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authorDaniel Gabay <daniel.gabay@intel.com>2024-10-10 14:05:05 +0300
committerJohannes Berg <johannes.berg@intel.com>2024-10-25 17:53:33 +0200
commit07a6e3b78a65f4b2796a8d0d4adb1a15a81edead (patch)
tree21d84710ade4961b4b44133e0bdfbb03726b1cc9 /drivers/net/wireless/intel/iwlwifi/mvm
parent32d95ab330069f9c551b8e99770bb4e799730b55 (diff)
wifi: iwlwifi: mvm: Fix response handling in iwl_mvm_send_recovery_cmd()
1. The size of the response packet is not validated. 2. The response buffer is not freed. Resolve these issues by switching to iwl_mvm_send_cmd_status(), which handles both size validation and frees the buffer. Fixes: f130bb75d881 ("iwlwifi: add FW recovery flow") Signed-off-by: Daniel Gabay <daniel.gabay@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20241010140328.76c73185951e.Id3b6ca82ced2081f5ee4f33c997491d0ebda83f7@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm')
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/fw.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
index 08546e673cf5..f30b0fc8eca9 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
@@ -1307,8 +1307,8 @@ static void iwl_mvm_disconnect_iterator(void *data, u8 *mac,
void iwl_mvm_send_recovery_cmd(struct iwl_mvm *mvm, u32 flags)
{
u32 error_log_size = mvm->fw->ucode_capa.error_log_size;
+ u32 status = 0;
int ret;
- u32 resp;
struct iwl_fw_error_recovery_cmd recovery_cmd = {
.flags = cpu_to_le32(flags),
@@ -1316,7 +1316,6 @@ void iwl_mvm_send_recovery_cmd(struct iwl_mvm *mvm, u32 flags)
};
struct iwl_host_cmd host_cmd = {
.id = WIDE_ID(SYSTEM_GROUP, FW_ERROR_RECOVERY_CMD),
- .flags = CMD_WANT_SKB,
.data = {&recovery_cmd, },
.len = {sizeof(recovery_cmd), },
};
@@ -1336,7 +1335,7 @@ void iwl_mvm_send_recovery_cmd(struct iwl_mvm *mvm, u32 flags)
recovery_cmd.buf_size = cpu_to_le32(error_log_size);
}
- ret = iwl_mvm_send_cmd(mvm, &host_cmd);
+ ret = iwl_mvm_send_cmd_status(mvm, &host_cmd, &status);
kfree(mvm->error_recovery_buf);
mvm->error_recovery_buf = NULL;
@@ -1347,11 +1346,10 @@ void iwl_mvm_send_recovery_cmd(struct iwl_mvm *mvm, u32 flags)
/* skb respond is only relevant in ERROR_RECOVERY_UPDATE_DB */
if (flags & ERROR_RECOVERY_UPDATE_DB) {
- resp = le32_to_cpu(*(__le32 *)host_cmd.resp_pkt->data);
- if (resp) {
+ if (status) {
IWL_ERR(mvm,
"Failed to send recovery cmd blob was invalid %d\n",
- resp);
+ status);
ieee80211_iterate_interfaces(mvm->hw, 0,
iwl_mvm_disconnect_iterator,