b927058237
* gnu/packages/patches/openjpeg-use-after-free-fix.patch: New file. * gnu-system.am (dist_patch_DATA): Add it. * gnu/packages/image.scm (openjpeg, openjpeg-2.0)[source]: Add patch. [home-page]: Update.
48 lines
1.8 KiB
Diff
48 lines
1.8 KiB
Diff
From 940100c28ae28931722290794889cf84a92c5f6f Mon Sep 17 00:00:00 2001
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From: mayeut <mayeut@users.noreply.github.com>
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Date: Sun, 6 Sep 2015 17:24:03 +0200
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Subject: [PATCH] Fix potential use-after-free in opj_j2k_write_mco function
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Fixes #563
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---
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src/lib/openjp2/j2k.c | 8 ++++----
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1 file changed, 4 insertions(+), 4 deletions(-)
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diff --git a/src/lib/openjp2/j2k.c b/src/lib/openjp2/j2k.c
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index 19a48f5..d487d89 100644
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--- a/src/lib/openjp2/j2k.c
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+++ b/src/lib/openjp2/j2k.c
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@@ -5559,8 +5559,7 @@ static OPJ_BOOL opj_j2k_write_mco( opj_j2k_t *p_j2k,
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assert(p_stream != 00);
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l_tcp =&(p_j2k->m_cp.tcps[p_j2k->m_current_tile_number]);
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- l_current_data = p_j2k->m_specific_param.m_encoder.m_header_tile_data;
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-
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+
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l_mco_size = 5 + l_tcp->m_nb_mcc_records;
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if (l_mco_size > p_j2k->m_specific_param.m_encoder.m_header_tile_data_size) {
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@@ -5575,6 +5574,8 @@ static OPJ_BOOL opj_j2k_write_mco( opj_j2k_t *p_j2k,
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p_j2k->m_specific_param.m_encoder.m_header_tile_data = new_header_tile_data;
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p_j2k->m_specific_param.m_encoder.m_header_tile_data_size = l_mco_size;
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}
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+ l_current_data = p_j2k->m_specific_param.m_encoder.m_header_tile_data;
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+
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opj_write_bytes(l_current_data,J2K_MS_MCO,2); /* MCO */
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l_current_data += 2;
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@@ -5586,10 +5587,9 @@ static OPJ_BOOL opj_j2k_write_mco( opj_j2k_t *p_j2k,
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++l_current_data;
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l_mcc_record = l_tcp->m_mcc_records;
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- for (i=0;i<l_tcp->m_nb_mcc_records;++i) {
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+ for (i=0;i<l_tcp->m_nb_mcc_records;++i) {
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opj_write_bytes(l_current_data,l_mcc_record->m_index,1);/* Imco -> use the mcc indicated by 1*/
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++l_current_data;
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-
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++l_mcc_record;
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}
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--
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2.5.0
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