[Bug 213424] The TCP fast open code can leak t_tfo_pending during startup

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Wed Oct 12 20:00:11 UTC 2016


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=213424

            Bug ID: 213424
           Summary: The TCP fast open code can leak t_tfo_pending during
                    startup
           Product: Base System
           Version: 11.0-STABLE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: jtl at freebsd.org

As reported in https://reviews.freebsd.org/D8218, there are multiple places
that the TFO code can leak the t_tfo_pending counter. The result of this is a
memory leak and/or TFO being disabled for a socket.

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