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From 0fa5a17c98c4b8f9ee2286f4f0a50cf52a5fccb0 Mon Sep 17 00:00:00 2001
From: Matthieu Darbois <mayeut@users.noreply.github.com>
Date: Tue, 19 May 2015 21:57:27 +0000
Subject: [PATCH] [trunk] Correct potential double free on malloc failure in
opj_j2k_copy_default_tcp_and_create_tcp (fixes issue 492)
---
src/lib/openjp2/j2k.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/src/lib/openjp2/j2k.c b/src/lib/openjp2/j2k.c
index 8c62a39..cbdd368 100644
--- a/src/lib/openjp2/j2k.c
+++ b/src/lib/openjp2/j2k.c
@@ -7365,6 +7365,12 @@ static OPJ_BOOL opj_j2k_copy_default_tcp_and_create_tcd ( opj_j2k_t * p_j2
l_tcp->cod = 0;
l_tcp->ppt = 0;
l_tcp->ppt_data = 00;
+ /* Remove memory not owned by this tile in case of early error return. */
+ l_tcp->m_mct_decoding_matrix = 00;
+ l_tcp->m_nb_max_mct_records = 0;
+ l_tcp->m_mct_records = 00;
+ l_tcp->m_nb_max_mcc_records = 0;
+ l_tcp->m_mcc_records = 00;
/* Reconnect the tile-compo coding parameters pointer to the current tile coding parameters*/
l_tcp->tccps = l_current_tccp;
@@ -7402,6 +7408,8 @@ static OPJ_BOOL opj_j2k_copy_default_tcp_and_create_tcd ( opj_j2k_t * p_j2
++l_src_mct_rec;
++l_dest_mct_rec;
+ /* Update with each pass to free exactly what has been allocated on early return. */
+ l_tcp->m_nb_max_mct_records += 1;
}
/* Get the mcc_record of the dflt_tile_cp and copy them into the current tile cp*/
@@ -7411,6 +7419,7 @@ static OPJ_BOOL opj_j2k_copy_default_tcp_and_create_tcd ( opj_j2k_t * p_j2
return OPJ_FALSE;
}
memcpy(l_tcp->m_mcc_records,l_default_tcp->m_mcc_records,l_mcc_records_size);
+ l_tcp->m_nb_max_mcc_records = l_default_tcp->m_nb_max_mcc_records;
/* Copy the mcc record data from dflt_tile_cp to the current tile*/
l_src_mcc_rec = l_default_tcp->m_mcc_records;
--
2.5.0
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