armbian/linux-rockchip
0
0
Fork 0
mirror of https://github.com/armbian/linux-rockchip.git synced 2026-01-06 11:08:10 -08:00
Code Issues Packages Projects Releases Wiki Activity

netfilter: nf_tables: hold mutex on netns pre_exit path

Browse Source 
commit 3923b1e440 upstream.

clean_net() runs in workqueue while walking over the lists, grab mutex.

Fixes: 767d1216bf ("netfilter: nftables: fix possible UAF over chains from packet path in netns")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Pablo Neira Ayuso
2022-05-30 18:24:05 +02:00
committed by Greg Kroah-Hartman
parent 9e8d927cfa
commit 8b7454dd98
1 changed files with 2 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
net/netfilter/nf_tables_api.c
View File

@@ -8983,7 +8983,9 @@ static int __net_init nf_tables_init_net(struct net *net)
static void __net_exit nf_tables_pre_exit_net(struct net *net)
{
mutex_lock(&net->nft.commit_mutex);
__nft_release_hooks(net);
mutex_unlock(&net->nft.commit_mutex);
}
static void __net_exit nf_tables_exit_net(struct net *net)