From patchwork Thu Mar 21 00:06:33 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pablo Neira Ayuso X-Patchwork-Id: 13598289 X-Patchwork-Delegate: kuba@kernel.org Received: from mail.netfilter.org (mail.netfilter.org [217.70.188.207]) by smtp.subspace.kernel.org (Postfix) with ESMTP id E0EC4197; Thu, 21 Mar 2024 00:06:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.188.207 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710979609; cv=none; b=kGhCEKBrhVjHWjzw6fyt5giSvzbz9uQeyo5lMt1ZxVQ721CY1AF6YRVw/e/Fo8K/iYswAn2AIAHwoQenb2oxeBN2S0W4tlMFY0Zpo78vU+GYfUT/OdoqzaQ8nd/w5dOuSXpuxtwaWu8ZVVCS+o4Lo/SeTH+5uGvh55a20U2ijS0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710979609; c=relaxed/simple; bh=ZWDJNGv/fYX3DYM/IgV4AkcO6UwWPFiUHdwDGw+UIlE=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=P4LQhDNsRcHPJrNesur58rbfxNZBrea7zOqnvgHZRW1M7In5fMn9qyVw76gyVCKoIZRdWBj+x6QfKRjXSecMjEvWKlgezGEDsIbBNZuSwGl23vArlHUEPSsfeHv/FeZmMU3ADW+01UAKVbskLT+scnxhPqD4qOy8fDOgdACkWOY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=netfilter.org; spf=pass smtp.mailfrom=netfilter.org; arc=none smtp.client-ip=217.70.188.207 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=netfilter.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=netfilter.org From: Pablo Neira Ayuso To: netfilter-devel@vger.kernel.org Cc: davem@davemloft.net, netdev@vger.kernel.org, kuba@kernel.org, pabeni@redhat.com, edumazet@google.com Subject: [PATCH net 1/3] netfilter: nft_set_pipapo: release elements in clone only from destroy path Date: Thu, 21 Mar 2024 01:06:33 +0100 Message-Id: <20240321000635.31865-2-pablo@netfilter.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20240321000635.31865-1-pablo@netfilter.org> References: <20240321000635.31865-1-pablo@netfilter.org> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org Clone already always provides a current view of the lookup table, use it to destroy the set, otherwise it is possible to destroy elements twice. This fix requires: 212ed75dc5fb ("netfilter: nf_tables: integrate pipapo into commit protocol") which came after: 9827a0e6e23b ("netfilter: nft_set_pipapo: release elements in clone from abort path"). Fixes: 9827a0e6e23b ("netfilter: nft_set_pipapo: release elements in clone from abort path") Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nft_set_pipapo.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/net/netfilter/nft_set_pipapo.c b/net/netfilter/nft_set_pipapo.c index c0ceea068936..df8de5090246 100644 --- a/net/netfilter/nft_set_pipapo.c +++ b/net/netfilter/nft_set_pipapo.c @@ -2329,8 +2329,6 @@ static void nft_pipapo_destroy(const struct nft_ctx *ctx, if (m) { rcu_barrier(); - nft_set_pipapo_match_destroy(ctx, set, m); - for_each_possible_cpu(cpu) pipapo_free_scratch(m, cpu); free_percpu(m->scratch); @@ -2342,8 +2340,7 @@ static void nft_pipapo_destroy(const struct nft_ctx *ctx, if (priv->clone) { m = priv->clone; - if (priv->dirty) - nft_set_pipapo_match_destroy(ctx, set, m); + nft_set_pipapo_match_destroy(ctx, set, m); for_each_possible_cpu(cpu) pipapo_free_scratch(priv->clone, cpu);