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 EAE9F26CE14 for ; Thu, 7 Aug 2025 16:04:34 +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=1754582678; cv=none; b=GUtrLj1KIc5ENZvpTS6lnM4gx7FcwK2o6aeCRsM7FmXBrwoqOSCO3ZirIn7+XHgDJIZdhkduxbJRYz9LSVcD/5lSBh2Q7zbnxNyRRELvIYRBtoAMd+ICxC4NoKRSwv2kdYyewAvsiBUPQazq3CtRQwgeepDU87egcP7IXDy7sGw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754582678; c=relaxed/simple; bh=7KIA64YDR2C/aILcbqWUWWUG2bk4V7dOWcjZD0zj8jU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=des7AM72jyK0j5SibMeZWpVwFOXnDKPkPhqbm38VLpkp9l9Ygj6z16OkF2x2sSOODSNw4iI1BoR1aUfDUvMqFgxU/K0sbMF8mljnkNX1zlD3uKo1eKSvPegvMgEZyJBWh5XjHkQHDYNcByJxMkwuo2RAyaCIni5Ymp9k+zTWOZ4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Tp7yCSZD; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="Tp7yCSZD" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 139D9C4CEEB; Thu, 7 Aug 2025 16:04:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1754582674; bh=7KIA64YDR2C/aILcbqWUWWUG2bk4V7dOWcjZD0zj8jU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Tp7yCSZD3v1gArt3RJK6NgeOpIMJ6DDOu2bTFtOmuAfKA2wuQqhPKNw9UNOlmo6Ud vP2HkS3AkZAjV7GJP8ILcGPc6FNKUwCE5kSssxXwJb0nl3qpPRrfV9ioGAWEUfs2+v VUs9sbPbiEsq+VvNVBJY9jyp/OCLezHqeOgbc8i0= Date: Thu, 7 Aug 2025 17:04:30 +0100 From: Greg KH To: bugzilla-daemon@kernel.org Cc: linux-usb@vger.kernel.org Subject: Re: [Bug 220422] New: USB: Misdecoded serial number from Dymo Twin Turbo (0922:0018) breaks multi-device support in CUPS Message-ID: <2025080747-despise-ferry-1da5@gregkh> References: Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Thu, Aug 07, 2025 at 01:46:44AM +0000, bugzilla-daemon@kernel.org wrote: > **Expected Behavior:** > The kernel should decode USB string descriptors defensively, including recovery > from common misalignment issues in UTF-16LE encoding. Devices that return > malformed descriptors should still expose unique serial numbers if the raw data > permits recovery. The device should be fixed instead, how did this device pass the USB-IF testing framework? thanks, greg k-h