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 41BB5C4332F for ; Wed, 2 Nov 2022 03:04:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230253AbiKBDEH (ORCPT ); Tue, 1 Nov 2022 23:04:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52408 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231191AbiKBDDW (ORCPT ); Tue, 1 Nov 2022 23:03:22 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 087D5233A4 for ; Tue, 1 Nov 2022 20:03:13 -0700 (PDT) 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 dfw.source.kernel.org (Postfix) with ESMTPS id 98F2061729 for ; Wed, 2 Nov 2022 03:03:12 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3E63BC433D7; Wed, 2 Nov 2022 03:03:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1667358192; bh=9DV1yBJbFWDjW+tyYTl5Kfb31hddeO5JFrbBrE8sxLo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BtGvqizuFwE402TYpLb2qersarEn333FcEBzLaZC1r0nd3Ivk8pW8g7jpEP8k0j96 doDXzojm2X5Bt//t7dsvwuJc/s2a/DbzaNEXMXBmbt+d/40cPxeGzW0o2tOafFmlH7 i2hFw6j7fbU6dyqYwPm4VVUiCqr+f7q/UCw/wjuI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Dan Carpenter , Andy Shevchenko , Hans de Goede , Mauro Carvalho Chehab , Sasha Levin Subject: [PATCH 5.15 057/132] media: atomisp: prevent integer overflow in sh_css_set_black_frame() Date: Wed, 2 Nov 2022 03:32:43 +0100 Message-Id: <20221102022101.111391316@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221102022059.593236470@linuxfoundation.org> References: <20221102022059.593236470@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: Dan Carpenter [ Upstream commit 3ad290194bb06979367622e47357462836c1d3b4 ] The "height" and "width" values come from the user so the "height * width" multiplication can overflow. Link: https://lore.kernel.org/r/YxBBCRnm3mmvaiuR@kili Fixes: a49d25364dfb ("staging/atomisp: Add support for the Intel IPU v2") Signed-off-by: Dan Carpenter Reviewed-by: Andy Shevchenko Signed-off-by: Hans de Goede Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin --- drivers/staging/media/atomisp/pci/sh_css_params.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/staging/media/atomisp/pci/sh_css_params.c b/drivers/staging/media/atomisp/pci/sh_css_params.c index ccc007879564..deecffd438ae 100644 --- a/drivers/staging/media/atomisp/pci/sh_css_params.c +++ b/drivers/staging/media/atomisp/pci/sh_css_params.c @@ -962,8 +962,8 @@ sh_css_set_black_frame(struct ia_css_stream *stream, params->fpn_config.data = NULL; } if (!params->fpn_config.data) { - params->fpn_config.data = kvmalloc(height * width * - sizeof(short), GFP_KERNEL); + params->fpn_config.data = kvmalloc(array3_size(height, width, sizeof(short)), + GFP_KERNEL); if (!params->fpn_config.data) { IA_CSS_ERROR("out of memory"); IA_CSS_LEAVE_ERR_PRIVATE(-ENOMEM); -- 2.35.1