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 3F2A6313546 for ; Wed, 25 Mar 2026 13:27:36 +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=1774445256; cv=none; b=iAhPNbGEbSc6TXf7BWDb9eeJqbJ4PUeR7S1avi93e2vrGrz2l7H2uTsoi60Mq28+JUCW/7Oh4JPG4sc/C1luSPLA92/gSdau2WZ9gLrdLMM1SEn29pRQmEeYf7kO4nWKI6T1OxacRK0jm6yqIo6CHlmNELIpqT0y40GlwlBPqSo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774445256; c=relaxed/simple; bh=x4JIaXVSJJKktWTtgyDtHpmrjXtET9pKZisO7kEyCew=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type; b=WLQox6j1ULOoK043b2j6hELS26CBbmkUXv1aB4HxWzMQ+ZMZR7gSd9iDadoXet3S6HZlQjuDn02Gew0mFVTREY5Xe/JiY5YKplNCvq5+fMXDgm9NkzS9HPjT1ScF4OrdUcrD2uMMxDVtwtFv0SWJ6+AGVj/jL8pD8RVy2VMVWvA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=OB3RijE/; 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="OB3RijE/" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 33A76C4CEF7; Wed, 25 Mar 2026 13:27:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774445255; bh=x4JIaXVSJJKktWTtgyDtHpmrjXtET9pKZisO7kEyCew=; h=From:To:Cc:Subject:Date:From; b=OB3RijE/QrkaQiYEaIb2PLyJTCebc54DR6EdRyI5m+j9wAUTyrjvqOCUe0dVGtuML YiXzB2YsWFUQ7N4ND1nvL5/TjZ+vRlSNO1TMBsm8UpvRz0xB2/D9US69h6vI+LzUL+ CJSL5ZaVKy4UzTQYXbB8CJW037LmHRZXZinF4eCvkFJdnFJMQmuekwSVapJppDNiTZ Lwn90jyr/IgOuIpgr/8DSe3siYHkGrDzfZOlgybJ7klvwGQBN0BCcIxDTH4dkGI+kw C/htReXhrfp71E3M63Gm7mHUaGJaqLBv17GhoyPsVLSYUtT7lbaMuvKvzmdibnCnP7 /dT+pdCrkLY2A== 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 v5 0/2] lib/vsprintf: Fixes size check Date: Wed, 25 Mar 2026 22:27:31 +0900 Message-ID: <177444525139.185641.12184379647176430297.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 5th 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/177440550682.147866.1854734911195480940.stgit@devnote2/ In this version, negative precision is treated as zero to match the previous behavior and check the field/precision passed as string literals too[1/2]. Also, update bstr_printf() not to return negative value[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 | 54 ++++++++++++++++++++++++++++++------------------------ 1 file changed, 30 insertions(+), 24 deletions(-) -- Masami Hiramatsu (Google)