Commit 02c6c244 authored by Pablo Neira Ayuso's avatar Pablo Neira Ayuso Committed by Florian Westphal
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netfilter: nf_tables: GC transaction race with netns dismantle 



Use maybe_get_net() since GC workqueue might race with netns exit path.

Fixes: 5f68718b ("netfilter: nf_tables: GC transaction API to avoid race with control plane")
Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: default avatarFlorian Westphal <fw@strlen.de>
parent 6a33d8b7

net/netfilter/nf_tables_api.c

+6 −1
Original line number Diff line number Diff line
@@ -9481,9 +9481,14 @@ struct nft_trans_gc *nft_trans_gc_alloc(struct nft_set *set, 
	if (!trans)

		return NULL;



	trans->net = maybe_get_net(net);

	if (!trans->net) {

		kfree(trans);

		return NULL;

	}



	refcount_inc(&set->refs);

	trans->set = set;

	trans->net = get_net(net);

	trans->seq = gc_seq;



	return trans;