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php_stream_sock_open_from_socket could return NULL #9017

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zhou1615 opened this issue Jul 15, 2022 · 0 comments
Closed

php_stream_sock_open_from_socket could return NULL #9017

zhou1615 opened this issue Jul 15, 2022 · 0 comments
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Bug Extension: standard Status: Verified

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@zhou1615
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Description

This bug is reported by a newly developed static tool, therefore it could be a false positive, please confirm.

the function _php_stream_sock_open_from_socket will return NULL once php_stream_alloc_rel returns NULL, however in the function zif_stream_socket_pair of ext/standard/streamsfuncs.c file, the return value of _php_stream_sock_open_from_socket is not checked before dereference, which could lead to NULL pointer dereference.

PHP Version

master

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hwde added a commit to hwde/php-src that referenced this issue Jul 15, 2022
@hwde
Fix phpGH-9017: php_stream_sock_open_from_socket could return NULL
340024e
hwde added a commit to hwde/php-src that referenced this issue Jul 15, 2022
@hwde
Fix phpGH-9017: php_stream_sock_open_from_socket could return NULL
7618583
@cmb69 cmb69 closed this as completed in 3b7babf Jul 19, 2022
cmb69 added a commit that referenced this issue Jul 19, 2022
@cmb69
Merge branch 'PHP-8.0' into PHP-8.1
32d55f7 
* PHP-8.0:
  Fix GH-9017: php_stream_sock_open_from_socket could return NULL
cmb69 added a commit that referenced this issue Jul 19, 2022
@cmb69
Merge branch 'PHP-8.1'
33dae4b 
* PHP-8.1:
  Fix GH-9017: php_stream_sock_open_from_socket could return NULL
@cmb69 cmb69 changed the title A possible null pointer dereference. php_stream_sock_open_from_socket could return NULL Jul 19, 2022
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