[ https://issues.apache.org/jira/browse/TS-996?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
B Wyatt updated TS-996: ----------------------- Attachment: m_host.patch > HTTPHdr::m_host goes stale if HdrHeap::evacuate_from_str_heaps is called > ------------------------------------------------------------------------ > > Key: TS-996 > URL: https://issues.apache.org/jira/browse/TS-996 > Project: Traffic Server > Issue Type: Bug > Components: HTTP, MIME > Affects Versions: 3.1.0 > Reporter: B Wyatt > Attachments: m_host.patch > > > class HTTPHdr stores a copy of the string pointer from either the URLimpl or > the MIMEHdr for the host name in m_host. In both cases, these strings can be > moved to a new heap underneath the HTTPHdr. When this happens, the process > will, at best read stale memory and be fine and at worst read unmapped memory > and segfault. > Currently, HdrHeap::evacuate_from_str_heaps is called to coalesce multiple > heaps into a single heap. When this happens it will directly access the low > level objects via ::move_strings calls. These objects do not posses the > necessary information to inform parent objects about the change, nor does the > HdrHeap directly inform interested parties. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira