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Fix null pointer dereference in opj_j2k_add_mct() (#895)
author
Even Rouault
<even.rouault@spatialys.com>
Fri, 28 Jul 2017 19:39:30 +0000
(21:39 +0200)
committer
Even Rouault
<even.rouault@spatialys.com>
Fri, 28 Jul 2017 19:39:30 +0000
(21:39 +0200)
Fixes openjeg-crashes-2017-07-27/issue879-poc1.j2k of #895
src/lib/openjp2/j2k.c
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diff --git
a/src/lib/openjp2/j2k.c
b/src/lib/openjp2/j2k.c
index 89f2b45f08cbf16ae7ba84119eb6998259423096..b192f04fa1e9ac63442467aa005e51e1d3d7d076 100644
(file)
--- a/
src/lib/openjp2/j2k.c
+++ b/
src/lib/openjp2/j2k.c
@@
-5584,6
+5584,7
@@
static OPJ_BOOL opj_j2k_read_mct(opj_j2k_t *p_j2k,
if (l_mct_data->m_data) {
opj_free(l_mct_data->m_data);
l_mct_data->m_data = 00;
+ l_mct_data->m_data_size = 0;
}
l_mct_data->m_index = l_indix;