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iwlwifi: mvm: avoid use-after-free on iwl_mvm_d0i3_enable_tx()
qos_seq points (to a struct) inside the command response data. Make sure to free the response only after qos_seq is not needed anymore. Reported-by: Heng Luo <heng.luo@intel.com> Signed-off-by: Eliad Peller <eliadx.peller@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
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1 changed files with 4 additions and 2 deletions
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@ -1263,11 +1263,13 @@ static void iwl_mvm_d0i3_exit_work(struct work_struct *wk)
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ieee80211_iterate_active_interfaces(
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mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
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iwl_mvm_d0i3_disconnect_iter, mvm);
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iwl_free_resp(&get_status_cmd);
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out:
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iwl_mvm_d0i3_enable_tx(mvm, qos_seq);
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/* qos_seq might point inside resp_pkt, so free it only now */
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if (get_status_cmd.resp_pkt)
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iwl_free_resp(&get_status_cmd);
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/* the FW might have updated the regdomain */
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iwl_mvm_update_changed_regdom(mvm);
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