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d679f02295
This patch adds missing newlines, trims multiple redundant final newlines into a single one, and trims redundant leading newlines in all *.phpt sections. According to POSIX, a line is a sequence of zero or more non-' <newline>' characters plus a terminating '<newline>' character. [1] Files should normally have at least one final newline character. C89 [2] and later standards [3] mention a final newline: "A source file that is not empty shall end in a new-line character, which shall not be immediately preceded by a backslash character." Although it is not mandatory for all files to have a final newline fixed, a more consistent and homogeneous approach brings less of commit differences issues and a better development experience in certain text editors and IDEs. [1] http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_206 [2] https://port70.net/~nsz/c/c89/c89-draft.html#2.1.1.2 [3] https://port70.net/~nsz/c/c99/n1256.html#5.1.1.2
36 lines
748 B
PHP
36 lines
748 B
PHP
--TEST--
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Bug #72479: Use After Free Vulnerability in SNMP with GC and unserialize()
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--SKIPIF--
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<?php
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require_once(dirname(__FILE__).'/skipif.inc');
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?>
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--FILE--
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<?php
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$arr = [1, [1, 2, 3, 4, 5], 3, 4, 5];
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$poc = 'a:3:{i:1;N;i:2;O:4:"snmp":1:{s:11:"quick_print";'.serialize($arr).'}i:1;R:7;}';
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$out = unserialize($poc);
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gc_collect_cycles();
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$fakezval = ptr2str(1122334455);
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$fakezval .= ptr2str(0);
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$fakezval .= "\x00\x00\x00\x00";
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$fakezval .= "\x01";
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$fakezval .= "\x00";
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$fakezval .= "\x00\x00";
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for ($i = 0; $i < 5; $i++) {
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$v[$i] = $fakezval.$i;
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}
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var_dump($out[1]);
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function ptr2str($ptr)
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{
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$out = '';
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for ($i = 0; $i < 8; $i++) {
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$out .= chr($ptr & 0xff);
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$ptr >>= 8;
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}
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return $out;
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}
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?>
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--EXPECT--
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int(1)
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