Messages in this thread | | | Date | Mon, 24 Sep 2007 18:55:38 +0200 | From | Patrick McHardy <> | Subject | Re: [PATCH] Remove broken netfilter binary sysctls from bridging code |
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Eric W. Biederman wrote: > jfannin@gmail.com (Joseph Fannin) writes: > > >>The netfilter sysctls in the bridging code don't set strategy routines: >> >> sysctl table check failed: /net/bridge/bridge-nf-call-arptables .3.10.1 Missing >>strategy >> sysctl table check failed: /net/bridge/bridge-nf-call-iptables .3.10.2 Missing >>strategy >> sysctl table check failed: /net/bridge/bridge-nf-call-ip6tables .3.10.3 Missing >>strategy >> sysctl table check failed: /net/bridge/bridge-nf-filter-vlan-tagged .3.10.4 >>Missing strategy >> sysctl table check failed: /net/bridge/bridge-nf-filter-pppoe-tagged .3.10.5 >>Missing strategy >> >> These binary sysctls can't work. The binary sysctl numbers of >>other netfilter sysctls with this problem are being removed. These >>need to go as well. >> >>Signed-off-by: Joseph Fannin <jfannin@gmail.com> > > > Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Queued for 2.6.24, thanks.
> Hmm. This is an interesting case. The proc method is forcing > the integer to be either 0 or 1 in a racy fashion. But none of the > users appear to depend upon that. > > So this is the least broken set of binary sysctls I have seen caught > by my check. > > A really good fix would be to remove the binary side and then to > modify brnf_sysctl_call_tables to allocate a temporary ctl_table and > integer on the stack and only set ctl->data after we have normalized > the written value. But since in practice nothing cares about > the race a better fix probably isn't worth it.
I seem to be missing something, the entire brnf_sysctl_call_tables thing looks purely cosmetic to me, wouldn't it be better to simply remove it?
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