[asterisk-bugs] [JIRA] (ASTERISK-25085) Potential crash after unload of func_periodic_hook or test_message

[Corey Farrell (JIRA)]

Corey Farrell created ASTERISK-25085:
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             Summary: Potential crash after unload of func_periodic_hook or test_message
                 Key: ASTERISK-25085
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-25085
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
    Affects Versions: 13.3.2, SVN
            Reporter: Corey Farrell
            Severity: Minor


This crash can be very easily reproduced.  Install the latest 13 or master with samples configs.  Replace modules.conf:
{noformat}
[modules]
autoload=no
load=func_periodic_hook.so
load=pbx_config.so
{noformat}

Run {{asterisk -c}}, from CLI run:
{noformat}
module unload func_periodic_hook.so
dialplan show
{noformat}

The key to this bug is that func_periodic_hook is loaded first.  Then the context is rebuilt during the load of pbx_config.  At the unload of func_periodic_hook the original context pointer is no longer valid, so it fails to destroy the context.  Any access to the priorities registered by func_periodic_hook like with {{dialplan show}} will cause a segmentation fault.

The problem with test_message.so is identical.



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