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Bug #13068 mcrypt_module_open causes seg fault
Submitted: 2001-08-30 17:32 UTC Modified: 2001-09-07 03:29 UTC
From: scott at incursio dot com Assigned: derick (profile)
Status: Closed Package: mcrypt related
PHP Version: 4.0.6 OS: Linux
Private report: No CVE-ID: None
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From: scott at incursio dot com
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 [2001-08-30 17:32 UTC] scott at incursio dot com 
Running PHP 4.0.6 and libmcrypt 2.4.15 on a Linux box (2.4.x kernel).

I've narrowed it down to the call to mcrypt_module_open.  That's the one that hoses me.

$cipher = "des"; 
$td = mcrypt_module_open ($cipher, "", MCRYPT_MODE_CBC, ""); 

Sometimes it works, other times, I get seg faults, which would rule out library permissions, etc.

Any ideas?

Scott

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 [2001-08-30 20:24 UTC] scott at incursio dot com 
Correction, and solution.

It turns out that it wasn't mcrypt_module_open that was seg faulting, but mcrypt_decrypt.  The solution was that I didn't have a generic_init call.
 [2001-08-31 02:45 UTC] derick@php.net 
It's still a bug, PHP should not crash. Assiging to myself.
 [2001-09-07 03:29 UTC] derick@php.net 
I looked into it, and mcrypt_decrypt is using the old API which does NOT work in conjunction with mcrypt_module_open.
mcrypt_decrypt uses it's own mcrypt_module_open. I'm closing this bug, as there is no way to catch it (and it's not severe because you should not mix the old API and the new API).

Derick
 
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