From nobody Sun Nov 24 14:36:56 2024 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 7B9B6EB64DD for ; Thu, 10 Aug 2023 02:26:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232171AbjHJC0B (ORCPT ); Wed, 9 Aug 2023 22:26:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32846 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229501AbjHJCZ7 (ORCPT ); Wed, 9 Aug 2023 22:25:59 -0400 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A1D681999; Wed, 9 Aug 2023 19:25:58 -0700 (PDT) Received: from pps.filterd (m0279867.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 37A2Pa9T028958; Thu, 10 Aug 2023 02:25:45 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=qcppdkim1; bh=fybLsQntBjDPeIINYbmncAJXzI627HXW3R0ZrjRa2fg=; b=R9v4bwZ2Ec7+Y7USOvYOhIOX7akrPTserUD10lc8FF+Gt6OPJkQCOpnxH8WekgWZ7rzP A01ooGTa2j1V/xcUIyXzj5oQcr+YWf+zcqOq/s1EGWvxqDRBpcpTjL/4YbrCkuOUtzTN y2WD3E3mv23aNn7r2woXu5ICIKIvLIEBrpjtr0UGDh7d9H/XCP4ijblpUlDwM7znEm4s 3gCZkjbM/XeeCa6b7TPqW14kdipUzPXw08vWYruPp5e6ok94bYobo3wnLWZlZu4OER2n boGtdklLhfZlQkrhBlmPRLL9j9R+7Pb1PPuf+eThNkrC/hLU367pzAxlNnvjpX6280qs /Q== Received: from nasanppmta03.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3sbmrqm84w-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 10 Aug 2023 02:25:44 +0000 Received: from nasanex01a.na.qualcomm.com (nasanex01a.na.qualcomm.com [10.52.223.231]) by NASANPPMTA03.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 37A2PiAK011953 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 10 Aug 2023 02:25:44 GMT Received: from hu-vgarodia-hyd.qualcomm.com (10.80.80.8) by nasanex01a.na.qualcomm.com (10.52.223.231) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.30; Wed, 9 Aug 2023 19:25:40 -0700 From: Vikash Garodia To: , , , , , , , CC: , , , , Vikash Garodia Subject: [PATCH v2 1/4] venus: hfi: add checks to perform sanity on queue pointers Date: Thu, 10 Aug 2023 07:55:01 +0530 Message-ID: <1691634304-2158-2-git-send-email-quic_vgarodia@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1691634304-2158-1-git-send-email-quic_vgarodia@quicinc.com> References: <1691634304-2158-1-git-send-email-quic_vgarodia@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nasanex01a.na.qualcomm.com (10.52.223.231) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: OSnrjtdp5uGQiV8Z9Wc4K0Kz8tqYjBvi X-Proofpoint-ORIG-GUID: OSnrjtdp5uGQiV8Z9Wc4K0Kz8tqYjBvi X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-08-10_01,2023-08-09_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 malwarescore=0 adultscore=0 mlxscore=0 suspectscore=0 phishscore=0 mlxlogscore=769 impostorscore=0 priorityscore=1501 clxscore=1015 bulkscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2308100019 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Read and write pointers are used to track the packet index in the memory shared between video driver and firmware. There is a possibility of OOB access if the read or write pointer goes beyond the queue memory size. Add checks for the read and write pointer to avoid OOB access. Cc: stable@vger.kernel.org Fixes: d96d3f30c0f2 ("[media] media: venus: hfi: add Venus HFI files") Signed-off-by: Vikash Garodia --- drivers/media/platform/qcom/venus/hfi_venus.