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authorLuca Coelho <luciano.coelho@intel.com>2018-11-06 08:24:12 +0200
committerLuca Coelho <luciano.coelho@intel.com>2019-01-29 16:10:30 +0200
commit9adcc117bc7d16e5ef226fec0a1d1f25765bf9ce (patch)
treef864551e85f7693f8fa65af8b2fb6e875b7f3f47 /drivers/net
parent29cf396f08f6476935c445faddcaf90f2fe2fa87 (diff)
downloadlinux-9adcc117bc7d16e5ef226fec0a1d1f25765bf9ce.tar.bz2
iwlwifi: make sure cur_fw_img is valid before accessing img
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 <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/wireless/intel/iwlwifi/fw/dbg.h1
1 files changed, 1 insertions, 0 deletions
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;
}