From: Luca Coelho <[email protected]>

Harden the fwrt->fw->img array access by making sure the cur_fw_img
value doesn't go out of bounds.

Signed-off-by: Luca Coelho <[email protected]>
---
 drivers/net/wireless/intel/iwlwifi/fw/dbg.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.h 
b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
index d8090d4b5c43..330229d2a61d 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
@@ -381,6 +381,7 @@ static inline bool iwl_fw_dbg_is_paging_enabled(struct 
iwl_fw_runtime *fwrt)
 {
        return iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_PAGING) &&
                !fwrt->trans->cfg->gen2 &&
+               fwrt->cur_fw_img < IWL_UCODE_TYPE_MAX &&
                fwrt->fw->img[fwrt->cur_fw_img].paging_mem_size &&
                fwrt->fw_paging_db[0].fw_paging_block;
 }
-- 
2.20.1

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