From 707577f166a36e34c17e19a9dd08610b378f2b40 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Wed, 6 Sep 2023 17:22:58 +0200 Subject: [PATCH -stable,5.15 15/17] netfilter: nft_set_pipapo: stop GC iteration if GC transaction allocation fails commit 6d365eabce3c018a80f6e0379b17df2abb17405e upstream. nft_trans_gc_queue_sync() enqueues the GC transaction and it allocates a new one. If this allocation fails, then stop this GC sync run and retry later. Fixes: 5f68718b34a5 ("netfilter: nf_tables: GC transaction API to avoid race with control plane") Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nft_set_pipapo.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/netfilter/nft_set_pipapo.c b/net/netfilter/nft_set_pipapo.c index 7248a1737ee1..83f5f276c3bf 100644 --- a/net/netfilter/nft_set_pipapo.c +++ b/net/netfilter/nft_set_pipapo.c @@ -1597,7 +1597,7 @@ static void pipapo_gc(const struct nft_set *_set, struct nft_pipapo_match *m) gc = nft_trans_gc_queue_sync(gc, GFP_ATOMIC); if (!gc) - break; + return; nft_pipapo_gc_deactivate(net, set, e); pipapo_drop(m, rulemap); -- 2.30.2