From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 02865174EE for ; Wed, 9 Aug 2023 11:19:09 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 78023C433C8; Wed, 9 Aug 2023 11:19:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1691579948; bh=8L/TvAryEMTfA6i07lOCF+U37J9ixVgJfRQIS/3uIRo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZcHJdIlp/cak4weaqHlQcgF0AXFsHllDKiJ8ecyNYRSNSqovJDUhFkbIKElZF/oBU r0kJRP7cO1WO0VhmW15zJGuiHPoA/sgk1aA6hEZI5xKArE8jhVe5fWzvK5pAHJ1+0q EzP3T49xUk/jIXA/0ENVNWAnTvaD8gges9glhwH8= From: Greg Kroah-Hartman To: stable@vger.kernel.org, netfilter-devel@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Florian Westphal , Pablo Neira Ayuso Subject: [PATCH 4.19 133/323] netfilter: nf_tables: fix scheduling-while-atomic splat Date: Wed, 9 Aug 2023 12:39:31 +0200 Message-ID: <20230809103704.216917829@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230809103658.104386911@linuxfoundation.org> References: <20230809103658.104386911@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Florian Westphal [ 2024439bd5ceb145eeeb428b2a59e9b905153ac3 ] nf_tables_check_loops() can be called from rhashtable list walk so cond_resched() cannot be used here. Fixes: 81ea01066741 ("netfilter: nf_tables: add rescheduling points during loop detection walks") Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso Signed-off-by: Greg Kroah-Hartman --- net/netfilter/nf_tables_api.c | 4 ---- 1 file changed, 4 deletions(-) --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -7021,13 +7021,9 @@ static int nf_tables_check_loops(const s break; } } - - cond_resched(); } list_for_each_entry(set, &ctx->table->sets, list) { - cond_resched(); - if (!nft_is_active_next(ctx->net, set)) continue; if (!(set->flags & NFT_SET_MAP) ||