[wp-trac] [WordPress Trac] #47164: map_deep in formatting.php do not handle null-byte

[WordPress Trac]

#47164: map_deep in formatting.php do not handle null-byte
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 Reporter:  bitcomplex    |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Formatting    |     Version:  5.2.2
 Severity:  critical      |  Resolution:
 Keywords:                |     Focuses:
--------------------------+------------------------------
Changes (by bitcomplex):

 * version:   => 5.2.2
 * severity:  normal => critical


Comment:

 I was pretty sure this was an issue related to a php bug patched in php7.2
 ( https://bugs.php.net/bug.php?id=49649 )
 But after upgrading to 7.3.7 (from 7.1.x) we get issues with this.

 serialized objects fetched from db fails here. It is possible because of
 the objectes in the db is serialized with an old php version where the bug
 exists. But wp could handle it better.

 Error: Cannot access property started with '\0'
 #12 /home/httpd/rackesbutiken/rackesbutiken.se/wp-
 includes/formatting.php(4742): map_deep
 #11 /home/httpd/rackesbutiken/rackesbutiken.se/wp-
 includes/formatting.php(2691): stripslashes_deep
 #10 /home/httpd/rackesbutiken/rackesbutiken.se/wp-
 includes/formatting.php(5342): wp_unslash
 #9 /home/httpd/rackesbutiken/rackesbutiken.se/wp-includes/meta.php(182):
 update_metadata
 #8 /home/httpd/rackesbutiken/rackesbutiken.se/wp-includes/post.php(2061):
 update_post_meta

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Ticket URL: <https://core.trac.wordpress.org/ticket/47164#comment:1>
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