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-rw-r--r--ext/mysqlnd/mysqlnd_result.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/ext/mysqlnd/mysqlnd_result.c b/ext/mysqlnd/mysqlnd_result.c
index 4d9c655932..fbf8ea031c 100644
--- a/ext/mysqlnd/mysqlnd_result.c
+++ b/ext/mysqlnd/mysqlnd_result.c
@@ -2,7 +2,7 @@
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
- | Copyright (c) 2006-2013 The PHP Group |
+ | Copyright (c) 2006-2014 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
@@ -187,9 +187,11 @@ MYSQLND_METHOD(mysqlnd_res, free_buffered_data)(MYSQLND_RES * result TSRMLS_DC)
if (set->data) {
unsigned int copy_on_write_performed = 0;
unsigned int copy_on_write_saved = 0;
+ zval **data = set->data;
+ set->data = NULL; /* prevent double free if following loop is interrupted */
for (row = set->row_count - 1; row >= 0; row--) {
- zval **current_row = set->data + row * field_count;
+ zval **current_row = data + row * field_count;
MYSQLND_MEMORY_POOL_CHUNK *current_buffer = set->row_buffers[row];
int64_t col;
@@ -211,8 +213,7 @@ MYSQLND_METHOD(mysqlnd_res, free_buffered_data)(MYSQLND_RES * result TSRMLS_DC)
MYSQLND_INC_GLOBAL_STATISTIC_W_VALUE2(STAT_COPY_ON_WRITE_PERFORMED, copy_on_write_performed,
STAT_COPY_ON_WRITE_SAVED, copy_on_write_saved);
- mnd_efree(set->data);
- set->data = NULL;
+ mnd_efree(data);
}
if (set->row_buffers) {