Date: Sat, 6 Aug 2005 01:54:11 +0000 (UTC) From: Max Laier <mlaier@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/contrib/pf/net pf.c pfvar.h Message-ID: <200508060154.j761sBxl039263@repoman.freebsd.org>
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mlaier 2005-08-06 01:54:11 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_5)
sys/contrib/pf/net pf.c pfvar.h
Log:
MFC: pf.c, 1.35 pfvar.h, 1.12
Prevent a race condition. As pf_send_tcp() - called for expired synproxy
states - has to drop the lock when calling back to ip_output(), the state
purge timeout might run and gc the state. This results in a rb-tree
inconsistency. With this change we flag expiring states while holding the
lock and back off if the flag is already set.
Reported by: glebius
Revision Changes Path
1.18.2.10 +3 -1 src/sys/contrib/pf/net/pf.c
1.8.2.3 +3 -0 src/sys/contrib/pf/net/pfvar.h
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