From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wr1-f74.google.com (mail-wr1-f74.google.com [209.85.221.74]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 686CE34F491 for ; Tue, 18 Nov 2025 17:40:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.74 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763487613; cv=none; b=WmiiXvYnoXjxsqFoRl8t94myZK3cbe5PNFXGwELVZKdbgNxMHihc6X7hteXI3Gq4+q6UFzqxeLpY7qwEQ4hd3TEG4KEkP+Jm39YAvE1O80jHi+FeBrWCnpL/b5RXnkeX8GeNuzllXl5mGdNOq4VReJO1J0H4GI2kohhgoEAcS98= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763487613; c=relaxed/simple; bh=EbAVsutZ4/CI+HCfykwP2ZtRrEpwXEp3p1I/xrTWTc4=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=F9Zuvw5ho+Zm35V+XUugzIRS5ZxnPW2KqaCtFZevdGu0yKlwqaA5tNw5eIoDbYAgs/8tpTMrnEFoS6Stp7GW8/qZYLwxquC4I5+JeW9qkgpg1jKWD9JrP+MolJwpbypaRp9jUo/l7YfWMELq2bayoJ21nRLeXoFT9ShAr5BSD9A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--aliceryhl.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=2EoRCqTa; arc=none smtp.client-ip=209.85.221.74 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--aliceryhl.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="2EoRCqTa" Received: by mail-wr1-f74.google.com with SMTP id ffacd0b85a97d-42b3ed2c3e3so4120513f8f.1 for ; Tue, 18 Nov 2025 09:40:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1763487610; x=1764092410; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=oIKqnM89Ca9fsCwIEjPeKxSYjca9/TasXeedgFij2CE=; b=2EoRCqTa8p6rFcamgMxvd3XRYKYjK1FTrqG7Qu5tM8TUnWTQhWsQnw/x+fm7swa32m iFRVhPJv+REk8R2GxdwDkVnTY+c0t/UIg/eMO+lGQvbgtE6Pxsry6bOLF4uHurIsUL7b klNE9GEZuCrAb9iIFS6As9d2/Gmee4HSOnqxQJPJsyJIYs2Cic9ZjEuWh8EZpiIcRmTc 2oh6/N6hpdjwl3QqTXrtJ9gaRXeK+xaNiRWhVCpkMazgW5AOJqPQRWAbLFpY4R3+fWzn VD+Gi1ebmxUHAwjWWlJrfgz8i4oABZrD5VQ9NQUgHEFhHYDYK3+vDDkVanwnopOw0m6R nN6w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1763487610; x=1764092410; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=oIKqnM89Ca9fsCwIEjPeKxSYjca9/TasXeedgFij2CE=; b=UeMKVrSteeifPc15fYJ8z6BGjIuBjUPEo3z8ydnRCvGMj+u0FXjYesTYJ21laihFHC D7chbqFCf2h6wT9lWg18BcmjurSo3T7BvK2JqLL4xRLzEzlYvkzkjx0Ui78VXwIVeQwv 0oakriyMtE9Jo5s3US0IqVf6R/mthdug9dBgigiETw+P8DsMmmH7leEUjSN/8dAN60sm bbWlSFvNwPyaUYD6FDGdA4R7vQC8IuCzlPjbmhLpJPdhulvB4ztpYDusB/ipDRgGxjbw bDOfMc/ylp7b5dRNUNs+s3lm6M2pG7BkqzHLZLlYp582kTkj8Sv3BCWFZb87lme/3hWz aICA== X-Forwarded-Encrypted: i=1; AJvYcCXt5oNnYJtOV0PUFd2F1G50GDFx4bzgTOw8NEl8cUcfXqXVUsxsTykcV1WGP/Mq61W2VNKJ/QKnMtEszBI=@vger.kernel.org X-Gm-Message-State: AOJu0Yy3zSQaD3gUlh0dRsD3y7R3xP/h/X2aNZe/0LDGaURKlmV5+Ajf 1r/jU2Y6f+KiSiYS0lMssoUWsN8ezs8TSGJj5d+Cp3xi014Fg+ToSRVMgQeBQ3TfzTpQYT0guY4 Q/oPdnKhmOBHnOZVumg== X-Google-Smtp-Source: AGHT+IEHeik75eoi/A2H7+tYYancP1fMfuFhyBamntfcaIVcUJMOEBQ333aershlL0m0QVpCjbFszJns5o8eDfc= X-Received: from wrdk18.prod.google.com ([2002:adf:b352:0:b0:429:de3f:8272]) (user=aliceryhl job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6000:4020:b0:429:ca7f:8d70 with SMTP id ffacd0b85a97d-42b593424dcmr17733431f8f.15.1763487609673; Tue, 18 Nov 2025 09:40:09 -0800 (PST) Date: Tue, 18 Nov 2025 17:40:09 +0000 In-Reply-To: <20251118173250.2821388-1-aliceryhl@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20251118091818.152ba4fc0c8a6f3092a36fbc@linux-foundation.org> <20251118173250.2821388-1-aliceryhl@google.com> Message-ID: Subject: Re: [PATCH] uaccess: gate _copy_[to|from]_user on !INLINE_COPY_FROM_USER From: Alice Ryhl To: akpm@linux-foundation.org Cc: a.hindborg@kernel.org, alex.gaynor@gmail.com, arnd@arndb.de, bjorn3_gh@protonmail.com, boqun.feng@gmail.com, dakr@kernel.org, gary@garyguo.net, jhubbard@nvidia.com, linux-kernel@vger.kernel.org, lossin@kernel.org, ojeda@kernel.org, rust-for-linux@vger.kernel.org, tmgross@umich.edu, yury.norov@gmail.com Content-Type: text/plain; charset="utf-8" On Tue, Nov 18, 2025 at 05:32:50PM +0000, Alice Ryhl wrote: > +#ifndef INLINE_COPY_FROM_USER > extern __must_check unsigned long > _copy_to_user(void __user *, const void *, unsigned long); > +#endif Err ... this one should be INLINE_COPY_TO_USER. Alice