diff mbox series

[05/15] wifi: iwlwifi: mvm: rfi: fix potential response leaks

Message ID 20240319100755.db2fa0196aa7.I116293b132502ac68a65527330fa37799694b79c@changeid (mailing list archive)
State Accepted
Delegated to: Johannes Berg
Headers show
Series wifi: iwlwifi: updates - 2024-03-19 | expand

Commit Message

Korenblit, Miriam Rachel March 19, 2024, 8:10 a.m. UTC 
From: Johannes Berg <johannes.berg@intel.com>

If the rx payload length check fails, or if kmemdup() fails,
we still need to free the command response. Fix that.

Fixes: 21254908cbe9 ("iwlwifi: mvm: add RFI-M support")
Co-authored-by: Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/mvm/rfi.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rfi.c b/drivers/net/wireless/intel/iwlwifi/mvm/rfi.c
index 2ecd32bed752..045c862a8fc4 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rfi.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rfi.c
@@ -132,14 +132,18 @@  struct iwl_rfi_freq_table_resp_cmd *iwl_rfi_get_freq_table(struct iwl_mvm *mvm)
 	if (ret)
 		return ERR_PTR(ret);
 
-	if (WARN_ON_ONCE(iwl_rx_packet_payload_len(cmd.resp_pkt) != resp_size))
+	if (WARN_ON_ONCE(iwl_rx_packet_payload_len(cmd.resp_pkt) !=
+			 resp_size)) {
+		iwl_free_resp(&cmd);
 		return ERR_PTR(-EIO);
+	}
 
 	resp = kmemdup(cmd.resp_pkt->data, resp_size, GFP_KERNEL);
+	iwl_free_resp(&cmd);
+
 	if (!resp)
 		return ERR_PTR(-ENOMEM);
 
-	iwl_free_resp(&cmd);
 	return resp;
 }