diff --git a/src/Symfony/Bridge/PhpUnit/DeprecationErrorHandler.php b/src/Symfony/Bridge/PhpUnit/DeprecationErrorHandler.php
index 72f9c7f76f95..ed77d1417b47 100644
--- a/src/Symfony/Bridge/PhpUnit/DeprecationErrorHandler.php
+++ b/src/Symfony/Bridge/PhpUnit/DeprecationErrorHandler.php
@@ -105,7 +105,7 @@ public static function collectDeprecations($outputFile)
                 $filesStack[] = $frame['file'];
             }
 
-            $deprecations[] = [error_reporting(), $msg, $file, $filesStack];
+            $deprecations[] = [error_reporting() & $type, $msg, $file, $filesStack];
 
             return null;
         });
@@ -135,7 +135,7 @@ public function handleError($type, $msg, $file, $line, $context = [])
             $method = $deprecation->originatingMethod();
             $msg = $deprecation->getMessage();
 
-            if (0 !== error_reporting()) {
+            if (error_reporting() & $type) {
                 $group = 'unsilenced';
             } elseif ($deprecation->isLegacy()) {
                 $group = 'legacy';
diff --git a/src/Symfony/Bridge/PhpUnit/Legacy/SymfonyTestsListenerTrait.php b/src/Symfony/Bridge/PhpUnit/Legacy/SymfonyTestsListenerTrait.php
index 00433b16b7ee..0cb37c0743ac 100644
--- a/src/Symfony/Bridge/PhpUnit/Legacy/SymfonyTestsListenerTrait.php
+++ b/src/Symfony/Bridge/PhpUnit/Legacy/SymfonyTestsListenerTrait.php
@@ -320,7 +320,7 @@ public static function handleError($type, $msg, $file, $line, $context = [])
         if (\is_array($parsedMsg)) {
             $msg = $parsedMsg['deprecation'];
         }
-        if (error_reporting()) {
+        if (error_reporting() & $type) {
             $msg = 'Unsilenced deprecation: '.$msg;
         }
         self::$gatheredDeprecations[] = $msg;
diff --git a/src/Symfony/Component/HttpKernel/Log/Logger.php b/src/Symfony/Component/HttpKernel/Log/Logger.php
index e3badc3676e6..1e6308d6e0ed 100644
--- a/src/Symfony/Component/HttpKernel/Log/Logger.php
+++ b/src/Symfony/Component/HttpKernel/Log/Logger.php
@@ -37,10 +37,10 @@ class Logger extends AbstractLogger
     private $formatter;
     private $handle;
 
-    public function __construct(string $minLevel = null, $output = 'php://stderr', callable $formatter = null)
+    public function __construct(string $minLevel = null, $output = null, callable $formatter = null)
     {
         if (null === $minLevel) {
-            $minLevel = 'php://stdout' === $output || 'php://stderr' === $output ? LogLevel::CRITICAL : LogLevel::WARNING;
+            $minLevel = null === $output || 'php://stdout' === $output || 'php://stderr' === $output ? LogLevel::ERROR : LogLevel::WARNING;
 
             if (isset($_ENV['SHELL_VERBOSITY']) || isset($_SERVER['SHELL_VERBOSITY'])) {
                 switch ((int) (isset($_ENV['SHELL_VERBOSITY']) ? $_ENV['SHELL_VERBOSITY'] : $_SERVER['SHELL_VERBOSITY'])) {
@@ -58,7 +58,7 @@ public function __construct(string $minLevel = null, $output = 'php://stderr', c
 
         $this->minLevelIndex = self::$levels[$minLevel];
         $this->formatter = $formatter ?: [$this, 'format'];
-        if (false === $this->handle = \is_resource($output) ? $output : @fopen($output, 'a')) {
+        if ($output && false === $this->handle = \is_resource($output) ? $output : @fopen($output, 'a')) {
             throw new InvalidArgumentException(sprintf('Unable to open "%s".', $output));
         }
     }
@@ -79,10 +79,14 @@ public function log($level, $message, array $context = [])
         }
 
         $formatter = $this->formatter;
-        @fwrite($this->handle, $formatter($level, $message, $context));
+        if ($this->handle) {
+            @fwrite($this->handle, $formatter($level, $message, $context));
+        } else {
+            error_log($formatter($level, $message, $context, false));
+        }
     }
 
-    private function format(string $level, string $message, array $context): string
+    private function format(string $level, string $message, array $context, bool $prefixDate = true): string
     {
         if (false !== strpos($message, '{')) {
             $replacements = [];
@@ -101,6 +105,11 @@ private function format(string $level, string $message, array $context): string
             $message = strtr($message, $replacements);
         }
 
-        return sprintf('%s [%s] %s', date(\DateTime::RFC3339), $level, $message).PHP_EOL;
+        $log = sprintf('[%s] %s', $level, $message).PHP_EOL;
+        if ($prefixDate) {
+            $log = date(\DateTime::RFC3339).' '.$log;
+        }
+
+        return $log;
     }
 }
diff --git a/src/Symfony/Component/Security/Core/Authentication/Token/AnonymousToken.php b/src/Symfony/Component/Security/Core/Authentication/Token/AnonymousToken.php
index 8c658060ad4a..db94766d3f16 100644
--- a/src/Symfony/Component/Security/Core/Authentication/Token/AnonymousToken.php
+++ b/src/Symfony/Component/Security/Core/Authentication/Token/AnonymousToken.php
@@ -68,6 +68,7 @@ public function __serialize(): array
     public function __unserialize(array $data): void
     {
         [$this->secret, $parentData] = $data;
+        $parentData = \is_array($parentData) ? $parentData : unserialize($parentData);
         parent::__unserialize($parentData);
     }
 }
diff --git a/src/Symfony/Component/Security/Core/Authentication/Token/PreAuthenticatedToken.php b/src/Symfony/Component/Security/Core/Authentication/Token/PreAuthenticatedToken.php
index eb20f7fe6bbd..80ac0fff38df 100644
--- a/src/Symfony/Component/Security/Core/Authentication/Token/PreAuthenticatedToken.php
+++ b/src/Symfony/Component/Security/Core/Authentication/Token/PreAuthenticatedToken.php
@@ -26,7 +26,6 @@ class PreAuthenticatedToken extends AbstractToken
     /**
      * @param string|\Stringable|UserInterface $user
      * @param mixed                            $credentials
-     * @param string                           $providerKey
      * @param string[]                         $roles
      */
     public function __construct($user, $credentials, string $providerKey, array $roles = [])
@@ -88,6 +87,7 @@ public function __serialize(): array
     public function __unserialize(array $data): void
     {
         [$this->credentials, $this->providerKey, $parentData] = $data;
+        $parentData = \is_array($parentData) ? $parentData : unserialize($parentData);
         parent::__unserialize($parentData);
     }
 }
diff --git a/src/Symfony/Component/Security/Core/Authentication/Token/RememberMeToken.php b/src/Symfony/Component/Security/Core/Authentication/Token/RememberMeToken.php
index a41c7ef5d5e7..15925e6252de 100644
--- a/src/Symfony/Component/Security/Core/Authentication/Token/RememberMeToken.php
+++ b/src/Symfony/Component/Security/Core/Authentication/Token/RememberMeToken.php
@@ -101,6 +101,7 @@ public function __serialize(): array
     public function __unserialize(array $data): void
     {
         [$this->secret, $this->providerKey, $parentData] = $data;
+        $parentData = \is_array($parentData) ? $parentData : unserialize($parentData);
         parent::__unserialize($parentData);
     }
 }
diff --git a/src/Symfony/Component/Security/Core/Authentication/Token/SwitchUserToken.php b/src/Symfony/Component/Security/Core/Authentication/Token/SwitchUserToken.php
index 4177cee658f6..4390d68a6e5c 100644
--- a/src/Symfony/Component/Security/Core/Authentication/Token/SwitchUserToken.php
