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 010D238AC92; Sat, 12 Sep 2026 15:44:57 +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=1789227898; cv=none; b=F6NCJM62EMMHXWuBUJllgtrFXVrc6cWQdA8RIVsdl4KSRlPegumWV5D26FEvCPnLIQ6X1hLEEXeQLehih7Om6RlpF92jHPftKxHepq165ZzJK8hTI15czEZfgueA+E4ay1gktwEghlsXZgtq1fr4rGMzjbV5wJXe5BTv8efnIf4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789227898; c=relaxed/simple; bh=Pb/4WoI02urSMmN2URGqmRy2n6d8gsIiBhItF66Ty+Y=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=j7a+VXQ8lXTCiueszgdOinUUA4D5ot4nXDNVbcFaTN5zI8nTtCvrlMhM7kjnRJtIZ2S2rMmp5GilxnR40zY2sm+BpT1VkhfGQ9ujTL05faWK/gJX2rMom9876OAQ4zTACM0GiP9v9UR5ozJ0YP0YCCqJIw3Cwqjr1g3hGeKs/VA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=SD/2K2LH; 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="SD/2K2LH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9D58D1F000FF; Sat, 12 Sep 2026 15:44:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789227896; bh=ty8ECq1KKVTAWzN4aFRNTPEXbgI4QlS3FbRF7uUkLP0=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=SD/2K2LHAfNPKwvhIjXNNxyNdCd+ue68dHzYun85PqM+i1i/ipUUw/+HJ60eOdakp f2yeAb5QxfoEeAoF/vk9//vPTHCRZb8ZTlLkK0OPW/Gm+I8LWzotcnUi0XmfMu5Epw KRRmknfr/kLAgzlSXXpNpY2UjywJZ47bVXYGygBI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, stable , Alan Stern , Andy Shevchenko Subject: [PATCH 6.1 0274/1191] usb: f_mass_storage: Bump local buffer size in fsg_common_create_luns() Date: Sat, 12 Sep 2026 08:50:02 +0200 Message-ID: <20260912065554.380278863@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260912065548.086904252@linuxfoundation.org> References: <20260912065548.086904252@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 6.1-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 @@ -2964,7 +2964,7 @@ 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);