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ext/standard: Reject NUL bytes in openlog() #22366

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ext/standard: Reject NUL bytes in openlog() #22366

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2 changes: 2 additions & 0 deletions NEWS
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Original file line number Diff line number Diff line change
Expand Up @@ -257,6 +257,8 @@ PHP NEWS
contains null bytes. (Weilin Du)
. dl() now raises a ValueError when the $extension_filename argument
contains null bytes. (Weilin Du)
. openlog() now raises a ValueError when the $prefix argument contains
null bytes. (Weilin Du)
. parse_str() now raises a ValueError when the $string argument contains
null bytes. (Weilin Du)
. proc_open() now raises a ValueError when the $cwd argument contains
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2 changes: 2 additions & 0 deletions UPGRADING
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Expand Up @@ -153,6 +153,8 @@ PHP 8.6 UPGRADE NOTES
contains null bytes.
. dl() now raises a ValueError when the $extension_filename argument
contains null bytes.
. openlog() now raises a ValueError when the $prefix argument contains
null bytes.
. parse_str() now raises a ValueError when the $string argument contains
null bytes.
. linkinfo() now raises a ValueError when the $path argument is empty.
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2 changes: 1 addition & 1 deletion ext/standard/syslog.c
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Expand Up @@ -61,7 +61,7 @@ PHP_FUNCTION(openlog)
size_t ident_len;

ZEND_PARSE_PARAMETERS_START(3, 3)
Z_PARAM_STRING(ident, ident_len)
Z_PARAM_PATH(ident, ident_len)
Z_PARAM_LONG(option)
Z_PARAM_LONG(facility)
ZEND_PARSE_PARAMETERS_END();
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16 changes: 16 additions & 0 deletions ext/standard/tests/network/openlog_null_bytes.phpt
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@@ -0,0 +1,16 @@
--TEST--
openlog() rejects null bytes in prefix
--SKIPIF--
<?php
if (!function_exists("openlog")) die("skip openlog() is not available");
?>
--FILE--
<?php
try {
openlog("foo\0bar", LOG_NDELAY, LOG_USER);
} catch (ValueError $e) {
echo $e->getMessage(), "\n";
}
?>
--EXPECT--
openlog(): Argument #1 ($prefix) must not contain any null bytes
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