diff options
| author | Matthieu Darbois <mayeut@users.noreply.github.com> | 2016-09-06 00:50:44 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2016-09-06 00:50:44 +0200 |
| commit | ccd9ced49ea66f31b1d3d9dd07f4438fa94db328 (patch) | |
| tree | 2df9824d4109bf435b40b91ddebc93a07f7f4755 /src/lib | |
| parent | 9f24b078c7193e886f6cfb329d3469eb1facf68d (diff) | |
Add overflow check in opj_j2k_update_image_data (#817)
Diffstat (limited to 'src/lib')
| -rw-r--r-- | src/lib/openjp2/j2k.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/lib/openjp2/j2k.c b/src/lib/openjp2/j2k.c index 9eaa155e..01d1a4ff 100644 --- a/src/lib/openjp2/j2k.c +++ b/src/lib/openjp2/j2k.c @@ -8217,8 +8217,14 @@ static OPJ_BOOL opj_j2k_update_image_data (opj_tcd_t * p_tcd, OPJ_BYTE * p_data, /* Allocate output component buffer if necessary */ if (!l_img_comp_dest->data) { + OPJ_SIZE_T l_width = l_img_comp_dest->w; + OPJ_SIZE_T l_height = l_img_comp_dest->h; - l_img_comp_dest->data = (OPJ_INT32*) opj_calloc((OPJ_SIZE_T)l_img_comp_dest->w * (OPJ_SIZE_T)l_img_comp_dest->h, sizeof(OPJ_INT32)); + if ((l_height == 0U) || (l_width > (SIZE_MAX / l_height))) { + /* would overflow */ + return OPJ_FALSE; + } + l_img_comp_dest->data = (OPJ_INT32*) opj_calloc(l_width * l_height, sizeof(OPJ_INT32)); if (! l_img_comp_dest->data) { return OPJ_FALSE; } |