(Same exact email but with a meaningful topic this time...) Hi list,
I was asked if it is possible to MFC r281599 in FreeBSD 10: --- Fix an old and well-documented use-after-free race condition in TCP timers: - Add a reference from tcpcb to its inpcb - Defer tcpcb deletion until TCP timers have finished --- https://svnweb.freebsd.org/base?view=revision&revision=281599 First, I thought it was no possible as it touches struct tcp_timer/struct tcpcb_mem. Second, John pointed me that these two structures are used only internally. The only side effect I was able to find is the increase of struct tcpcb_mem size: - stable/10: struct tcpcb_mem size is 1024 bytes - stable/10 + tcp timer change: struct tcpcb_mem size is 1032 bytes - currently in head: struct tcpcb_mem size is 1048 bytes If you have extra concerns on MFC-ing this change please scream. Without nice yelps I plan to "MFC after: 1 month" (around May 16th). Thanks. -- Julien
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