diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/nvm.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/nvm.c | 43 |
1 files changed, 36 insertions, 7 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/nvm.c b/drivers/net/wireless/intel/iwlwifi/mvm/nvm.c index 953218f1e025..f76e57399c1f 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/nvm.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/nvm.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* - * Copyright (C) 2012-2014, 2018-2019, 2021-2025 Intel Corporation + * Copyright (C) 2012-2014, 2018-2019, 2021-2026 Intel Corporation * Copyright (C) 2013-2015 Intel Mobile Communications GmbH * Copyright (C) 2016-2017 Intel Deutschland GmbH */ @@ -416,6 +416,7 @@ iwl_mvm_update_mcc(struct iwl_mvm *mvm, const char *alpha2, int ret, resp_ver; u32 status; int resp_len, n_channels; + unsigned int pkt_len; u16 mcc; if (WARN_ON_ONCE(!iwl_mvm_is_lar_supported(mvm))) @@ -431,6 +432,7 @@ iwl_mvm_update_mcc(struct iwl_mvm *mvm, const char *alpha2, return ERR_PTR(ret); pkt = cmd.resp_pkt; + pkt_len = iwl_rx_packet_payload_len(pkt); resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP, MCC_UPDATE_CMD, 0); @@ -439,9 +441,18 @@ iwl_mvm_update_mcc(struct iwl_mvm *mvm, const char *alpha2, if (resp_ver >= 8) { struct iwl_mcc_update_resp_v8 *mcc_resp_v8 = (void *)pkt->data; + if (IWL_FW_CHECK(mvm, pkt_len < sizeof(*mcc_resp_v8), + "MCC v8 response too short: %u\n", pkt_len)) { + resp_cp = ERR_PTR(-EINVAL); + goto exit; + } + n_channels = __le32_to_cpu(mcc_resp_v8->n_channels); - if (iwl_rx_packet_payload_len(pkt) != - struct_size(mcc_resp_v8, channels, n_channels)) { + if (IWL_FW_CHECK(mvm, + pkt_len != + struct_size(mcc_resp_v8, channels, n_channels), + "invalid MCC v8 response size: %u (n_channels=%d)\n", + pkt_len, n_channels)) { resp_cp = ERR_PTR(-EINVAL); goto exit; } @@ -464,9 +475,18 @@ iwl_mvm_update_mcc(struct iwl_mvm *mvm, const char *alpha2, IWL_UCODE_TLV_CAPA_MCC_UPDATE_11AX_SUPPORT)) { struct iwl_mcc_update_resp_v4 *mcc_resp_v4 = (void *)pkt->data; + if (IWL_FW_CHECK(mvm, pkt_len < sizeof(*mcc_resp_v4), + "MCC v4 response too short: %u\n", pkt_len)) { + resp_cp = ERR_PTR(-EINVAL); + goto exit; + } + n_channels = __le32_to_cpu(mcc_resp_v4->n_channels); - if (iwl_rx_packet_payload_len(pkt) != - struct_size(mcc_resp_v4, channels, n_channels)) { + if (IWL_FW_CHECK(mvm, + pkt_len != + struct_size(mcc_resp_v4, channels, n_channels), + "invalid MCC v4 response size: %u (n_channels=%d)\n", + pkt_len, n_channels)) { resp_cp = ERR_PTR(-EINVAL); goto exit; } @@ -489,9 +509,18 @@ iwl_mvm_update_mcc(struct iwl_mvm *mvm, const char *alpha2, } else { struct iwl_mcc_update_resp_v3 *mcc_resp_v3 = (void *)pkt->data; + if (IWL_FW_CHECK(mvm, pkt_len < sizeof(*mcc_resp_v3), + "MCC v3 response too short: %u\n", pkt_len)) { + resp_cp = ERR_PTR(-EINVAL); + goto exit; + } + n_channels = __le32_to_cpu(mcc_resp_v3->n_channels); - if (iwl_rx_packet_payload_len(pkt) != - struct_size(mcc_resp_v3, channels, n_channels)) { + if (IWL_FW_CHECK(mvm, + pkt_len != + struct_size(mcc_resp_v3, channels, n_channels), + "invalid MCC v3 response size: %u (n_channels=%d)\n", + pkt_len, n_channels)) { resp_cp = ERR_PTR(-EINVAL); goto exit; } |