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ext/intl: Fix memory leak in MessageFormatter::format() #11658

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34 changes: 20 additions & 14 deletions ext/intl/msgformat/msgformat_format.c
Original file line number Diff line number Diff line change
Expand Up @@ -125,21 +125,27 @@ PHP_FUNCTION( msgfmt_format_message )
efree(spattern);
}

if (INTL_DATA_ERROR_CODE( mfo ) == U_PATTERN_SYNTAX_ERROR) {
char *msg = NULL;
smart_str parse_error_str;
parse_error_str = intl_parse_error_to_string( &parse_error );
spprintf( &msg, 0, "pattern syntax error (%s)", parse_error_str.s? ZSTR_VAL(parse_error_str.s) : "unknown parser error" );
smart_str_free( &parse_error_str );

intl_error_set_code( NULL, INTL_DATA_ERROR_CODE( mfo ) );
intl_errors_set_custom_msg( INTL_DATA_ERROR_P( mfo ), msg, 1 );

efree( msg );
/* Cannot use INTL_METHOD_CHECK_STATUS() as we need to free the message object formatter */
if (U_FAILURE(INTL_DATA_ERROR_CODE(mfo))) {
if (INTL_DATA_ERROR_CODE( mfo ) == U_PATTERN_SYNTAX_ERROR) {
char *msg = NULL;
smart_str parse_error_str;
parse_error_str = intl_parse_error_to_string( &parse_error );
spprintf( &msg, 0, "pattern syntax error (%s)", parse_error_str.s? ZSTR_VAL(parse_error_str.s) : "unknown parser error" );
smart_str_free( &parse_error_str );

intl_error_set_code( NULL, INTL_DATA_ERROR_CODE( mfo ) );
intl_errors_set_custom_msg( INTL_DATA_ERROR_P( mfo ), msg, 1 );

efree( msg );
} else {
intl_errors_set_custom_msg( INTL_DATA_ERROR_P(mfo), "Creating message formatter failed", 0 );
}
/* Reset custom error message as this is a static method that has no object */
intl_errors_reset(INTL_DATA_ERROR_P(mfo));
umsg_close(MSG_FORMAT_OBJECT(mfo));
RETURN_FALSE;
}

INTL_METHOD_CHECK_STATUS(mfo, "Creating message formatter failed");
}

msgfmt_do_format(mfo, args, return_value);

Expand Down
15 changes: 15 additions & 0 deletions ext/intl/tests/gh11658.phpt
Original file line number Diff line number Diff line change
@@ -0,0 +1,15 @@
--TEST--
GitHub #11658 MessageFormatter::format() leaks memory
--EXTENSIONS--
intl
--FILE--
<?php

ini_set("intl.error_level", E_WARNING);

$s = MessageFormatter::formatMessage('en', 'some {wrong.format}', []);
var_dump($s);
?>
--EXPECTF--
Warning: MessageFormatter::formatMessage(): pattern syntax error (parse error at offset 6, after "some {", before or at "wrong.format}") in %s on line %d
bool(false)