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/media/platform/qcom/venus/hfi_venus.c b/drivers/media/= platform/qcom/venus/hfi_venus.c index f0b4638..4ddabb1 100644 --- a/drivers/media/platform/qcom/venus/hfi_venus.c +++ b/drivers/media/platform/qcom/venus/hfi_venus.c @@ -206,6 +206,11 @@ static int venus_write_queue(struct venus_hfi_device *= hdev, =20 new_wr_idx =3D wr_idx + dwords; wr_ptr =3D (u32 *)(queue->qmem.kva + (wr_idx << 2)); + + if (wr_ptr < (u32 *)queue->qmem.kva || + wr_ptr > (u32 *)(queue->qmem.kva + queue->qmem.size - sizeof(*wr_ptr)= )) + return -EINVAL; + if (new_wr_idx < qsize) { memcpy(wr_ptr, packet, dwords << 2); } else { @@ -273,6 +278,11 @@ static int venus_read_queue(struct venus_hfi_device *h= dev, } =20 rd_ptr =3D (u32 *)(queue->qmem.kva + (rd_idx << 2)); + + if (rd_ptr < (u32 *)queue->qmem.kva || + rd_ptr > (u32 *)(queue->qmem.kva + queue->qmem.size - sizeof(*rd_ptr)= )) + return -EINVAL; + dwords =3D *rd_ptr >> 2; if (!dwords) return -EINVAL; --=20 2.7.4 From nobody Sun Nov 24 14:36:56 2024 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 4FF75C04E69 for ; Thu, 10 Aug 2023 02:26:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231228AbjHJC0M (ORCPT ); Wed, 9 Aug 2023 22:26:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40286 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232324AbjHJC0K (ORCPT ); Wed, 9 Aug 2023 22:26:10 -0400 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C26D2211B; Wed, 9 Aug 2023 19:26:04 -0700 (PDT) Received: from pps.filterd (m0279866.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 37A1iIhE005236; Thu, 10 Aug 2023 02:25:50 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=qcppdkim1; bh=2oTMgX4OQS2lmRYb6mhrixFvv6JGwYf/kL8q1sU/r9M=; b=Wpyudwoj3DKKKu7qauqQonaQ36U2rMNj0ghEvAUx7YcoYkk0i3ok0eOrKrnalcO33D6G Y+CwmkNqx9TEN6zurOHPehHohxp+25pLTUQvdjw2FPbNDzaL3XODuvqkh5s6OCkUsCfs G6xdvKIY1PQNlcxMokU/npS1prMPelf0TqyuHPnWXxJYvplDSZxIG19AXo81F9iCzAFE 11NI194qquQVsQ+a0IUZeS8kXmObxwZYl8RAutI+DiQaY40n+LBfTKNMu3rn1OicOSQp RPKlG7LZzhu0dUQ9M63uOdDpVvF4rM9FbIX0r/iNFHol8ADrvCKuzRz3OFNcj9ihH3CM WA== Received: from nasanppmta05.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3sch7crgxv-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 10 Aug 2023 02:25:50 +0000 Received: from nasanex01a.na.qualcomm.com (nasanex01a.na.qualcomm.com [10.52.223.231]) by NASANPPMTA05.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 37A2PnCQ019397 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 10 Aug 2023 02:25:49 GMT Received: from hu-vgarodia-hyd.qualcomm.com (10.80.80.8) by nasanex01a.na.qualcomm.com (10.52.223.231) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.30; Wed, 9 Aug 2023 19:25:45 -0700 From: Vikash Garodia To: , , , , , , , CC: , , , , Vikash Garodia Subject: [PATCH v2 2/4] venus: hfi: fix the check to handle session buffer requirement Date: Thu, 10 Aug 2023 07:55:02 +0530 Message-ID: <1691634304-2158-3-git-send-email-quic_vgarodia@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1691634304-2158-1-git-send-email-quic_vgarodia@quicinc.com> References: <1691634304-2158-1-git-send-email-quic_vgarodia@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nasanex01a.na.qualcomm.com (10.52.223.231) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: 1xTf4V96M7poeYWwhndFerb0Ss9mWa4S X-Proofpoint-GUID: 1xTf4V96M7poeYWwhndFerb0Ss9mWa4S X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-08-10_01,2023-08-09_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 spamscore=0 priorityscore=1501 lowpriorityscore=0 suspectscore=0 