[Varnish] #1351: varnishlog segfault in vtx_scan_linktag

[Varnish]

#1351: varnishlog segfault in vtx_scan_linktag
------------------------+-----------------------------------------------
 Reporter:  lkarsten    |       Owner:  Martin Blix Grydeland <martin@…>
     Type:  defect      |      Status:  closed
 Priority:  normal      |   Milestone:
Component:  varnishlog  |     Version:  trunk
 Severity:  normal      |  Resolution:  fixed
 Keywords:              |
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Changes (by Martin Blix Grydeland <martin@…>):

 * owner:   => Martin Blix Grydeland <martin@…>
 * status:  new => closed
 * resolution:   => fixed


Comment:

 In [782251a341fab3eb3a8dc6f6db91cf94ed5e633a]:
 {{{
 #!CommitTicketReference repository=""
 revision="782251a341fab3eb3a8dc6f6db91cf94ed5e633a"
 Redo SLT_VSL diagnostic log records from the API

 A vtx_diag log record could realloc the memory buffers while
 processing a vtx, causing ptrs to previous memory to be still used.

 Fix this by having generated log records be malloced and kept on a
 separate list, which is always reported first on a reset cursor.

 Fixes: #1351
 }}}

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Ticket URL: <https://www.varnish-cache.org/trac/ticket/1351#comment:1>
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