+++ b/src/Symfony/Component/Security/Core/Authentication/Token/SwitchUserToken.php
@@ -54,6 +54,7 @@ public function __serialize(): array
     public function __unserialize(array $data): void
     {
         [$this->originalToken, $parentData] = $data;
+        $parentData = \is_array($parentData) ? $parentData : unserialize($parentData);
         parent::__unserialize($parentData);
     }
 }
diff --git a/src/Symfony/Component/Security/Core/Authentication/Token/UsernamePasswordToken.php b/src/Symfony/Component/Security/Core/Authentication/Token/UsernamePasswordToken.php
index eefe75d2d3ae..f9a4a5d4e202 100644
--- a/src/Symfony/Component/Security/Core/Authentication/Token/UsernamePasswordToken.php
+++ b/src/Symfony/Component/Security/Core/Authentication/Token/UsernamePasswordToken.php
@@ -99,6 +99,7 @@ public function __serialize(): array
     public function __unserialize(array $data): void
     {
         [$this->credentials, $this->providerKey, $parentData] = $data;
+        $parentData = \is_array($parentData) ? $parentData : unserialize($parentData);
         parent::__unserialize($parentData);
     }
 }
diff --git a/src/Symfony/Component/Security/Core/Exception/AccountStatusException.php b/src/Symfony/Component/Security/Core/Exception/AccountStatusException.php
index f3fa661c31f4..1b4e818a1157 100644
--- a/src/Symfony/Component/Security/Core/Exception/AccountStatusException.php
+++ b/src/Symfony/Component/Security/Core/Exception/AccountStatusException.php
@@ -53,6 +53,7 @@ public function __serialize(): array
     public function __unserialize(array $data): void
     {
         [$this->user, $parentData] = $data;
+        $parentData = \is_array($parentData) ? $parentData : unserialize($parentData);
         parent::__unserialize($parentData);
     }
 }
diff --git a/src/Symfony/Component/Security/Core/Exception/CustomUserMessageAuthenticationException.php b/src/Symfony/Component/Security/Core/Exception/CustomUserMessageAuthenticationException.php
index 324658a44335..799d7e0caf37 100644
--- a/src/Symfony/Component/Security/Core/Exception/CustomUserMessageAuthenticationException.php
+++ b/src/Symfony/Component/Security/Core/Exception/CustomUserMessageAuthenticationException.php
@@ -69,6 +69,7 @@ public function __serialize(): array
     public function __unserialize(array $data): void
     {
         [$parentData, $this->messageKey, $this->messageData] = $data;
+        $parentData = \is_array($parentData) ? $parentData : unserialize($parentData);
         parent::__unserialize($parentData);
     }
 }
diff --git a/src/Symfony/Component/Security/Core/Exception/UsernameNotFoundException.php b/src/Symfony/Component/Security/Core/Exception/UsernameNotFoundException.php
index e1f816bc6b09..f46013236c12 100644
--- a/src/Symfony/Component/Security/Core/Exception/UsernameNotFoundException.php
+++ b/src/Symfony/Component/Security/Core/Exception/UsernameNotFoundException.php
@@ -69,6 +69,7 @@ public function __serialize(): array
     public function __unserialize(array $data): void
     {
         [$this->username, $parentData] = $data;
+        $parentData = \is_array($parentData) ? $parentData : unserialize($parentData);
         parent::__unserialize($parentData);
     }
 }
diff --git a/src/Symfony/Component/Security/Guard/Token/PostAuthenticationGuardToken.php b/src/Symfony/Component/Security/Guard/Token/PostAuthenticationGuardToken.php
index 1c58199c5b0f..511f455531ec 100644
--- a/src/Symfony/Component/Security/Guard/Token/PostAuthenticationGuardToken.php
+++ b/src/Symfony/Component/Security/Guard/Token/PostAuthenticationGuardToken.php
@@ -83,6 +83,7 @@ public function __serialize(): array
     public function __unserialize(array $data): void
     {
         [$this->providerKey, $parentData] = $data;
+        $parentData = \is_array($parentData) ? $parentData : unserialize($parentData);
         parent::__unserialize($parentData);
     }
 }