]> git.itanic.dy.fi Git - linux-stable/commit
netfilter: nf_tables: hold mutex on netns pre_exit path
authorPablo Neira Ayuso <pablo@netfilter.org>
Mon, 30 May 2022 16:24:05 +0000 (18:24 +0200)
committerPablo Neira Ayuso <pablo@netfilter.org>
Tue, 31 May 2022 21:13:10 +0000 (23:13 +0200)
commit3923b1e4406680d57da7e873da77b1683035d83f
tree007a0067530e3399f299eda20c7498d2306c2cce
parentfecf31ee395b0295f2d7260aa29946b7605f7c85
netfilter: nf_tables: hold mutex on netns pre_exit path

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

Fixes: 767d1216bff8 ("netfilter: nftables: fix possible UAF over chains from packet path in netns")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
net/netfilter/nf_tables_api.c