From patchwork Sat Jul 22 07:46:07 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yunfei Dong X-Patchwork-Id: 13322850 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1DC10EB64DC for ; Sat, 22 Jul 2023 07:46:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=lzos/7gGyyg447m8ABmZvOkBRfFlz8+Ylbvr+ujWFFw=; b=YL2MxfQy5LmyWZ RJZfgnxvmpCOcNLWCLOk+hDAMAjr0BQ5XTCVrXxJ+s2e4rnVR+2Lnf+MvvjlPG9HkJQZT2/m68EBh /iKZ8lVoX5hUw6DHixITJLuyt3AKTQ8xSYadeHH8hUvZQWA3010J1cZjEwJ82kECErY+oIu/pjFIN dWpf5dyWfCS4ON8LIDqTu6Bb++0sPakZWIWRQJf/5dwq+pwxvX0/fqU3aruF2JMWyBwYbwK8Fg4mB 7dMFT2sUWs+J7KFbcW6tdro/BFfxiedSb2ATkwRvQ0GlsJDZyTHC09QLJ0ltrC3YxzZJ+g7ash5u8 zErx5dUCeGyEbiCZ2+2Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qN7Jj-00G4H1-0m; Sat, 22 Jul 2023 07:46:19 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qN7Jg-00G4Fy-11; Sat, 22 Jul 2023 07:46:17 +0000 X-UUID: d53ff754286311ee912e1518a6540028-20230722 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:Content-Transfer-Encoding:MIME-Version:Message-ID:Date:Subject:CC:To:From; bh=qqEksVJOPOKTBPEsGrR2lio+XwHgG5w59AALFAQnXeI=; b=Bqy75utWYAj0+cwNWEAlYMhTcesfOtoLlYiPvi3fbfraUwPMN2Ye7jgJd6fDy62OIubCyBJxYTzBc2szngcfp7bQhTokOf+k4E8OH+l3lB/ex7AujM7/xOadg6Lt54aNn18UjTtbJ3e3HtzCg9ERPPOiBxSHbjwdiPv9EQwg0J8=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.28,REQID:3c1317a6-f387-4717-963d-57fe1c2c4d9b,IP:0,U RL:0,TC:0,Content:-25,EDM:0,RT:0,SF:95,FILE:0,BULK:0,RULE:Release_Ham,ACTI ON:release,TS:70 X-CID-INFO: VERSION:1.1.28,REQID:3c1317a6-f387-4717-963d-57fe1c2c4d9b,IP:0,URL :0,TC:0,Content:-25,EDM:0,RT:0,SF:95,FILE:0,BULK:0,RULE:Spam_GS981B3D,ACTI ON:quarantine,TS:70 X-CID-META: VersionHash:176cd25,CLOUDID:2b07f48e-7caa-48c2-8dbb-206f0389473c,B ulkID:230722154614MWI8BHDS,BulkQuantity:0,Recheck:0,SF:29|28|17|19|48|38,T C:nil,Content:0,EDM:-3,IP:nil,URL:0,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0 ,OSI:0,OSA:0,AV:0,LES:1,SPR:NO,DKR:0,DKP:0 X-CID-BVR: 0,NGT X-CID-BAS: 0,NGT,0,_ X-CID-FACTOR: TF_CID_SPAM_FSD,TF_CID_SPAM_SNR,TF_CID_SPAM_SDM,TF_CID_SPAM_ASC, TF_CID_SPAM_FAS X-UUID: d53ff754286311ee912e1518a6540028-20230722 Received: from mtkmbs14n1.mediatek.inc [(172.21.101.75)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 236720694; Sat, 22 Jul 2023 00:46:13 -0700 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Sat, 22 Jul 2023 15:46:11 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Sat, 22 Jul 2023 15:46:10 +0800 From: Yunfei Dong To: =?utf-8?q?N=C3=ADcolas_F_=2E_R_=2E_A_=2E_Prado?= , Nicolas Dufresne , Hans Verkuil , AngeloGioacchino Del Regno , Benjamin Gaignard , Nathan Hebert CC: Chen-Yu Tsai , Hsin-Yi Wang , Fritz Koenig , Daniel Vetter , "Steve Cho" , Yunfei Dong , , , , , , Subject: [PATCH v2,1/2] media: mediatek: vcodec: checking decoder ack message parameter Date: Sat, 22 Jul 2023 15:46:07 +0800 Message-ID: <20230722074608.30766-1-yunfei.dong@mediatek.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230722_004616_362000_E5D21FDD X-CRM114-Status: GOOD ( 16.00 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Need to checking all parameters of msg data are valid or not, in case of access null pointer or unreasonable value leading to kernel reboot. Signed-off-by: Yunfei Dong Reviewed-by: Nicolas Dufresne --- .../vcodec/decoder/mtk_vcodec_dec_drv.h | 2 + .../mediatek/vcodec/decoder/vdec_vpu_if.c | 77 ++++++++++++------- 2 files changed, 52 insertions(+), 27 deletions(-) diff --git a/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.h b/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.h index 6c318de25a55..7e36b2c69b7d 100644 --- a/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.h +++ b/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.h @@ -161,6 +161,7 @@ struct mtk_vcodec_dec_pdata { * @hw_id: hardware index used to identify different hardware. * * @msg_queue: msg queue used to store lat buffer information. + * @vpu_inst: vpu instance pointer. * * @is_10bit_bitstream: set to true if it's 10bit bitstream */ @@ -205,6 +206,7 @@ struct mtk_vcodec_dec_ctx { int hw_id; struct vdec_msg_queue msg_queue; + void *vpu_inst; bool is_10bit_bitstream; }; diff --git a/drivers/media/platform/mediatek/vcodec/decoder/vdec_vpu_if.c b/drivers/media/platform/mediatek/vcodec/decoder/vdec_vpu_if.c index 82c3dc8c4127..23cfe5c6c90b 100644 --- a/drivers/media/platform/mediatek/vcodec/decoder/vdec_vpu_if.c +++ b/drivers/media/platform/mediatek/vcodec/decoder/vdec_vpu_if.c @@ -72,6 +72,21 @@ static void handle_get_param_msg_ack(const struct vdec_vpu_ipi_get_param_ack *ms } } +static bool vpu_dec_check_ap_inst(struct mtk_vcodec_dec_dev *dec_dev, struct vdec_vpu_inst *vpu) +{ + struct mtk_vcodec_dec_ctx *ctx; + int ret = false; + + list_for_each_entry(ctx, &dec_dev->ctx_list, list) { + if (!IS_ERR_OR_NULL(ctx) && ctx->vpu_inst == vpu) { + ret = true; + break; + } + } + + return ret; +} + /* * vpu_dec_ipi_handler - Handler for VPU ipi message. * @@ -84,44 +99,51 @@ static void handle_get_param_msg_ack(const struct vdec_vpu_ipi_get_param_ack *ms */ static void vpu_dec_ipi_handler(void *data, unsigned int len, void *priv) { + struct mtk_vcodec_dec_dev *dec_dev; const struct vdec_vpu_ipi_ack *msg = data; - struct vdec_vpu_inst *vpu = (struct vdec_vpu_inst *) - (unsigned long)msg->ap_inst_addr; + struct vdec_vpu_inst *vpu; - if (!vpu) { + dec_dev = (struct mtk_vcodec_dec_dev *)priv; + vpu = (struct vdec_vpu_inst *)(unsigned long)msg->ap_inst_addr; + if (!priv || !vpu) { mtk_v4l2_vdec_err(vpu->ctx, "ap_inst_addr is NULL, did the SCP hang or crash?"); return; } - mtk_vdec_debug(vpu->ctx, "+ id=%X", msg->msg_id); + if (!vpu_dec_check_ap_inst(dec_dev, vpu) || msg->msg_id < VPU_IPIMSG_DEC_INIT_ACK || + msg->msg_id > VPU_IPIMSG_DEC_GET_PARAM_ACK) { + mtk_v4l2_vdec_err(vpu->ctx, "vdec msg id not correctly => 0x%x", msg->msg_id); + vpu->failure = -EINVAL; + goto error; + } vpu->failure = msg->status; - vpu->signaled = 1; + if (msg->status != 0) + goto error; - if (msg->status == 0) { - switch (msg->msg_id) { - case VPU_IPIMSG_DEC_INIT_ACK: - handle_init_ack_msg(data); - break; + switch (msg->msg_id) { + case VPU_IPIMSG_DEC_INIT_ACK: + handle_init_ack_msg(data); + break; - case VPU_IPIMSG_DEC_START_ACK: - case VPU_IPIMSG_DEC_END_ACK: - case VPU_IPIMSG_DEC_DEINIT_ACK: - case VPU_IPIMSG_DEC_RESET_ACK: - case VPU_IPIMSG_DEC_CORE_ACK: - case VPU_IPIMSG_DEC_CORE_END_ACK: - break; + case VPU_IPIMSG_DEC_START_ACK: + case VPU_IPIMSG_DEC_END_ACK: + case VPU_IPIMSG_DEC_DEINIT_ACK: + case VPU_IPIMSG_DEC_RESET_ACK: + case VPU_IPIMSG_DEC_CORE_ACK: + case VPU_IPIMSG_DEC_CORE_END_ACK: + break; - case VPU_IPIMSG_DEC_GET_PARAM_ACK: - handle_get_param_msg_ack(data); - break; - default: - mtk_vdec_err(vpu->ctx, "invalid msg=%X", msg->msg_id); - break; - } + case VPU_IPIMSG_DEC_GET_PARAM_ACK: + handle_get_param_msg_ack(data); + break; + default: + mtk_vdec_err(vpu->ctx, "invalid msg=%X", msg->msg_id); + break; } - mtk_vdec_debug(vpu->ctx, "- id=%X", msg->msg_id); +error: + vpu->signaled = 1; } static int vcodec_vpu_send_msg(struct vdec_vpu_inst *vpu, void *msg, int len) @@ -182,9 +204,10 @@ int vpu_dec_init(struct vdec_vpu_inst *vpu) init_waitqueue_head(&vpu->wq); vpu->handler = vpu_dec_ipi_handler; + vpu->ctx->vpu_inst = vpu; err = mtk_vcodec_fw_ipi_register(vpu->ctx->dev->fw_handler, vpu->id, - vpu->handler, "vdec", NULL); + vpu->handler, "vdec", vpu->ctx->dev); if (err) { mtk_vdec_err(vpu->ctx, "vpu_ipi_register fail status=%d", err); return err; @@ -193,7 +216,7 @@ int vpu_dec_init(struct vdec_vpu_inst *vpu) if (vpu->ctx->dev->vdec_pdata->hw_arch == MTK_VDEC_LAT_SINGLE_CORE) { err = mtk_vcodec_fw_ipi_register(vpu->ctx->dev->fw_handler, vpu->core_id, vpu->handler, - "vdec", NULL); + "vdec", vpu->ctx->dev); if (err) { mtk_vdec_err(vpu->ctx, "vpu_ipi_register core fail status=%d", err); return err; From patchwork Sat Jul 22 07:46:08 2023 Content-Type: text/plain; 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Sat, 22 Jul 2023 00:46:14 -0700 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs13n1.mediatek.inc (172.21.101.193) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Sat, 22 Jul 2023 15:46:12 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Sat, 22 Jul 2023 15:46:11 +0800 From: Yunfei Dong To: =?utf-8?q?N=C3=ADcolas_F_=2E_R_=2E_A_=2E_Prado?= , Nicolas Dufresne , Hans Verkuil , AngeloGioacchino Del Regno , Benjamin Gaignard , Nathan Hebert CC: Chen-Yu Tsai , Hsin-Yi Wang , Fritz Koenig , Daniel Vetter , Steve Cho , Yunfei Dong , , , , , , Subject: [PATCH v2,2/2] media: mediatek: vcodec: checking encoder ack message parameter Date: Sat, 22 Jul 2023 15:46:08 +0800 Message-ID: <20230722074608.30766-2-yunfei.dong@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230722074608.30766-1-yunfei.dong@mediatek.com> References: <20230722074608.30766-1-yunfei.dong@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230722_004618_142962_D2344830 X-CRM114-Status: GOOD ( 15.42 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Need to checking all parameters of msg data are valid or not, in case of access null pointer or unreasonable value leading to kernel reboot. Signed-off-by: Yunfei Dong --- .../vcodec/encoder/mtk_vcodec_enc_drv.h | 2 + .../mediatek/vcodec/encoder/venc_vpu_if.c | 40 +++++++++++++++++-- 2 files changed, 38 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h index c07010e56649..a042f607ed8d 100644 --- a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h +++ b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h @@ -123,6 +123,7 @@ struct mtk_enc_params { * @xfer_func: enum v4l2_xfer_func, colorspace transfer function * * @q_mutex: vb2_queue mutex. + * @vpu_inst: vpu instance pointer. */ struct mtk_vcodec_enc_ctx { enum mtk_instance_type type; @@ -156,6 +157,7 @@ struct mtk_vcodec_enc_ctx { enum v4l2_xfer_func xfer_func; struct mutex q_mutex; + void *vpu_inst; }; /** diff --git a/drivers/media/platform/mediatek/vcodec/encoder/venc_vpu_if.c b/drivers/media/platform/mediatek/vcodec/encoder/venc_vpu_if.c index 708db1bb32d4..213544e55166 100644 --- a/drivers/media/platform/mediatek/vcodec/encoder/venc_vpu_if.c +++ b/drivers/media/platform/mediatek/vcodec/encoder/venc_vpu_if.c @@ -42,19 +42,47 @@ static void handle_enc_encode_msg(struct venc_vpu_inst *vpu, const void *data) vpu->is_key_frm = msg->is_key_frm; } +static bool vpu_enc_check_ap_inst(struct mtk_vcodec_enc_dev *enc_dev, struct venc_vpu_inst *vpu) +{ + struct mtk_vcodec_enc_ctx *ctx; + int ret = false; + + list_for_each_entry(ctx, &enc_dev->ctx_list, list) { + if (!IS_ERR_OR_NULL(ctx) && ctx->vpu_inst == vpu) { + ret = true; + break; + } + } + + return ret; +} + static void vpu_enc_ipi_handler(void *data, unsigned int len, void *priv) { + struct mtk_vcodec_enc_dev *enc_dev; const struct venc_vpu_ipi_msg_common *msg = data; - struct venc_vpu_inst *vpu = - (struct venc_vpu_inst *)(unsigned long)msg->venc_inst; + struct venc_vpu_inst *vpu; mtk_venc_debug(vpu->ctx, "msg_id %x inst %p status %d", msg->msg_id, vpu, msg->status); - vpu->signaled = 1; + enc_dev = (struct mtk_vcodec_enc_dev *)priv; + vpu = (struct venc_vpu_inst *)(unsigned long)msg->venc_inst; + if (!priv || !vpu) { + mtk_v4l2_venc_err(vpu->ctx, "venc_inst is NULL, did the SCP hang or crash?"); + return; + } + + if (!vpu_enc_check_ap_inst(enc_dev, vpu) || msg->msg_id < VPU_IPIMSG_ENC_INIT_DONE || + msg->msg_id > VPU_IPIMSG_ENC_DEINIT_DONE) { + mtk_v4l2_venc_err(vpu->ctx, "venc msg id not correctly => 0x%x", msg->msg_id); + vpu->failure = -EINVAL; + goto error; + } + vpu->failure = (msg->status != VENC_IPI_MSG_STATUS_OK); if (vpu->failure) { mtk_venc_err(vpu->ctx, "vpu enc status failure %d", vpu->failure); - return; + goto error; } switch (msg->msg_id) { @@ -72,6 +100,9 @@ static void vpu_enc_ipi_handler(void *data, unsigned int len, void *priv) mtk_venc_err(vpu->ctx, "unknown msg id %x", msg->msg_id); break; } + +error: + vpu->signaled = 1; } static int vpu_enc_send_msg(struct venc_vpu_inst *vpu, void *msg, @@ -105,6 +136,7 @@ int vpu_enc_init(struct venc_vpu_inst *vpu) init_waitqueue_head(&vpu->wq_hd); vpu->signaled = 0; vpu->failure = 0; + vpu->ctx->vpu_inst = vpu; status = mtk_vcodec_fw_ipi_register(vpu->ctx->dev->fw_handler, vpu->id, vpu_enc_ipi_handler, "venc", NULL);