From 318848009200c45f1a81eda5c7d4205a83871303 Mon Sep 17 00:00:00 2001 From: Robert Marko Date: Tue, 4 Apr 2023 21:49:43 +0200 Subject: [PATCH] mac80211: ath11k: Fix invalid mgmt rx frame length issue FW 2.9 uses multiple TLV-s for the RX mgmt even which driver currently does not support, so import a pending upstream patch to fix that [1]. [1] https://patchwork.kernel.org/project/linux-wireless/patch/20230320133840.30162-1-quic_nmaran@quicinc.com/ Signed-off-by: Robert Marko --- ...lid-management-rx-frame-length-issue.patch | 202 ++++++++++++++++++ 1 file changed, 202 insertions(+) create mode 100644 package/kernel/mac80211/patches/ath11k/101-Fix-invalid-management-rx-frame-length-issue.patch diff --git a/package/kernel/mac80211/patches/ath11k/101-Fix-invalid-management-rx-frame-length-issue.patch b/package/kernel/mac80211/patches/ath11k/101-Fix-invalid-management-rx-frame-length-issue.patch new file mode 100644 index 00000000000..7b650a53427 --- /dev/null +++ b/package/kernel/mac80211/patches/ath11k/101-Fix-invalid-management-rx-frame-length-issue.patch @@ -0,0 +1,202 @@ +From patchwork Mon Mar 20 13:38:40 2023 +Content-Type: text/plain; charset="utf-8" +MIME-Version: 1.0 +Content-Transfer-Encoding: 7bit +X-Patchwork-Submitter: Nagarajan Maran +X-Patchwork-Id: 13181272 +X-Patchwork-Delegate: kvalo@adurom.com +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 6F899C6FD1D + for ; 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Mon, 20 Mar 2023 06:39:02 -0700 +From: Nagarajan Maran +To: +CC: , + Bhagavathi Perumal S , + Nagarajan Maran +Subject: [PATCH] wifi: ath11k: Fix invalid management rx frame length issue +Date: Mon, 20 Mar 2023 19:08:40 +0530 +Message-ID: <20230320133840.30162-1-quic_nmaran@quicinc.com> +X-Mailer: git-send-email 2.17.1 +MIME-Version: 1.0 +X-Originating-IP: [10.80.80.8] +X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To + nalasex01a.na.qualcomm.com (10.47.209.196) +X-QCInternal: smtphost +X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 + signatures=585085 +X-Proofpoint-ORIG-GUID: 8NkXcGNm6eXVpjTaeMT1e0VxZ9FeT59R +X-Proofpoint-GUID: 8NkXcGNm6eXVpjTaeMT1e0VxZ9FeT59R +X-Proofpoint-Virus-Version: vendor=baseguard + engine=ICAP:2.0.254,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 + definitions=2023-03-20_09,2023-03-20_02,2023-02-09_01 +X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 + mlxlogscore=999 + malwarescore=0 priorityscore=1501 mlxscore=0 bulkscore=0 adultscore=0 + spamscore=0 impostorscore=0 phishscore=0 clxscore=1011 suspectscore=0 + lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 + engine=8.12.0-2303150002 definitions=main-2303200115 +Precedence: bulk +List-ID: +X-Mailing-List: linux-wireless@vger.kernel.org + +From: Bhagavathi Perumal S + +The WMI management rx event has multiple arrays of TLVs, however the common +WMI TLV parser won't handle multiple TLV tags of same type. +So the multiple array tags of WMI management rx TLV is parsed incorrectly +and the length calculated becomes wrong when the target sends multiple +array tags. + +Add separate TLV parser to handle multiple arrays for WMI management rx +TLV. This fixes invalid length issue when the target sends multiple array +tags. + +Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1 + +Signed-off-by: Bhagavathi Perumal S +Co-developed-by: Nagarajan Maran +Signed-off-by: Nagarajan Maran +--- + drivers/net/wireless/ath/ath11k/wmi.c | 45 +++++++++++++++++++++------ + 1 file changed, 35 insertions(+), 10 deletions(-) + + +base-commit: 3df3715e556027e94246b2cb30986563362a65f4 + +--- a/drivers/net/wireless/ath/ath11k/wmi.c ++++ b/drivers/net/wireless/ath/ath11k/wmi.c +@@ -82,6 +82,12 @@ struct wmi_tlv_fw_stats_parse { + bool chain_rssi_done; + }; + ++struct wmi_tlv_mgmt_rx_parse { ++ const struct wmi_mgmt_rx_hdr *fixed; ++ const u8 *frame_buf; ++ bool frame_buf_done; ++}; ++ + static const struct wmi_tlv_policy wmi_tlv_policies[] = { + [WMI_TAG_ARRAY_BYTE] + = { .min_len = 0 }, +@@ -5633,28 +5639,49 @@ static int ath11k_pull_vdev_stopped_para + return 0; + } + ++static int ath11k_wmi_tlv_mgmt_rx_parse(struct ath11k_base *ab, ++ u16 tag, u16 len, ++ const void *ptr, void *data) ++{ ++ struct wmi_tlv_mgmt_rx_parse *parse = data; ++ ++ switch (tag) { ++ case WMI_TAG_MGMT_RX_HDR: ++ parse->fixed = ptr; ++ break; ++ case WMI_TAG_ARRAY_BYTE: ++ if (!parse->frame_buf_done) { ++ parse->frame_buf = ptr; ++ parse->frame_buf_done = true; ++ } ++ break; ++ } ++ return 0; ++} ++ + static int ath11k_pull_mgmt_rx_params_tlv(struct ath11k_base *ab, + struct sk_buff *skb, + struct mgmt_rx_event_params *hdr) + { +- const void **tb; ++ struct wmi_tlv_mgmt_rx_parse parse = { }; + const struct wmi_mgmt_rx_hdr *ev; + const u8 *frame; + int ret; + +- tb = ath11k_wmi_tlv_parse_alloc(ab, skb->data, skb->len, GFP_ATOMIC); +- if (IS_ERR(tb)) { +- ret = PTR_ERR(tb); +- ath11k_warn(ab, "failed to parse tlv: %d\n", ret); ++ ret = ath11k_wmi_tlv_iter(ab, skb->data, skb->len, ++ ath11k_wmi_tlv_mgmt_rx_parse, ++ &parse); ++ if (ret) { ++ ath11k_warn(ab, "failed to parse mgmt rx tlv %d\n", ++ ret); + return ret; + } + +- ev = tb[WMI_TAG_MGMT_RX_HDR]; +- frame = tb[WMI_TAG_ARRAY_BYTE]; ++ ev = parse.fixed; ++ frame = parse.frame_buf; + + if (!ev || !frame) { + ath11k_warn(ab, "failed to fetch mgmt rx hdr"); +- kfree(tb); + return -EPROTO; + } + +@@ -5673,7 +5700,6 @@ static int ath11k_pull_mgmt_rx_params_tl + + if (skb->len < (frame - skb->data) + hdr->buf_len) { + ath11k_warn(ab, "invalid length in mgmt rx hdr ev"); +- kfree(tb); + return -EPROTO; + } + +@@ -5685,7 +5711,6 @@ static int ath11k_pull_mgmt_rx_params_tl + + ath11k_ce_byte_swap(skb->data, hdr->buf_len); + +- kfree(tb); + return 0; + } +