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Bug #75762 Segfault: 11 on recursive clone call
Submitted: 2018-01-04 22:54 UTC Modified: 2018-01-04 23:16 UTC
From: emilio dot pinn at gmail dot com Assigned:
Status: Duplicate Package: Unknown/Other Function
PHP Version: 7.2.1 OS:
Private report: No CVE-ID: None
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From: emilio dot pinn at gmail dot com
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 [2018-01-04 22:54 UTC] emilio dot pinn at gmail dot com

The PHP interpreter crashes with "Segmentation fault: 11" if the __clone() function is overriden to clone the object iself creating an infinite recursive call.

Test script:

class Crash {
  public function __clone() {
    return clone $this;

$crash_obj = new Crash();

clone $crash_obj;

Expected result:
The interpreter should suicide gracefully when hits the stack size limit.

Actual result:
Segmentation fault: 11


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 [2018-01-04 23:16 UTC]
-Status: Open +Status: Duplicate
 [2018-01-04 23:16 UTC]
Duplicate of bug #64196
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