github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-28 17:13:52 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

netfilter: bridge: eb_tables: close module init race

Browse Source 
sashiko reports for unrelated patch:
 Does the core ebtables initialization in ebtables.c suffer from a similar race?
 Once nf_register_sockopt() completes, the sockopts are exposed globally.

sockopt has to be registered last, just like in ip/ip6/arptables.

Fixes: 5b53951cfc ("netfilter: ebtables: use net_generic infra")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Florian Westphal 2026-05-07 11:19:22 +02:00 committed by Pablo Neira Ayuso
parent 16bc4b6686
commit 27414ff1b2
1 changed files with 6 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
net/bridge/netfilter/ebtables.c
View File

@ -2583,19 +2583,20 @@ static int __init ebtables_init(void)
{
int ret;
ret = xt_register_target(&ebt_standard_target);
ret = register_pernet_subsys(&ebt_net_ops);
if (ret < 0)
return ret;
ret = nf_register_sockopt(&ebt_sockopts);
ret = xt_register_target(&ebt_standard_target);
if (ret < 0) {
xt_unregister_target(&ebt_standard_target);
unregister_pernet_subsys(&ebt_net_ops);
return ret;
}
ret = register_pernet_subsys(&ebt_net_ops);
ret = nf_register_sockopt(&ebt_sockopts);
if (ret < 0) {
nf_unregister_sockopt(&ebt_sockopts);
xt_unregister_target(&ebt_standard_target);
unregister_pernet_subsys(&ebt_net_ops);
return ret;
}