+++ /dev/null
-From 58192b9ce09b0f0f86e2036683bd542130b91a98 Mon Sep 17 00:00:00 2001
-From: Johannes Berg <johannes.berg@intel.com>
-Date: Mon, 10 Nov 2025 15:02:19 +0200
-Subject: wifi: iwlwifi: fix 22000 series SMEM parsing
-
-From: Johannes Berg <johannes.berg@intel.com>
-
-commit 58192b9ce09b0f0f86e2036683bd542130b91a98 upstream.
-
-If the firmware were to report three LMACs (which doesn't
-exist in hardware) then using "fwrt->smem_cfg.lmac[2]" is
-an overrun of the array. Reject such and use IWL_FW_CHECK
-instead of WARN_ON in this function.
-
-Signed-off-by: Johannes Berg <johannes.berg@intel.com>
-Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
-Link: https://patch.msgid.link/20251110150012.16e8c2d70c26.Iadfcc1aedf43c5175b3f0757bea5aa232454f1ac@changeid
-Signed-off-by: Nazar Kalashnikov <sivartiwe@gmail.com>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/net/wireless/intel/iwlwifi/fw/smem.c | 8 ++++++--
- 1 file changed, 6 insertions(+), 2 deletions(-)
-
---- a/drivers/net/wireless/intel/iwlwifi/fw/smem.c
-+++ b/drivers/net/wireless/intel/iwlwifi/fw/smem.c
-@@ -6,6 +6,7 @@
- */
- #include "iwl-drv.h"
- #include "runtime.h"
-+#include "dbg.h"
- #include "fw/api/commands.h"
-
- static void iwl_parse_shared_mem_22000(struct iwl_fw_runtime *fwrt,
-@@ -17,7 +18,9 @@ static void iwl_parse_shared_mem_22000(s
- u8 api_ver = iwl_fw_lookup_notif_ver(fwrt->fw, SYSTEM_GROUP,
- SHARED_MEM_CFG_CMD, 0);
-
-- if (WARN_ON(lmac_num > ARRAY_SIZE(mem_cfg->lmac_smem)))
-+ /* Note: notification has 3 entries, but we only expect 2 */
-+ if (IWL_FW_CHECK(fwrt, lmac_num > ARRAY_SIZE(fwrt->smem_cfg.lmac),
-+ "FW advertises %d LMACs\n", lmac_num))
- return;
-
- fwrt->smem_cfg.num_lmacs = lmac_num;
-@@ -26,7 +29,8 @@ static void iwl_parse_shared_mem_22000(s
- fwrt->smem_cfg.rxfifo2_size = le32_to_cpu(mem_cfg->rxfifo2_size);
-
- if (api_ver >= 4 &&
-- !WARN_ON_ONCE(iwl_rx_packet_payload_len(pkt) < sizeof(*mem_cfg))) {
-+ !IWL_FW_CHECK(fwrt, iwl_rx_packet_payload_len(pkt) < sizeof(*mem_cfg),
-+ "bad shared mem notification size\n")) {
- fwrt->smem_cfg.rxfifo2_control_size =
- le32_to_cpu(mem_cfg->rxfifo2_control_size);
- }