[tor-bugs] #24806 [Core Tor/Tor]: LTS branch leaks memory continuously under stress/attack, requires back-port of 0.3.2.8-rc fixes to remain viable

Thu Jan 11 00:29:00 UTC 2018

#24806: LTS branch leaks memory continuously under stress/attack, requires back-
port of 0.3.2.8-rc fixes to remain viable
--------------------------+----------------------------------
 Reporter:  starlight     |          Owner:  (none)
     Type:  defect        |         Status:  new
 Priority:  Medium        |      Milestone:  Tor: unspecified
Component:  Core Tor/Tor  |        Version:
 Severity:  Normal        |     Resolution:
 Keywords:                |  Actual Points:
Parent ID:                |         Points:
 Reviewer:                |        Sponsor:
--------------------------+----------------------------------

Comment (by starlight):

 quiet so far, have HSDIR again but no evidence of a popular onion service,
 rating backup up though not to previous max; no severe attacks

 if this ticket has sent them off I could, on the next shutdown, gdb-attach
 the daemon with a breakpoint just before exit() and call malloc_stats();
 will yield an indication on leak vs fragmentation;  daemon was definitely
 exhibiting errant memory behavior when first started per comment:6
 (holding steady at present); would take cores for further analysis

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/24806#comment:10>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online