From nobody Sat Feb 7 21:14:41 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 90AFAC4707A for ; Mon, 23 May 2022 17:39:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243193AbiEWRh5 (ORCPT ); Mon, 23 May 2022 13:37:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43398 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241571AbiEWR0v (ORCPT ); Mon, 23 May 2022 13:26:51 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BC0C474DF6; Mon, 23 May 2022 10:22:02 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 65107B81212; Mon, 23 May 2022 17:13:55 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B2979C385A9; Mon, 23 May 2022 17:13:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1653326034; bh=KoZnL/bfoOswGTzV21JkUWM92+cM9p73jMe94PFGOds=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=M2cSnvPI62UVmdmh5YrvhBuwb61a4HOiYGsvnAFPR9w/7mfv1ZCTpE7PZ5+X1vZ9Q cg1MMZ0efrGU+ASicv3ig8wu/IxR+lU8pyfaQzO8glkkHZ3xSwg6ZezpSpkjX/Y1je C5HVEw+Ie9HeEHVeNVAbnXfXlHa9oaXeVOHmxSqw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jiasheng Jiang , Steffen Klassert , Sasha Levin Subject: [PATCH 5.4 45/68] net: af_key: add check for pfkey_broadcast in function pfkey_process Date: Mon, 23 May 2022 19:05:12 +0200 Message-Id: <20220523165810.033341096@linuxfoundation.org> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220523165802.500642349@linuxfoundation.org> References: <20220523165802.500642349@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Jiasheng Jiang [ Upstream commit 4dc2a5a8f6754492180741facf2a8787f2c415d7 ] If skb_clone() returns null pointer, pfkey_broadcast() will return error. Therefore, it should be better to check the return value of pfkey_broadcast() and return error if fails. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Jiasheng Jiang Signed-off-by: Steffen Klassert Signed-off-by: Sasha Levin --- net/key/af_key.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/net/key/af_key.c b/net/key/af_key.c index 2ac9560020f9..f67d3ba72c49 100644 --- a/net/key/af_key.c +++ b/net/key/af_key.c @@ -2830,8 +2830,10 @@ static int pfkey_process(struct sock *sk, struct sk_= buff *skb, const struct sadb void *ext_hdrs[SADB_EXT_MAX]; int err; =20 - pfkey_broadcast(skb_clone(skb, GFP_KERNEL), GFP_KERNEL, - BROADCAST_PROMISC_ONLY, NULL, sock_net(sk)); + err =3D pfkey_broadcast(skb_clone(skb, GFP_KERNEL), GFP_KERNEL, + BROADCAST_PROMISC_ONLY, NULL, sock_net(sk)); + if (err) + return err; =20 memset(ext_hdrs, 0, sizeof(ext_hdrs)); err =3D parse_exthdrs(skb, hdr, ext_hdrs); --=20 2.35.1