[asterisk-bugs] [JIRA] (ASTERISK-27859) Crash when freeing after bridge

[Richard Mudgett (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-27859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=243508#comment-243508 ] 

Richard Mudgett edited comment on ASTERISK-27859 at 5/23/18 7:01 AM:
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Memory corruption crashes in malloc/free rarely provide clues about what is corrupting memory and thus the need for new information under MALLOC_DEBUG/valgrind.  You could use either version we just need to know which was used.

P.S. ASTERISK-27862 is another memory corruption issue.  I mention this only because they may be related.


was (Author: rmudgett):
Memory corruption crashes in malloc/free rarely provide clues about what is corrupting memory and thus the need for new information under MALLOC_DEBUG/valgrind.  You could use either version we just need to know which was used.

> Crash when freeing after bridge
> -------------------------------
>
>                 Key: ASTERISK-27859
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-27859
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Core/Bridging
>    Affects Versions: 13.20.0
>         Environment: Debian Stretch on VMWare. Asterisk compiled from source
>            Reporter: Olivier Krief
>            Assignee: Unassigned
>         Attachments: core-brief.txt, core-full.txt, core-locks.txt, core-thread1.txt, debug_extract, syslog_extract
>
>
> Asterisk stops with the following message (from /var/log/syslog):
> May 16 12:11:07 localhost asterisk[3216]: *** Error in `/usr/sbin/asterisk': free(): invalid size: 0x00007f1a540db0a0 ***
> May 16 12:11:07 localhost asterisk[3216]: ======= Backtrace: =========
> May 16 12:11:07 localhost asterisk[3216]: /lib/x86_64-linux-gnu/libc.so.6(+0x70bfb)[0x7f1a6800dbfb]
> May 16 12:11:07 localhost asterisk[3216]: /lib/x86_64-linux-gnu/libc.so.6(+0x76fc6)[0x7f1a68013fc6]
> May 16 12:11:07 localhost asterisk[3216]: /lib/x86_64-linux-gnu/libc.so.6(+0x7780e)[0x7f1a6801480e]
> May 16 12:11:07 localhost asterisk[3216]: /usr/sbin/asterisk(ast_bridge_run_after_callback+0x11c)[0x56445a48b5cb]
> May 16 12:11:07 localhost asterisk[3216]: /usr/sbin/asterisk(+0x80032)[0x56445a481032]
> May 16 12:11:07 localhost asterisk[3216]: /usr/sbin/asterisk(+0x226d4e)[0x56445a627d4e]
> May 16 12:11:07 localhost asterisk[3216]: /lib/x86_64-linux-gnu/libpthread.so.0(+0x7494)[0x7f1a69153494]
> May 16 12:11:07 localhost asterisk[3216]: /lib/x86_64-linux-gnu/libc.so.6(clone+0x3f)[0x7f1a68085acf]



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