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 8C4FC3D0D1; Tue, 14 May 2024 11:53:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715687630; cv=none; b=pmK8YWiOQgGc5khxUmW+CXczkM3DY3h1VCihNSSyjM0zvkN6p7Dkt/JxuoaJ0vqd7C5oilu+Mng83G3Db0P2csXOHH/uXr/yamqO/+zB4BwGCWNHS2RVnfPjHN70exejgzbV6RwT8mHEaQ3FrlIlN8Rg15+AzyzyfWcbl+0BgGo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715687630; c=relaxed/simple; bh=ZMIh/OewVmsji4M2ZiKPjebkPKob2W/pMEnkbU6Wttw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=hJlekzpyKaM6z8Av/oeE2DHcegSB0HmiNg7JappOXjQoGLzGIBU21bUQdqLss66Xq090U9AXSZ6TzL7y1mIEwAO1MVNLxwAYjMRgHUKlfZMOeCKZRsvJhBlLbgPVmFtMWiYQuFKhKg4xBMM497uGapgcxWulmdPC39j+eHpqTZ0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=p9E51umB; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="p9E51umB" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B02ACC2BD10; Tue, 14 May 2024 11:53:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1715687630; bh=ZMIh/OewVmsji4M2ZiKPjebkPKob2W/pMEnkbU6Wttw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=p9E51umB1ZlQXxuyRomDLQyUZm7oYjmAxMmQjOp6kzzah2TshL+SxwUMEFbTP+ZBC 1/7z9MeWcFTjDHLcsR9hQLH29e8x0XkgwH0EVEd8guW1Ver0XtN8U+KO1zQj+BiS8S hIkQBwz/UDNp6U3pcUJWEkdia1KhpUcA4pJyrl1c= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Felix Fietkau , Paolo Abeni , Nikolay Aleksandrov , "David S. Miller" , Sasha Levin Subject: [PATCH 5.15 051/168] net: bridge: fix multicast-to-unicast with fraglist GSO Date: Tue, 14 May 2024 12:19:09 +0200 Message-ID: <20240514101008.617080147@linuxfoundation.org> X-Mailer: git-send-email 2.45.0 In-Reply-To: <20240514101006.678521560@linuxfoundation.org> References: <20240514101006.678521560@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Felix Fietkau [ Upstream commit 59c878cbcdd80ed39315573b3511d0acfd3501b5 ] Calling skb_copy on a SKB_GSO_FRAGLIST skb is not valid, since it returns an invalid linearized skb. This code only needs to change the ethernet header, so pskb_copy is the right function to call here. Fixes: 6db6f0eae605 ("bridge: multicast to unicast") Signed-off-by: Felix Fietkau Acked-by: Paolo Abeni Acked-by: Nikolay Aleksandrov Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- net/bridge/br_forward.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/bridge/br_forward.c b/net/bridge/br_forward.c index 011bd3c59da19..0bdd2892646db 100644 --- a/net/bridge/br_forward.c +++ b/net/bridge/br_forward.c @@ -261,7 +261,7 @@ static void maybe_deliver_addr(struct net_bridge_port *p, struct sk_buff *skb, if (skb->dev == p->dev && ether_addr_equal(src, addr)) return; - skb = skb_copy(skb, GFP_ATOMIC); + skb = pskb_copy(skb, GFP_ATOMIC); if (!skb) { DEV_STATS_INC(dev, tx_dropped); return; -- 2.43.0