impostorscore=0 mlxlogscore=999 mlxscore=0 adultscore=0 malwarescore=0 clxscore=1015 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2308100019 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Buffer requirement, for different buffer type, comes from video firmware. While copying these requirements, there is an OOB possibility when the payload from firmware is more than expected size. Fix the check to avoid the OOB possibility. Cc: stable@vger.kernel.org Fixes: 09c2845e8fe4 ("[media] media: venus: hfi: add Host Firmware Interfac= e (HFI)") Reviewed-by: Nathan Hebert Signed-off-by: Vikash Garodia Reviewed-by: Bryan O'Donoghue --- drivers/media/platform/qcom/venus/hfi_msgs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/platform/qcom/venus/hfi_msgs.c b/drivers/media/p= latform/qcom/venus/hfi_msgs.c index 3d5dadf..3e85bd8 100644 --- a/drivers/media/platform/qcom/venus/hfi_msgs.c +++ b/drivers/media/platform/qcom/venus/hfi_msgs.c @@ -398,7 +398,7 @@ session_get_prop_buf_req(struct hfi_msg_session_propert= y_info_pkt *pkt, memcpy(&bufreq[idx], buf_req, sizeof(*bufreq)); idx++; =20 - if (idx > HFI_BUFFER_TYPE_MAX) + if (idx >=3D HFI_BUFFER_TYPE_MAX) return HFI_ERR_SESSION_INVALID_PARAMETER; =20 req_bytes -=3D sizeof(struct hfi_buffer_requirements); --=20 2.7.4 From nobody Sun Nov 24 14:36:56 2024 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 162D8C41513 for ; Thu, 10 Aug 2023 02:26:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232346AbjHJC0E (ORCPT ); Wed, 9 Aug 2023 22:26:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47894 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231787AbjHJC0B (ORCPT ); Wed, 9 Aug 2023 22:26:01 -0400 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 44AF31BCF; Wed, 9 Aug 2023 19:26:01 -0700 (PDT) Received: from pps.filterd (m0279870.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 37A2JCqQ010471; Thu, 10 Aug 2023 02:25:56 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=qcppdkim1; bh=Id3qv/5ZcdycMZ8v5o4bZF4k+g39Mbe/s38TYj1GJkI=; b=iag/iiCz3X8WQ/KoASNhlaMyNTqnMunQxUNIg0xU5ls+avuv9rlKn1bJxTxxV65RMnKr 0cggecLiUekr85WOD9KCbdHCLApX7F4WPwk8tWnbgFtUyb3BRwh7AmeH7EvAiNkeSplW zwAU5051GVPns+VM4GuSuIPGMcW9pR675gEtRG6uwZJkf4wT7BwjLtdCKI3XyLBly6+h wdxwMWE3zQmckX+byqpzEAvyC7SFEsLxFytKYVCgepojev3ls3q7ebkIQHvHcc0XB2pX lhYHeElQrwsY3NyNbM567ai/ziTDnFj+PFSXazzDiDTWMB4TD1Qql/2R4EfbvPDixvln rQ== Received: from nasanppmta02.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3scnsf83v5-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 10 Aug 2023 02:25:56 +0000 Received: from nasanex01a.na.qualcomm.com (nasanex01a.na.qualcomm.com [10.52.223.231]) by NASANPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 37A2Ptg6010223 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 10 Aug 2023 02:25:55 GMT Received: from hu-vgarodia-hyd.qualcomm.com (10.80.80.8) by nasanex01a.na.qualcomm.com (10.52.223.231) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.30; Wed, 9 Aug 2023 19:25:51 -0700 From: Vikash Garodia To: , , , , , , , CC: , , , , Vikash Garodia Subject: [PATCH v2 3/4] venus: hfi: add checks to handle capabilities from firmware Date: Thu, 10 Aug 2023 07:55:03 +0530 Message-ID: <1691634304-2158-4-git-send-email-quic_vgarodia@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1691634304-2158-1-git-send-email-quic_vgarodia@quicinc.com> References: <1691634304-2158-1-git-send-email-quic_vgarodia@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nasanex01a.na.qualcomm.com (10.52.223.231) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: ilFCVncCkjlMY-_iU9vbPejh-4ZgEk8J X-Proofpoint-ORIG-GUID: ilFCVncCkjlMY-_iU9vbPejh-4ZgEk8J X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-08-10_01,2023-08-09_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 bulkscore=0 impostorscore=0 mlxscore=0 spamscore=0 lowpriorityscore=0 adultscore=0 mlxlogscore=999 malwarescore=0 priorityscore=1501 clxscore=1015 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2308100019 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The hfi parser, parses the capabilities received from venus firmware and copies them to core capabilities. Consider below api, for example, fill_caps - In this api, caps in core structure gets updated with the number of capabilities received in firmware data payload. If the same api is called multiple times, there is a possibility of copying beyond the max allocated size in core caps. Similar possibilities in fill_raw_fmts and fill_profile_level functions. Cc: stable@vger.kernel.org Fixes: 1a73374a04e5 ("media: venus: hfi_parser: add common capability parse= r") Signed-off-by: Vikash Garodia --- drivers/media/platform/qcom/venus/hfi_parser.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/media/platform/qcom/venus/hfi_parser.c b/drivers/media= /platform/qcom/venus/hfi_parser.c index 6cf74b2..9d6ba22 100644 --- a/drivers/media/platform/qcom/venus/hfi_parser.c +++ b/drivers/media/platform/qcom/venus/hfi_parser.c @@ -86,6 +86,9 @@ static void fill_profile_level(struct hfi_plat_caps *cap,= const void *data, { const struct hfi_profile_level *pl =3D data; =20 + if (cap->num_pl + num >=3D HFI_MAX_PROFILE_COUNT) + return; + memcpy(&cap->pl[cap->num_pl], pl, num * sizeof(*pl)); cap->num_pl +=3D num; } @@ -111,6 +114,9 @@ fill_caps(struct hfi_plat_caps *cap, const void *data, = unsigned int num) { const struct hfi_capability *caps =3D data; =20 + if (cap->num_caps + num >=3D MAX_CAP_ENTRIES) + return; + memcpy(&cap->caps[cap->num_caps], caps, num * sizeof(*caps)); cap->num_caps +=3D num; } @@ -137,6 +143,9 @@ static void fill_raw_fmts(struct hfi_plat_caps *cap, co= nst void *fmts, { const struct raw_formats *formats =3D fmts; =20 + if (cap->num_fmts + num_fmts >=3D MAX_FMT_ENTRIES) + return; + memcpy(&cap->fmts[cap->num_fmts], formats, num_fmts * sizeof(*formats)); cap->num_fmts +=3D num_fmts; } @@ -159,6 +168,9 @@ parse_raw_formats(struct venus_core *core, u32 codecs, = u32 domain, void *data) rawfmts[i].buftype =3D fmt->buffer_type; i++; =20 + if (i >=3D MAX_FMT_ENTRIES) + return; + if (pinfo->num_planes > MAX_PLANES) break; =20 --=20 2.7.4 From nobody Sun Nov 24 14:36:56 2024 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 14B00C001B0 for ; Thu, 10 Aug 2023 02:26:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232380AbjHJC0R (ORCPT ); Wed, 9 Aug 2023 22:26:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40418 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232363AbjHJC0O (ORCPT ); Wed, 9 Aug 2023 22:26:14 -0400 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0F9AA2132; Wed, 9 Aug 2023 19:26:07 -0700 (PDT) Received: from pps.filterd (m0279871.