From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 98AFBC54EBE for ; Mon, 16 Jan 2023 17:09:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231958AbjAPRJG (ORCPT ); Mon, 16 Jan 2023 12:09:06 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32782 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231322AbjAPRID (ORCPT ); Mon, 16 Jan 2023 12:08:03 -0500 Received: from sin.source.kernel.org (sin.source.kernel.org [145.40.73.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F02763A59E for ; Mon, 16 Jan 2023 08:48:30 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id 699CDCE1295 for ; Mon, 16 Jan 2023 16:48:29 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 590F0C433D2; Mon, 16 Jan 2023 16:48:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1673887707; bh=hxFLs07qz9G/B6iwFdybsRh9A7QoGzJvYvpjP3a9XFA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=yf1DNqlsfamsxqCbx9BEqv02woUi44umtmfs4VvULDKY5fUPKjXoZZrJJyWp7/NGK Ctev511XBllzfWDbeTZcJ0yi9VMJqPK1BWj5T0KH5OFxmtrgaz8UvAgNvGOZgk+Lqk RdLO2HGzPHPcZu4IWlBrtOliuAuAnkQ6kyh9FPJI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Alan Stern , Jiasheng Jiang , Sasha Levin Subject: [PATCH 4.19 251/521] usb: storage: Add check for kcalloc Date: Mon, 16 Jan 2023 16:48:33 +0100 Message-Id: <20230116154858.368574726@linuxfoundation.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230116154847.246743274@linuxfoundation.org> References: <20230116154847.246743274@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Jiasheng Jiang [ Upstream commit c35ca10f53c51eeb610d3f8fbc6dd6d511b58a58 ] As kcalloc may return NULL pointer, the return value should be checked and return error if fails as same as the ones in alauda_read_map. Fixes: e80b0fade09e ("[PATCH] USB Storage: add alauda support") Acked-by: Alan Stern Signed-off-by: Jiasheng Jiang Link: https://lore.kernel.org/r/20221208110058.12983-1-jiasheng@iscas.ac.cn Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/usb/storage/alauda.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/storage/alauda.c b/drivers/usb/storage/alauda.c index 6b8edf6178df..6fcf5fd2ff98 100644 --- a/drivers/usb/storage/alauda.c +++ b/drivers/usb/storage/alauda.c @@ -437,6 +437,8 @@ static int alauda_init_media(struct us_data *us) + MEDIA_INFO(us).blockshift + MEDIA_INFO(us).pageshift); MEDIA_INFO(us).pba_to_lba = kcalloc(num_zones, sizeof(u16*), GFP_NOIO); MEDIA_INFO(us).lba_to_pba = kcalloc(num_zones, sizeof(u16*), GFP_NOIO); + if (MEDIA_INFO(us).pba_to_lba == NULL || MEDIA_INFO(us).lba_to_pba == NULL) + return USB_STOR_TRANSPORT_ERROR; if (alauda_reset_media(us) != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_ERROR; -- 2.35.1