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 551D62E7631; Sat, 12 Sep 2026 13:52:43 +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=1789221164; cv=none; b=VpA+oC4YMYpPwyDKhSF87Jesq7uhI49MZn9/WVnoW5LvAlpglu2rILSNx9oPrvEJhBs8TQ2H0nLxJjk44KGiDYHnZlLOdqfggZWd9nkmJs9am20G72A1HbG69uCo0aY1aXFktzgGUbgzJCKEY+KKBOLj02+OzDIdIXg9QtstdTw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789221164; c=relaxed/simple; bh=4cdn8DDZcWqwrUJixU4cNkfIG1g74R2K3VmhLxaDovs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=jW8C4XM/dV2sKvHKFGykknAbxtXnvWMzmm0gkHlqRAPiP6h5//pM8ziDhcwNdEuIbqI/gGEiMPOHuOvBAGfyrhdk26cCag3+1WoELcMKLg3sh0K+gch6KGE+LFQjNV4oJPh0J+HQdkgU0zv/g0Dat+G5L2A57tsoAHl6Oi4VWvc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=vxAlHJVK; 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="vxAlHJVK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BEECF1F000FF; Sat, 12 Sep 2026 13:52:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789221163; bh=lx/8JW9TLrrF/d6s2oQa7n+r8lKMkD2QvabqF0rSlfw=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=vxAlHJVKZW4/Ol6Oi71NQRNqXKjZMAYooSUUdAgJKMjuHTozt4Qud6Gc7PwUnG7Te 9wSPZ7yK3qYSW/gIIAfWVDF9Ki8q2DgZYtJv42wBBl3F3mObpqeTESsRdXVVV9fYfs t+qulwBYIuxHLviDvaSVrrg0ilbmFv3bqqHpEkz8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, stable , Alan Stern , Andy Shevchenko Subject: [PATCH 6.6 0327/1424] usb: f_mass_storage: Bump local buffer size in fsg_common_create_luns() Date: Sat, 12 Sep 2026 08:45:59 +0200 Message-ID: <20260912065614.610279028@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260912065607.279695368@linuxfoundation.org> References: <20260912065607.279695368@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 6.6-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);