From: slangley at google dot com
Operating system: All
PHP version: 5.3.15
Package: Scripting Engine problem
Bug Type: Bug
Bug description:munmap() is called with the incorrect length
Description:
------------
In zend_stream.cc the size passed to mmap is the size of the file +
ZEND_MMAP_AHEAD.
*buf = mmap(0, size + ZEND_MMAP_AHEAD, PROT_READ, MAP_PRIVATE,
fileno(file_handle->handle.fp), 0);
However, when munmap() is called the incorrect size is passed.
static void zend_stream_unmap(zend_stream *stream TSRMLS_DC) { /* {{{ */
#if HAVE_MMAP
if (stream->mmap.map) {
munmap(stream->mmap.map, stream->mmap.len);
} else
#endif
The call to munmap should be
munmap(stream->mmap.map, stream->mmap.len + ZEND_MMAP_AHEAD);
Test script:
---------------
N/A
Expected result:
----------------
N/A
Actual result:
--------------
N/A
--
Edit bug report at https://bugs.php.net/bug.php?id=62716&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=62716&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=62716&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=62716&r=trysnapshottrunk
Fixed in SVN:
https://bugs.php.net/fix.php?id=62716&r=fixed
Fixed in SVN and need be documented:
https://bugs.php.net/fix.php?id=62716&r=needdocs
Fixed in release:
https://bugs.php.net/fix.php?id=62716&r=alreadyfixed
Need backtrace:
https://bugs.php.net/fix.php?id=62716&r=needtrace
Need Reproduce Script:
https://bugs.php.net/fix.php?id=62716&r=needscript
Try newer version:
https://bugs.php.net/fix.php?id=62716&r=oldversion
Not developer issue:
https://bugs.php.net/fix.php?id=62716&r=support
Expected behavior:
https://bugs.php.net/fix.php?id=62716&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=62716&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=62716&r=submittedtwice
register_globals:
https://bugs.php.net/fix.php?id=62716&r=globals
PHP 4 support discontinued:
https://bugs.php.net/fix.php?id=62716&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=62716&r=dst
IIS Stability:
https://bugs.php.net/fix.php?id=62716&r=isapi
Install GNU Sed:
https://bugs.php.net/fix.php?id=62716&r=gnused
Floating point limitations:
https://bugs.php.net/fix.php?id=62716&r=float
No Zend Extensions:
https://bugs.php.net/fix.php?id=62716&r=nozend
MySQL Configuration Error:
https://bugs.php.net/fix.php?id=62716&r=mysqlcfg
