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 B967A8F48; Wed, 26 Nov 2025 04:00:44 +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=1764129644; cv=none; b=u26snCiKe5QjIFIjRXrD3WopDjtiYEDLFFavcDuV0WEcseYnDjTEg+8f0Y8RiYhGgB+wMRZgbgnUp75tgr323Wsd/7xVZgvLqCPJPgWqwPq4kuTgVNzyQpR2455rOduZQ+tw/fpz2GVvGVCIux7Cksh6HlqkBR0x4WLR/dwyHdQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764129644; c=relaxed/simple; bh=+VwrPYt8E4+oQyRN9Ap2xEOh0Zp5Qg4o7SMD7OuzBx0=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=BOyc4ek7geeEopurXmSEZWcvxhLlar4Rj6zbK27SMwJL9X63HZKSg4rSNIj0AGGWuf7G5qKIvGyat5hAHjNTSHqWkVn31GkJhPoFjnmh1Rfxw7/4iy3NVIra/y/q7dizlbOMqG3WvWiLXP4LnoghpSbzimgHvl1c0qn9GDj4H+M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=uul8nKHF; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="uul8nKHF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5193FC113D0; Wed, 26 Nov 2025 04:00:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1764129644; bh=+VwrPYt8E4+oQyRN9Ap2xEOh0Zp5Qg4o7SMD7OuzBx0=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=uul8nKHFmk9ORz6ECmNhnE1UeKOFql489VTQhP0naxYx0FE+x5ec2d19NxMjW9R7m tUdLXz9D72haroALxM4XITQbPKnDT/aAyPHzrITZmradQUO/alsZXgVGnWLKUVIq3m qQ2Q19PuXkcU1xyhnyoRdkelIwEqBTD0DpctXXT/vs097U5XWBzHP9+o15uaHJea8W c0rQjOMo7crXsPujEuoYvjrQsdmI/UKXIh3HyX6skvtaicy17afSDG8dZI+90zanZL c+ot5Pq0ajB3w31/kBsCSjNFYDvmAoFk5LRfPOGdON32Rubs0FnG9z20/S7ohNILAH GSI+a92wmjIyg== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id ADF78380AA73; Wed, 26 Nov 2025 04:00:07 +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 v6] xsk: avoid data corruption on cq descriptor number From: patchwork-bot+netdevbpf@kernel.org Message-Id: <176412960651.1513924.4064352345159631206.git-patchwork-notify@kernel.org> Date: Wed, 26 Nov 2025 04:00:06 +0000 References: <20251124171409.3845-1-fmancera@suse.de> In-Reply-To: <20251124171409.3845-1-fmancera@suse.de> To: Fernando Fernandez Mancera Cc: netdev@vger.kernel.org, csmate@nop.hu, kerneljasonxing@gmail.com, maciej.fijalkowski@intel.com, bpf@vger.kernel.org, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, sdf@fomichev.me, hawk@kernel.org, daniel@iogearbox.net, ast@kernel.org, john.fastabend@gmail.com, magnus.karlsson@intel.com Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Mon, 24 Nov 2025 18:14:09 +0100 you wrote: > Since commit 30f241fcf52a ("xsk: Fix immature cq descriptor > production"), the descriptor number is stored in skb control block and > xsk_cq_submit_addr_locked() relies on it to put the umem addrs onto > pool's completion queue. > > skb control block shouldn't be used for this purpose as after transmit > xsk doesn't have control over it and other subsystems could use it. This > leads to the following kernel panic due to a NULL pointer dereference. > > [...] Here is the summary with links: - [net,v6] xsk: avoid data corruption on cq descriptor number https://git.kernel.org/netdev/net/c/0ebc27a4c67d You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html