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 4EF6F3E2777; Mon, 18 May 2026 08:25:37 +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=1779092737; cv=none; b=m6vAzfDDunC8jRvUbUKhJQZwO9fwJe7FTfzmaakUqchBri2K+D4kKQZoCsC2Gj2pW0R9KT80IEHY7ZRiqfWaR8I0z3rhuwGBq+wlmJmhNqpca/G1Zxrqn4SLHYL9BPBEBT9UgGhNAaVS0g4MLJPSYQrOMgDAZMJ0ITrME+bA15I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779092737; c=relaxed/simple; bh=dLOm69gQbw+yPFjzKhXWb6owlkPXwo1xmuTC823sFfk=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=ikWIkhRtk5CEjGY86dkJh8cFokJiH12CYX3mrQ4QRWEaLXGj2avqH5KWAngo62ZYQQT+dmztwMjd89bOSKzQfy94gfwcwGR/ARQrG8N8larWzDRMUJmSWYIJTkAyBekWS76cZi4FM/SWOpNKKdS8Xu6Bz7Ca4yL7p/mUDx2RCwQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=k3gUlZHH; 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="k3gUlZHH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6DD87C2BCB7; Mon, 18 May 2026 08:25:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1779092737; bh=dLOm69gQbw+yPFjzKhXWb6owlkPXwo1xmuTC823sFfk=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=k3gUlZHH1ifI6YBRuLpXeTzk2ozQpO3HESBwtwC8zpFiMZPh9iSXOOjoeoAaMFs4J QFjwSv1Jc7GcoCdpHILGpZi2i/L9xorwzK4mv6pA99xq2ji1nL9rOtSQbSXnMtxlyE DXZS0rubhcA1vIIdpMaeYak/e1ryZyQZ1R2h3xohGw8dFdHu9kaDY0EjyAcOAilxQO sX3v1xtJUSkFrPbICsJN9yBLCvVRx+ELYK2mUA959RLZseZ5nLwunVSxfNP2YeHzT3 BvPoKfoH+ulOykGosZ2h13s/VxRtgeb2tSg4XO2smjJB/3q623uNjtTMaTLypKxMel 6dRhI6tdtAE4g== Message-ID: Date: Mon, 18 May 2026 10:25:33 +0200 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/2] can: peak_usb: validate URB length in pcan_usb_fd_decode_buf() To: Berkant Koc Cc: Marc Kleine-Budde , Stephane Grosjean , linux-can@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de, stable@vger.kernel.org References: <20260517-can-usb-fix-cover@berkoc.com> <20260517-can-usb-fix-1@berkoc.com> <177906591253.919135.13839066904083701982@berkoc.com> From: Vincent Mailhol Content-Language: en-US Autocrypt: addr=mailhol@kernel.org; keydata= xjMEZluomRYJKwYBBAHaRw8BAQdAf+/PnQvy9LCWNSJLbhc+AOUsR2cNVonvxhDk/KcW7FvN JFZpbmNlbnQgTWFpbGhvbCA8bWFpbGhvbEBrZXJuZWwub3JnPsKZBBMWCgBBFiEE7Y9wBXTm fyDldOjiq1/riG27mcIFAmdfB/kCGwMFCQp/CJcFCwkIBwICIgIGFQoJCAsCBBYCAwECHgcC F4AACgkQq1/riG27mcKBHgEAygbvORJOfMHGlq5lQhZkDnaUXbpZhxirxkAHwTypHr4A/joI 2wLjgTCm5I2Z3zB8hqJu+OeFPXZFWGTuk0e2wT4JzjgEZx4y8xIKKwYBBAGXVQEFAQEHQJrb YZzu0JG5w8gxE6EtQe6LmxKMqP6EyR33sA+BR9pLAwEIB8J+BBgWCgAmFiEE7Y9wBXTmfyDl dOjiq1/riG27mcIFAmceMvMCGwwFCQPCZwAACgkQq1/riG27mcJU7QEA+LmpFhfQ1aij/L8V zsZwr/S44HCzcz5+jkxnVVQ5LZ4BANOCpYEY+CYrld5XZvM8h2EntNnzxHHuhjfDOQ3MAkEK In-Reply-To: <177906591253.919135.13839066904083701982@berkoc.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 18/05/2026 at 02:58, Berkant Koc wrote: > Vincent, fair, my earlier "custom CVE-hunter setup" was too thin. > Here's the fuller picture. > > Tooling: berkoc-pipeline, a custom RAG framework on Claude Opus 4.7 > (Anthropic CVP cohort, May 2026). Full agentic stack: multi-tool > execution (filesystem, web fetch, code execution), parallel subagent > orchestration with adaptive task decomposition, extended-thinking > integration, retrieval-augmented context over a file-based semantic > knowledge base, MCP-style integration patterns. 7-step pre-disclosure > validation gate, manual verification on every finding before submit. Your message doesn't follow the mailing list etiquette: Link: https://subspace.kernel.org/etiquette.html Relevant part: kernel mailing lists exclusively require that all communication is sent as interleaved quoted replies. Is this answer also AI generated? If yes, please don't directly copy paste AI answers to the mailing list. We expect you to add value to the AI generated output. Regardless if this was AI generated or not, take time to familiarize yourself with the kernel processes. Reading a couple of the past threads in the mailing list is a good way to understand the expectations. > v2 of this patch will include the formal trailer: > Assisted-by: Claude:claude-opus-4-7 berkoc-pipeline Ack. Please use that tag. > For the peak_usb finding specifically: seeded with reference commit > 6fe9f3279f7d ("can: gs_usb: gs_usb_receive_bulk_callback(): check > actual_length before accessing header"), scanned drivers/net/can/usb/ > for the "actual_length verified before header dereference" pattern, > candidate sites surfaced by the model, then manual verification with > a reproducer harness (synthetic short URB, walk through msg_ptr/msg_end > bounds) before the report went out. > > Happy to formalise as `Assisted-by: Claude:claude-opus-4-7 > berkoc-pipeline` trailer in v2 if you'd prefer, or drop the methodology > into a follow-up note. Yours sincerely, Vincent Mailhol