |
