PHP :: Bug #78412 :: Generator incorrectly reports non-releasable $this as GC child

Bug #78412	Generator incorrectly reports non-releasable $this as GC child
Submitted:	2019-08-13 22:06 UTC	Modified:	2019-08-14 15:48 UTC
From:	kelunik@php.net	Assigned:
Status:	Closed	Package:	Reproducible crash
PHP Version:	master-Git-2019-08-13 (Git)	OS:	Ubuntu 19.04
Private report:	No	CVE-ID:	None

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From:	kelunik@php.net
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[2019-08-13 22:06 UTC] kelunik@php.net

Description:
------------
Assertion failure happens with latest master, doesn't happen with 7.3.7 or my system's 7.2 binary.

Test script:
---------------
https://github.com/amphp/http-client/commit/780c0d894556c4ecbfa33233cbccd918a9d4c2a2

php examples/6-concurrent-requests.php

php: /home/kelunik/.php-build/release/Zend/zend_types.h:1035: zend_gc_delref: Assertion `p->refcount > 0' failed.


Expected result:
----------------
No assertion error.

Actual result:
--------------
php: /home/kelunik/.php-build/release/Zend/zend_types.h:1035: zend_gc_delref: Assertion `p->refcount > 0' failed.

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[2019-08-14 15:01 UTC] nikic@php.net

-Status: Open +Status: Verified

[2019-08-14 15:01 UTC] nikic@php.net

Also affects 7.2 (the assertion was added recently).

[2019-08-14 15:48 UTC] nikic@php.net

-Summary: Assertion `p->refcount > 0' in zend_gc_delref +Summary: Generator incorrectly reports non-releasable $this as GC child

[2019-08-14 15:54 UTC] nikic@php.net

Automatic comment on behalf of nikita.ppv@gmail.com
Revision: http://git.php.net/?p=php-src.git;a=commit;h=fcabe7e5e44067319f9c4123d71a7cea6a823af4
Log: Fixed bug #78412

[2019-08-14 15:54 UTC] nikic@php.net

-Status: Verified +Status: Closed

[2019-08-15 13:25 UTC] cmb@php.net

Automatic comment on behalf of nikita.ppv@gmail.com
Revision: http://git.php.net/?p=php-src.git;a=commit;h=c4cfab8f8425d01cb8beba604d8a3c9f0ec611b7
Log: Fixed bug #78412

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