|  support |  documentation |  report a bug |  advanced search |  search howto |  statistics |  random bug |  login
Bug #42090 json_decode causes segmentation fault
Submitted: 2007-07-24 20:42 UTC Modified: 2007-07-24 23:02 UTC
From: iknowatim at yahoo dot com Assigned: bjori
Status: Closed Package: Reproducible crash
PHP Version: 5.2.3 OS: Linux (Ubuntu)
Private report: No CVE-ID:
 [2007-07-24 20:42 UTC] iknowatim at yahoo dot com
JSON Version 1.2.1

The following program causes PHP to exit with a segmentation fault:




Instead, it should fail gracefully ("\"" is not valid JSON) and return NULL.

The <a href="">JSON checker</a> correctly reports that it is invalid input: 
"syntax error at character 0"

Reproduce code:



Expected result:

Actual result:
Segmentation fault (core dumped)


Add a Patch

Pull Requests

Add a Pull Request


AllCommentsChangesGit/SVN commitsRelated reports
 [2007-07-24 23:02 UTC]
This bug has been fixed in CVS.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
Thank you for the report, and for helping us make PHP better.

FYI: Your expected result is wrong, PHP allows you to "decode" non-valid JSON data:
json_decode("foo"); // string(3) "foo"
json_decode('"'); // string(1) """

PHP Copyright © 2001-2015 The PHP Group
All rights reserved.
Last updated: Sun Nov 29 12:01:29 2015 UTC