PHP :: Bug #74130 :: /dev/urandom

Bug #74130	/dev/urandom
Submitted:	2017-02-19 19:12 UTC	Modified:	2017-02-19 19:16 UTC
From:	bart at jdsoft dot be	Assigned:
Status:	Duplicate	Package:	*Encryption and hash functions
PHP Version:	7.0.16	OS:	Linux
Private report:	No	CVE-ID:	None

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[2017-02-19 19:12 UTC] bart at jdsoft dot be

Description:
------------
Unable to generate a random value

Test script:
---------------
echo "<?php random_bytes(10);" | php   


Actual result:
--------------
PHP Fatal error:  Uncaught Exception: Could not gather sufficient random data in -:1                                                                                                                                             
Stack trace:                                                                                                                                                                                                                     
#0 -(1): random_bytes(10)                                                                                                                                                                                                        
#1 {main}                                                                                                                                                                                                                        
  thrown in - on line 1

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[2017-02-19 19:16 UTC] requinix@php.net

-Status: Open +Status: Duplicate

[2017-02-19 19:16 UTC] requinix@php.net

As said in the documentation, this happens on Linux if the system does not support the getrandom(2) syscall. That has been fixed with bug #74105.

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