[asterisk-bugs] [JIRA] (ASTERISK-23984) Infinite loop possible in ast_careful_fwrite()

[Matt Jordan (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-23984?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matt Jordan updated ASTERISK-23984:
-----------------------------------

    Target Release Version/s: 11.11.0

> Infinite loop possible in ast_careful_fwrite()
> ----------------------------------------------
>
>                 Key: ASTERISK-23984
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-23984
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Core/General
>    Affects Versions: 11.10.2
>            Reporter: Steve Davies
>      Target Release: 1.8.29.0, 11.11.0
>
>
> Towards the end of ast_careful_fwrite(), and attempt is made to flush the userspace buffers using fflush.
> If fflush first returns EOF/EINTR, and then returns EOF/SUCCESS, errno is not reset on the second time around the loop, and is then never reset, causing an infinite 100% CPU loop.



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