This is a note to let you know that I've just added the patch titled
wifi: iwlwifi: mvm: fix potential memory leak
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
wifi-iwlwifi-mvm-fix-potential-memory-leak.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 23492c160e827ce52d7a893fd751ca2d35de47fa
Author: Johannes Berg <johannes.berg@xxxxxxxxx>
Date: Tue Apr 18 12:28:08 2023 +0300
wifi: iwlwifi: mvm: fix potential memory leak
[ Upstream commit 457d7fb03e6c3d73fbb509bd85fc4b02d1ab405e ]
If we do get multiple notifications from firmware, then
we might have allocated 'notif', but don't free it. Fix
that by checking for duplicates before allocation.
Fixes: 4da46a06d443 ("wifi: iwlwifi: mvm: Add support for wowlan info notification")
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Gregory Greenman <gregory.greenman@xxxxxxxxx>
Link: https://lore.kernel.org/r/20230418122405.116758321cc4.I8bdbcbb38c89ac637eaa20dda58fa9165b25893a@changeid
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
index 0253dedb9b71a..c876e81437fee 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
@@ -2714,6 +2714,13 @@ static bool iwl_mvm_wait_d3_notif(struct iwl_notif_wait_data *notif_wait,
case WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_INFO_NOTIFICATION): {
struct iwl_wowlan_info_notif *notif;
+ if (d3_data->notif_received & IWL_D3_NOTIF_WOWLAN_INFO) {
+ /* We might get two notifications due to dual bss */
+ IWL_DEBUG_WOWLAN(mvm,
+ "Got additional wowlan info notification\n");
+ break;
+ }
+
if (wowlan_info_ver < 2) {
struct iwl_wowlan_info_notif_v1 *notif_v1 = (void *)pkt->data;
@@ -2732,13 +2739,6 @@ static bool iwl_mvm_wait_d3_notif(struct iwl_notif_wait_data *notif_wait,
notif = (void *)pkt->data;
}
- if (d3_data->notif_received & IWL_D3_NOTIF_WOWLAN_INFO) {
- /* We might get two notifications due to dual bss */
- IWL_DEBUG_WOWLAN(mvm,
- "Got additional wowlan info notification\n");
- break;
- }
-
d3_data->notif_received |= IWL_D3_NOTIF_WOWLAN_INFO;
len = iwl_rx_packet_payload_len(pkt);
iwl_mvm_parse_wowlan_info_notif(mvm, notif, d3_data->status,
