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Fix memory leak that occurs on JSON parsing error #2236

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Fix memory leak that occurs on JSON parsing error #2236

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10 changes: 6 additions & 4 deletions apache2/msc_json.c
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Original file line number Diff line number Diff line change
Expand Up @@ -277,8 +277,9 @@ int json_process_chunk(modsec_rec *msr, const char *buf, unsigned int size, char
/* Feed our parser and catch any errors */
msr->json->status = yajl_parse(msr->json->handle, buf, size);
if (msr->json->status != yajl_status_ok) {
/* We need to free the yajl error message later, how to do this? */
*error_msg = yajl_get_error(msr->json->handle, 0, buf, size);
char *yajl_err = yajl_get_error(msr->json->handle, 0, buf, size);
*error_msg = apr_pstrdup(msr->mp, yajl_err);
yajl_free_error(msr->json->handle, yajl_err);
return -1;
}

Expand All @@ -297,8 +298,9 @@ int json_complete(modsec_rec *msr, char **error_msg) {
/* Wrap up the parsing process */
msr->json->status = yajl_complete_parse(msr->json->handle);
if (msr->json->status != yajl_status_ok) {
/* We need to free the yajl error message later, how to do this? */
*error_msg = yajl_get_error(msr->json->handle, 0, NULL, 0);
char *yajl_err = yajl_get_error(msr->json->handle, 0, NULL, 0);
*error_msg = apr_pstrdup(msr->mp, yajl_err);
yajl_free_error(msr->json->handle, yajl_err);
return -1;
}

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