From patchwork Fri Mar 24 12:09:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Felix Fietkau X-Patchwork-Id: 667182 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 9B423C6FD20 for ; Fri, 24 Mar 2023 12:09:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231823AbjCXMJa (ORCPT ); Fri, 24 Mar 2023 08:09:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53554 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231611AbjCXMJ2 (ORCPT ); Fri, 24 Mar 2023 08:09:28 -0400 Received: from nbd.name (nbd.name [46.4.11.11]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0469F136CC for ; Fri, 24 Mar 2023 05:09:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=nbd.name; s=20160729; h=Content-Transfer-Encoding:MIME-Version:Message-Id:Date:Subject: Cc:To:From:Sender:Reply-To:Content-Type:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=edqPWcX+G96zWJ41I+N+V/aw5XhgRf/AlL6WPK207lI=; b=Y7pzb8wyq+YSKYB0vKDEUhcITs ncH5+cY+HVI7lDmGTdmc18tKyvJ1chUfCp4ip9/ym0xpwwBdwWU10eB0kHmfT1Jz9LrsH3Yo7SpmQ EU2RqhDsLAB+FeJBhHYu64i7/QhIb9rZDoHSfj4NXfzywuMZUExQ5faki64YLbVX18JA=; Received: from p54ae9730.dip0.t-ipconnect.de ([84.174.151.48] helo=localhost.localdomain) by ds12 with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (Exim 4.94.2) (envelope-from ) id 1pfgEX-006Liq-1y; Fri, 24 Mar 2023 13:09:25 +0100 From: Felix Fietkau To: linux-wireless@vger.kernel.org Cc: johannes@sipsolutions.net Subject: [PATCH 1/3] wifi: mac80211: fix mesh forwarding Date: Fri, 24 Mar 2023 13:09:22 +0100 Message-Id: <20230324120924.38412-1-nbd@nbd.name> X-Mailer: git-send-email 2.39.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Linearize packets (needed for forwarding A-MSDU subframes). Fixes: 986e43b19ae9 ("wifi: mac80211: fix receiving A-MSDU frames on mesh interfaces") Signed-off-by: Felix Fietkau --- net/mac80211/rx.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index e8de500eb9f3..4be80c7dda95 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -2833,6 +2833,9 @@ ieee80211_rx_mesh_data(struct ieee80211_sub_if_data *sdata, struct sta_info *sta if (skb_cow_head(fwd_skb, hdrlen - sizeof(struct ethhdr))) return RX_DROP_UNUSABLE; + + if (skb_linearize(fwd_skb)) + return RX_DROP_UNUSABLE; } fwd_hdr = skb_push(fwd_skb, hdrlen - sizeof(struct ethhdr));