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ext/standard: validate mode is within 0..07777 #21152

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ext/standard: validate mode is within 0..07777 #21152

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ext/standard: validate mode is within 0..07777
arshidkv12 Feb 6, 2026
ea473b7
ext/standard: validate mode is within 0..07777
arshidkv12 Feb 6, 2026
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5 changes: 5 additions & 0 deletions ext/standard/file.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1087,6 +1087,11 @@ PHP_FUNCTION(mkdir)
Z_PARAM_RESOURCE_OR_NULL(zcontext)
ZEND_PARSE_PARAMETERS_END();

if (mode < 0 || (mode & ~07777)) {
zend_argument_value_error(2, "must be between 0 and 0o7777");
RETURN_THROWS();
}

context = php_stream_context_from_zval(zcontext, 0);

RETURN_BOOL(php_stream_mkdir(dir, (int)mode, (recursive ? PHP_STREAM_MKDIR_RECURSIVE : 0) | REPORT_ERRORS, context));
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12 changes: 12 additions & 0 deletions ext/standard/tests/file/mkdir_invalid_mode.phpt
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Original file line number Diff line number Diff line change
@@ -0,0 +1,12 @@
--TEST--
mkdir(): invalid mode
--FILE--
<?php
try {
mkdir(__DIR__ . '/testdir', 1000000);
} catch (ValueError $e) {
echo $e->getMessage(), PHP_EOL;
}
?>
--EXPECT--
mkdir(): Argument #2 ($permissions) must be between 0 and 0o7777
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