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| author | Conor McDermottroe <cmcdermottroe@engineyard.com> | 2014-01-14 02:08:13 +0000 |
|---|---|---|
| committer | Yasuo Ohgaki <yohgaki@php.net> | 2014-01-16 11:33:10 +0900 |
| commit | 5662ffb295c6f9cb10768d8246f2656aae6b8abb (patch) | |
| tree | cbdda9b0270d626a14741db59e667ca1e50a6939 /ext/session | |
| parent | b8774519e25f97bfcb40b365dee17e7492875074 (diff) | |
| download | php-git-5662ffb295c6f9cb10768d8246f2656aae6b8abb.tar.gz | |
Bug #66481 Segfaults on session_name()
If the previous value of session.name was NULL then any call to
session_name($string) would result in a segmentation fault.
This changes the behaviour to set the value of session.name to
"PHPSESSID" if a blank value is given in php.ini or via -d on the
command line. There is already protection against setting it to NULL via
session_name() or ini_set().
Diffstat (limited to 'ext/session')
| -rw-r--r-- | ext/session/session.c | 7 | ||||
| -rw-r--r-- | ext/session/tests/bug66481.phpt | 16 |
2 files changed, 23 insertions, 0 deletions
diff --git a/ext/session/session.c b/ext/session/session.c index 35db50ae64..5ea38475db 100644 --- a/ext/session/session.c +++ b/ext/session/session.c @@ -617,6 +617,13 @@ static PHP_INI_MH(OnUpdateSaveDir) /* {{{ */ static PHP_INI_MH(OnUpdateName) /* {{{ */ { + /* Don't accept a blank session name from php.ini or -d session.name= */ + if (!PG(modules_activated) && !new_value_length) { + /* Force the default value. */ + new_value = "PHPSESSID"; + new_value_length = 9; + } + /* Numeric session.name won't work at all */ if (PG(modules_activated) && (!new_value_length || is_numeric_string(new_value, new_value_length, NULL, NULL, 0))) { diff --git a/ext/session/tests/bug66481.phpt b/ext/session/tests/bug66481.phpt new file mode 100644 index 0000000000..0479b5ff4d --- /dev/null +++ b/ext/session/tests/bug66481.phpt @@ -0,0 +1,16 @@ +--TEST-- +Bug #66481: Calls to session_name() segfault when session.name is null. +--INI-- +session.name= +--SKIPIF-- +<?php include('skipif.inc'); ?> +--FILE-- +<?php + +var_dump(session_name("foo")); +var_dump(session_name("bar")); + +--EXPECTF-- +string(9) "PHPSESSID" +string(3) "foo" + |