From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 2BD08237180; Wed, 9 Sep 2026 14:14:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788963260; cv=none; b=kszsLJw3Q5t8Wta42uo+r2uUs7QTYrZXibz3mzMkQXTv7V3BP5Nwe1RmiLTbHkBmid90Bbl1v9zzfAfm2OPR2b3vYCzGbxul5vtVHOkKHElM5XfT8S4PPf9dCJj00RrI/KZvSBWRWDjheOUapOZ5ozB7FGTvdkxsgmXQwbl3Png= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788963260; c=relaxed/simple; bh=/Envc1M4TTcnJp5YP+dScfPxFhgwR6Ho7sZR7r2VWe8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=timJw2G1jCdSHo+Nc+yzrtTpUPndd9y6WTpkfc20m0+lDiZP3w3hz4+BJxk9lhfdITMVtOuU4UYEfJcYVe+buR+Of8X5R7XIl0MK02lwUVwJVTtKajCzKc1uj07JNtU2QUXGmQa1Ey00L5q3Lc52cVCj9XWU3+6ZyywOUHBBKOA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=eR5Mk9RN; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="eR5Mk9RN" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3E9041F00A3A; Wed, 9 Sep 2026 14:14:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1788963258; bh=0Aiv8hnS2kKRmh/6azW67nhDMFeoyXwHzCD5i+kbv3U=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=eR5Mk9RNSSpzHQhxPygTWxbdXoVq76c4US2Vdq0Yvh9DD+9sqRYLjSvNu0Th8GpEN anj0DTDDGy0AdIto1PFBEgMQbPg3iKPnT9TtSGZYKyoTf+vtP6jxVgEJ0XSJQwexIo NMsBUJ1Mt+tflkTKfQjfTr2btyv+BFl2MNpxofu8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, stable , Alan Stern , Andy Shevchenko Subject: [PATCH 6.18 018/583] usb: f_mass_storage: Bump local buffer size in fsg_common_create_luns() Date: Wed, 9 Sep 2026 15:35:03 +0200 Message-ID: <20260909134238.447057311@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260909134237.773280130@linuxfoundation.org> References: <20260909134237.773280130@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Andy Shevchenko commit 9f6f095beec82a80daa666a3b2186a5b95841e9a upstream. GCC (Debian 14.2.0-19) is not happy about the buffer size: drivers/usb/gadget/function/f_mass_storage.c:2970:48: error: ‘%d’ directive output may be truncated writing between 1 and 9 bytes into a region of size 5 [-Werror=format-truncation=] Bump the size to get it enough for all possible values. Note, although cfg->nluns is limited to FSG_MAX_LUNS (16), the compiler doesn't realize this and complains about the buffer size. Also note, the existing comment is wrong as size 8 for the whole buffer doesn't cover 100 mil numbers, hence drop it altogether. Fixes: b27c08c953e9 ("usb: gadget: f_mass_storage: create lun creation helpers for use in fsg_common_init") Cc: stable Acked-by: Alan Stern Signed-off-by: Andy Shevchenko Link: https://patch.msgid.link/20260817161239.1448582-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/function/f_mass_storage.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/usb/gadget/function/f_mass_storage.c +++ b/drivers/usb/gadget/function/f_mass_storage.c @@ -2961,7 +2961,7 @@ EXPORT_SYMBOL_GPL(fsg_common_create_lun) int fsg_common_create_luns(struct fsg_common *common, struct fsg_config *cfg) { - char buf[8]; /* enough for 100000000 different numbers, decimal */ + char buf[14]; int i, rc; fsg_common_remove_luns(common);