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 37A27wbd013577; Thu, 10 Aug 2023 02:26:03 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=qcppdkim1; bh=qnnfa/E2csSoEJfzcMjz6VRCrhnXshNrlw1QRh2X2YU=; b=ggcipcEMktPwU5XxEfwvspOlXm1GSbPGBkV62okWvwekGlEeh8zs06blBJnFiDCdVnmV aV9YqxdBB+gdOLekoGwIZzwLhVQxDbuUzQWqs42P6D0nzDJMLEd12Jff62ghp1uofjAt Mq7pgDUlNstjyAwjZUGEhY947db1qkZtHPeANXejQUka0cHuRxu0yAmmpX/fyAZDDGbW ie3iTVh0efBPqx5/TvAJePMcNPqFuxJUh4kfoaHppUI2hIM86/JDHecTi9oelHV0cmHv X7cwpdVd9WCw3gXXqGCEZeqCbDAUx4YOOTJYLeis3qwtekqGO53A+nY3zyn0rfNFJEVz Tg== Received: from nasanppmta01.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3scbcghbrn-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 10 Aug 2023 02:26:03 +0000 Received: from nasanex01a.na.qualcomm.com (nasanex01a.na.qualcomm.com [10.52.223.231]) by NASANPPMTA01.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 37A2Q0Jd008904 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 10 Aug 2023 02:26:00 GMT Received: from hu-vgarodia-hyd.qualcomm.com (10.80.80.8) by nasanex01a.na.qualcomm.com (10.52.223.231) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.30; Wed, 9 Aug 2023 19:25:56 -0700 From: Vikash Garodia To: , , , , , , , CC: , , , , Vikash Garodia Subject: [PATCH v2 4/4] venus: hfi_parser: Add check to keep the number of codecs within range Date: Thu, 10 Aug 2023 07:55:04 +0530 Message-ID: <1691634304-2158-5-git-send-email-quic_vgarodia@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1691634304-2158-1-git-send-email-quic_vgarodia@quicinc.com> References: <1691634304-2158-1-git-send-email-quic_vgarodia@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nasanex01a.na.qualcomm.com (10.52.223.231) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: ZYW-dGODzw6ay9RIlfUHdLJyQ7XjRCKE X-Proofpoint-ORIG-GUID: ZYW-dGODzw6ay9RIlfUHdLJyQ7XjRCKE X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-08-10_01,2023-08-09_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 malwarescore=0 adultscore=0 phishscore=0 mlxlogscore=925 mlxscore=0 spamscore=0 priorityscore=1501 suspectscore=0 impostorscore=0 clxscore=1015 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2308100019 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Supported codec bitmask is populated from the payload from venus firmware. There is a possible case when all the bits in the codec bitmask is set. In such case, core cap for decoder is filled and MAX_CODEC_NUM is utilized. Now while filling the caps for encoder, it can lead to access the caps array beyong 32 index. Hence leading to OOB write. The fix counts the supported encoder and decoder. If the count is more than max, then it skips accessing the caps. Cc: stable@vger.kernel.org Fixes: 1a73374a04e5 ("media: venus: hfi_parser: add common capability parse= r") Signed-off-by: Vikash Garodia --- drivers/media/platform/qcom/venus/hfi_parser.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/media/platform/qcom/venus/hfi_parser.c b/drivers/media= /platform/qcom/venus/hfi_parser.c index 9d6ba22..c438395 100644 --- a/drivers/media/platform/qcom/venus/hfi_parser.c +++ b/drivers/media/platform/qcom/venus/hfi_parser.c @@ -19,6 +19,9 @@ static void init_codecs(struct venus_core *core) struct hfi_plat_caps *caps =3D core->caps, *cap; unsigned long bit; =20 + if (hweight_long(core->dec_codecs) + hweight_long(core->enc_codecs) > MAX= _CODEC_NUM) + return; + for_each_set_bit(bit, &core->dec_codecs, MAX_CODEC_NUM) { cap =3D &caps[core->codecs_count++]; cap->codec =3D BIT(bit); --=20 2.7.4