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 7557D299943 for ; Fri, 13 Feb 2026 20:30:16 +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=1771014616; cv=none; b=S7VLzYfSZhuY5EqQHpuaEGDZf9AeZrLY3MV0vy+0vmhbWoCehWMtPk23nXSGeIBMkp5mtBn/d3FTzrFE6t5PDWdxGgMSYo9XaoVz/d8CYB8xEZHJwqGuuTwtbSRNYldLvAJiC2p3IcU/SKqcRxxxOGlFD/DxejGZ95zCpHtHRdY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771014616; c=relaxed/simple; bh=9IjSHHjeb5WeV2EN8Zp4C11XkMOkEZrfQxagLdlYTvE=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=Nsd9WAs0ye/CSE68AWURnsesJCA58UmHlwel6NLFblGF6rHhznoNhh2K8vde4FlyU9wtEeD1g/DjEBH/S8EPW0uTAqXYVJo1+LltkDobSNaUlwya6ZTjYj8iQzzk3qBSztAG3Snc5uqG0pU52RzQC+41D9peCQ48MJmeWfNyi1I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=GbycWZte; 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="GbycWZte" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 487E8C19421; Fri, 13 Feb 2026 20:30:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1771014616; bh=9IjSHHjeb5WeV2EN8Zp4C11XkMOkEZrfQxagLdlYTvE=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=GbycWZtemwyxTvBp/o61d73mvZymRi6ywS00PFXiWlCOq5a6erlmqzpoB1PrClEKZ /ra33x8fcKj8mgfhbGQM2pTt9rzlNRiEgws/8wWq//vZQXt/j4Tz65NuKVHwgjY5Ed rTwQdA/XRjjcLgVOriicuzpe8OUt/7xai+6teUQgkUaiefjOhttJMfo59lc07twBJo Cv8IMPOi1s8c8g12xKzhZ5auTsn9hnpaQFAstR9ZSzjEb2dza3Kcr8QUeVl9XH78EI BYFPfAbHps0JSj3eA2qtQoz3h3iWl649LrUGb6v4emQdG0AHKqkwHm0wOqhk6kf1vA nacHcjBhNnOEQ== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 481E33811A44; Fri, 13 Feb 2026 20:30:11 +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 v2] ipv6: ioam: fix heap buffer overflow in __ioam6_fill_trace_data() From: patchwork-bot+netdevbpf@kernel.org Message-Id: <177101461007.2548179.1583547596044815292.git-patchwork-notify@kernel.org> Date: Fri, 13 Feb 2026 20:30:10 +0000 References: <20260211040412.86195-1-qjx1298677004@gmail.com> In-Reply-To: <20260211040412.86195-1-qjx1298677004@gmail.com> To: Qanux Cc: netdev@vger.kernel.org, justin.iurman@uliege.be, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, dsahern@kernel.org Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Wed, 11 Feb 2026 12:04:12 +0800 you wrote: > On the receive path, __ioam6_fill_trace_data() uses trace->nodelen > to decide how much data to write for each node. It trusts this field > as-is from the incoming packet, with no consistency check against > trace->type (the 24-bit field that tells which data items are > present). A crafted packet can set nodelen=0 while setting type bits > 0-21, causing the function to write ~100 bytes past the allocated > region (into skb_shared_info), which corrupts adjacent heap memory > and leads to a kernel panic. > > [...] Here is the summary with links: - [net,v2] ipv6: ioam: fix heap buffer overflow in __ioam6_fill_trace_data() https://git.kernel.org/netdev/net/c/6db8b56eed62 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html