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authorChristoph M. Becker <cmbecker69@gmx.de>2020-03-26 19:01:33 +0100
committerChristoph M. Becker <cmbecker69@gmx.de>2020-03-31 08:38:23 +0200
commitb510250b8ebe9d90b1db150d7a1edc75893f2e48 (patch)
tree3adfd3eab317f4490d455d786a31dbfb855b5bfd
parenta681b12820ee1556668087bc7866006ca5329635 (diff)
downloadphp-git-b510250b8ebe9d90b1db150d7a1edc75893f2e48.tar.gz
Fix #79413: session_create_id() fails for active sessions
The comment on `PS_VALIDATE_SID_FUNC(files)` is very clear that the function is supposed to return `SUCCESS` if the session already exists. So to detect a collision, we have to check for `SUCCESS`, not `FAILURE`. We also fix the wrong condition in session_regenerate_id() as well.
-rw-r--r--NEWS3
-rw-r--r--ext/session/session.c4
-rw-r--r--ext/session/tests/bug79091.phpt2
-rw-r--r--ext/session/tests/bug79413.phpt15
4 files changed, 21 insertions, 3 deletions
diff --git a/NEWS b/NEWS
index 2a8a0da2af..454fedc86c 100644
--- a/NEWS
+++ b/NEWS
@@ -20,6 +20,9 @@ PHP NEWS
. Fixed bug #79412 (Opcache chokes and uses 100% CPU on specific script).
(Dmitry)
+- Session:
+ . Fixed bug #79413 (session_create_id() fails for active sessions). (cmb)
+
- Shmop:
. Fixed bug #79427 (Integer Overflow in shmop_open()). (cmb)
diff --git a/ext/session/session.c b/ext/session/session.c
index 078b3f0b3c..52b9da3180 100644
--- a/ext/session/session.c
+++ b/ext/session/session.c
@@ -2223,7 +2223,7 @@ static PHP_FUNCTION(session_regenerate_id)
RETURN_FALSE;
}
if (PS(use_strict_mode) && PS(mod)->s_validate_sid &&
- PS(mod)->s_validate_sid(&PS(mod_data), PS(id)) == FAILURE) {
+ PS(mod)->s_validate_sid(&PS(mod_data), PS(id)) == SUCCESS) {
zend_string_release_ex(PS(id), 0);
PS(id) = PS(mod)->s_create_sid(&PS(mod_data));
if (!PS(id)) {
@@ -2285,7 +2285,7 @@ static PHP_FUNCTION(session_create_id)
break;
} else {
/* Detect collision and retry */
- if (PS(mod)->s_validate_sid(&PS(mod_data), new_id) == FAILURE) {
+ if (PS(mod)->s_validate_sid(&PS(mod_data), new_id) == SUCCESS) {
zend_string_release_ex(new_id, 0);
new_id = NULL;
continue;
diff --git a/ext/session/tests/bug79091.phpt b/ext/session/tests/bug79091.phpt
index 1d14427159..4d60e69872 100644
--- a/ext/session/tests/bug79091.phpt
+++ b/ext/session/tests/bug79091.phpt
@@ -50,7 +50,7 @@ class MySessionHandler implements SessionHandlerInterface, SessionIdInterface, S
public function validateId($key)
{
- return false;
+ return true;
}
}
diff --git a/ext/session/tests/bug79413.phpt b/ext/session/tests/bug79413.phpt
new file mode 100644
index 0000000000..756b29f6ea
--- /dev/null
+++ b/ext/session/tests/bug79413.phpt
@@ -0,0 +1,15 @@
+--TEST--
+Bug #79413 (session_create_id() fails for active sessions)
+--SKIPIF--
+<?php
+if (!extension_loaded('session')) die('skip session extension not available');
+?>
+--FILE--
+<?php
+session_start();
+$old = session_id();
+$new = session_create_id();
+var_dump($new !== $old);
+?>
+--EXPECT--
+bool(true)