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 57554360EE1 for ; Thu, 21 May 2026 15:30:02 +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=1779377403; cv=none; b=D6acQg6POnwfeq9nUh03ipEL6cWTpXjcmGA/MB2HwNealcFmocoe0JD5em3iwriHOZ607FcqI7ULRIz2HYxVG28d+wi6Y/VJ6Ki2Wc0vWerHwRae0nPm94/BNAzunPZWMKd5Kbw1gmsonK3RKyMCcUJlQLTiuqQJU8C3gP0ZdgE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779377403; c=relaxed/simple; bh=Yyr9IbzLYk/ixCtNxkr7zQ0VmhDiRtgH1bmYe8tOc5k=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=iRvH2ONGis2XIjvXLTEy7PMIrnvuaZtDHyhct2yKS7dqu41zgWhqrd0zv/7O99SwvpqX7WNXFSnPohKT2JBZBQ7jb041vYQZRgG3WesTP//ejrqzuEMVHz0PL0mW22aJrQy7guSSViaHCRmKUTVrrVK8CeQ1ge1fDVo+kYyBnU8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=AUv0BR9t; 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="AUv0BR9t" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0CFD91F00A3B; Thu, 21 May 2026 15:30:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1779377402; bh=UG4NapV2txzWaDpLsyk2dRJLCWoWVPtADyWjm+9V7q0=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=AUv0BR9tIWSjq8IBQFT2wOHxF65S5W4Ibu8Dpsi6iPegUFN/N+VIpFcL6AID/h58K SmSTlK/6BTOo8rPFiF8hlyhpkV8c8K+xTjOcFPHYdahBygeCobX+sWX+FumN8Z0z5G Tf0fHISIiRh1v9iQWPk4B/QFi/9A8bMS6au4HZF80CQpVKgLea9wfO8A6/Q5wdKAWa 8ce0D2sW8EoNvQDAbYfK4dvvA5VDPg64qFJjvYBtc/DiT3q6pXTYwaLcUymR8iFV+j ZOpNjgpXsxftza2Rs7sh/KTDLE/y/AFeKEH2dLG9TDDT7LGoBOVbTxuTIOhlRrv7vV 226bpjpl/MLLg== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 1991E3930E02; Thu, 21 May 2026 15:30:13 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net v3] net: gro: don't merge zcopy skbs From: patchwork-bot+netdevbpf@kernel.org Message-Id: <177937741163.384060.17108249006950873409.git-patchwork-notify@kernel.org> Date: Thu, 21 May 2026 15:30:11 +0000 References: In-Reply-To: To: Sabrina Dubroca Cc: netdev@vger.kernel.org, huzaifas@redhat.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, asml.silence@gmail.com Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Wed, 20 May 2026 22:44:42 +0200 you wrote: > skb_gro_receive() can currently copy frags between the source and GRO > skb, without checking the zerocopy status, and in particular the > SKBFL_MANAGED_FRAG_REFS flag. > > When SKBFL_MANAGED_FRAG_REFS is set, the skb doesn't hold a reference > on the pages in shinfo->frags. Appending those frags to another skb's > frags without fixing up the page refcount can lead to UAF. > > [...] Here is the summary with links: - [net,v3] net: gro: don't merge zcopy skbs https://git.kernel.org/netdev/net/c/4db79a322db8 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html