diff options
| author | Patrick McHardy <kaber@trash.net> | 2004-09-02 10:08:40 -0700 |
|---|---|---|
| committer | Patrick McHardy <kaber@trash.net> | 2004-09-02 10:08:40 -0700 |
| commit | 7cd101a51b34e2cfe1f93543937a54f0dadc2cc2 (patch) | |
| tree | a7c2b336136cafa2942b18d34de5133316c342e6 /net/ipv4/tcp_timer.c | |
| parent | 3c9df440395f71ab8d44aa2ff2bd1f590f052a48 (diff) | |
[NETFILTER]: Fix deadlock condition in conntrack/nat-helpers
There is a possible deadlock condition with conntrack/nat-helpers:
CPU1:
conntrack-helper:help: lock(private_lock)
ip_conntrack_expect_related: write_lock(ip_conntrack_lock)
CPU2:
nat-core:do_bindings: read_lock(ip_conntrack_lock)
nat-helper:help: lock(private_lock)
The lock in the nat-helper is unneccessary because the expectation
is never changed and is protected by ip_conntrack_lock.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_timer.c')
0 files changed, 0 insertions, 0 deletions