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Summary:ASTERISK-27571: res_pjsip: If SIP response is received during shutdown a crash may occur
Reporter:Joshua C. Colp (jcolp)Labels:pjsip
Date Opened:2018-01-10 07:44:51.000-0600Date Closed:2018-01-31 17:10:21.000-0600
Priority:MinorRegression?No
Status:Closed/CompleteComponents:Resources/res_pjsip
Versions:13.18.5 15.1.5 Frequency of
Occurrence
Related
Issues:
Environment:Attachments:( 0) backtrace_388.txt
( 1) full.txt
Description:During shutdown various things are unregistered, including res_pjsip_session. Unfortunately it is unregistered before res_pjsip. This causes a brief window where traffic may come in that is still associated with res_pjsip_session. Attempting to access the session will produce the wrong result as the index value present on res_pjsip_session will have been reset to -1 instead of its true position. This causes a crash.

Crash caught by testsuite: tests/channels/pjsip/transfers/attended_transfer/nominal/caller_local_app.
Comments:By: Joshua C. Colp (jcolp) 2018-01-10 07:45:53.815-0600

[~coreyfarrell] It seems as though we need to squash handling of traffic during shutdown.

By: Friendly Automation (friendly-automation) 2018-01-31 17:10:21.735-0600

Change 8109 merged by Jenkins2:
res_pjsip_session: Prevent crash during shutdown.

[https://gerrit.asterisk.org/8109|https://gerrit.asterisk.org/8109]

By: Friendly Automation (friendly-automation) 2018-01-31 17:11:47.927-0600

Change 8108 merged by Jenkins2:
res_pjsip_session: Prevent crash during shutdown.

[https://gerrit.asterisk.org/8108|https://gerrit.asterisk.org/8108]

By: Friendly Automation (friendly-automation) 2018-01-31 17:13:18.734-0600

Change 8110 merged by Jenkins2:
res_pjsip_session: Prevent crash during shutdown.

[https://gerrit.asterisk.org/8110|https://gerrit.asterisk.org/8110]