From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 DAFBA3876C7; Mon, 24 Aug 2026 18:51:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787597472; cv=none; b=cEqe6PAzM+Ri3brfVVxo1nrE1l9PoehiVJDoqJBUlqBWb+yVBRNiQpWblqsJ6azaAp4pzabAre+PkO/mHOmZvETfwpXigSdiz/0B06G/z8jE7C76tPEpSEGRbmLAuadphQEB22KgaZ5GQmdbRByy4ajCCNEvegxkKa44499bZio= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787597472; c=relaxed/simple; bh=cV00wOoir6Fqgzg9NqvpefOXWB6l5XlhFBP4gD2U58E=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=LeEteJyelke9Wcp4EeU9QQ6YeU2JMkcwrZXUZhZpAg457mWco1g+gh1kamC6vy1A+2UkOHWHJnaGCJvtcR89ry87HM+6l4hZJNCWN90kHNJhix2R5G9bs8j7pQj6N5bdpoFFoQWc0/3CwhdSayLde43KxNzVV/uxRk+nqluYHNg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=jCanKUVZ; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="jCanKUVZ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 951B51F000E9; Mon, 24 Aug 2026 18:51:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1787597470; bh=md/bSH+bxdxaUjVhC1Vlg9S6HNsInOmb1k4KdEpVJws=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=jCanKUVZgdgH/1dIdUiZoSv4xqGi6LwfoQDIRbfElydSh3OZwcir19bEfWQFBUX75 6plflfuziUFpwR7pnNPpWQ5yBRPQRU0QjfUDa/sEI8shNPTwIK2K+Opk/jiGM4x/Sr R6dWkRI039iuqZJmqjeGzRxFTzMMrD/Gr8XJU5FpUf5GuGZYzUCBy+1i1qwssPI78/ L8mqqQXy41y1N5TIK4M9RlZid8jrnOWCoRLytZWi+cnmjdixvlZbrhEnOM4xU1Sk/D bNpHLibcMGs6h81jPZOFs+hBjyLOA35JysNvfjS6OANwrM4H6npSHu1RQdWCTspGN+ 8aNipx11JFCqg== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 5688B3924A4C; Mon, 24 Aug 2026 18:50:19 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net v2] net: qualcomm: rmnet: restore skb->dev on deaggregated frames From: patchwork-bot+netdevbpf@kernel.org Message-Id: <178759741799.3062482.15686763886179126811.git-patchwork-notify@kernel.org> Date: Mon, 24 Aug 2026 18:50:17 +0000 References: <20260820195240.1631458-1-xmei5@asu.edu> In-Reply-To: <20260820195240.1631458-1-xmei5@asu.edu> To: Xiang Mei Cc: subash.a.kasiviswanathan@oss.qualcomm.com, sean.tranchetti@oss.qualcomm.com, andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, co+4638111fe2a12980@bugs.sh Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Thu, 20 Aug 2026 12:52:40 -0700 you wrote: > rmnet_map_deaggregate() allocates each sub-frame with alloc_skb() and > leaves skb->dev NULL. __rmnet_map_ingress_handler() assigns > skb->dev = ep->egress_dev only on the data path, but a MAP command frame > is dispatched to rmnet_map_command() before that, so rmnet_map_send_ack() > runs netif_tx_lock(skb->dev) on a NULL device. An unprivileged user > reaches this by unsharing a user+net namespace, creating an rmnet link > over a tap device with INGRESS_DEAGGREGATION and INGRESS_MAP_COMMANDS, > and writing an aggregated frame carrying a flow-control command to the > tap fd. > > [...] Here is the summary with links: - [net,v2] net: qualcomm: rmnet: restore skb->dev on deaggregated frames https://git.kernel.org/netdev/net/c/a66734a1c5e3 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html