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 EF2E526CE1E for ; Wed, 25 Mar 2026 02:25:11 +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=1774405512; cv=none; b=ocBDemY+uFcNv7uQO/XLgk7YCpQo3JUn7oFd7YZf/UhuybjAsuLQjPtms3q+o+JymymGuzKdvPeW9fYCvSdMfqjALck17DMU9ki8iacjMGyhKNkccC4L/5sApASVef8Cvga6VmvKGajXHLE4+d+0J4UMjuQLl3s6W8Jb/HGjkgI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774405512; c=relaxed/simple; bh=NpVkes0GP9vPdsOlgnN4x/x7TziK0LZ9EBgf0z+eGyk=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type; b=g3oUkZXzBgrjE7hLv1m7xkNYixTB/mS8A8EoS9Hq6+PFa7CuR9P1OoMFgRgGND1D+S9XLYMHMoLs633xdlVnuPJIJjI7XNJXgON07UtWDZRIhWtgkNIgWQjSA36X4vZHDNjFFyTa00vOslYRLlnF6tiOovbKJVMlC9oI7wn9GcQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=uHZdJ/yM; 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="uHZdJ/yM" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A3707C19424; Wed, 25 Mar 2026 02:25:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774405511; bh=NpVkes0GP9vPdsOlgnN4x/x7TziK0LZ9EBgf0z+eGyk=; h=From:To:Cc:Subject:Date:From; b=uHZdJ/yMQDd+3pH7hm47CD7QX3mn9CifG4xJGzVz0BqupHSGTvRXe02EFUb3TA0Qg ZppVxLqus5uRylRLZvm21da3Rooo4HwEaC2prDNwPJJppHMGKRbSEKNwNQiBJbd+Mo 1r1TSo1lLtLiI0kSDuG2y1wNpeGjRHxxddg2H60zmaQnPb/DgQefrIoi/hNX6aqgYg fkQj7O45zPmt3LiPvqvWBSzdJRk4TAhSIzMjMH9nnxZe+BV0mr0HhrU+n9/0c3KLo+ PlqZVismqRtgvW5Zl1H3SGqw5FEow/NCz5bKHURKD2yAfTLXtAHQXmiI9t7t+ejYdS 8QwIIwFPtgKaA== From: "Masami Hiramatsu (Google)" To: Petr Mladek , Steven Rostedt , Andy Shevchenko Cc: Rasmus Villemoes , Sergey Senozhatsky , Andrew Morton , David Laight , linux-kernel@vger.kernel.org Subject: [PATCH v4 0/2] lib/vsprintf: Fixes size check Date: Wed, 25 Mar 2026 11:25:06 +0900 Message-ID: <177440550682.147866.1854734911195480940.stgit@devnote2> X-Mailer: git-send-email 2.43.0 User-Agent: StGit/0.19 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Hi, Here is the 4th version of patches to fix vsnprintf(). - Fix to limit the size of width and precision. - Warn if the return size is over INT_MAX. Previous version is here; https://lore.kernel.org/all/177410406326.38798.16853803119128725972.stgit@devnote2/ In this version, do clamp() the width and precision before checking it and accept negative precision[1/3] and add Petr's Reviewed-by[2/2]. Thank you, --- Masami Hiramatsu (Google) (2): lib/vsprintf: Fix to check field_width and precision lib/vsprintf: Limit the returning size to INT_MAX lib/vsprintf.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) -- Masami Hiramatsu (Google)