Commit a9dc5060 authored by Eyal Shapira's avatar Eyal Shapira Committed by Emmanuel Grumbach

iwlwifi: mvm: fix out of bounds access to tid_to_mac80211_ac

When tid_tspec was set to IWL_TID_NON_QOS (8) this led to an
out of bounds access to the tid_to_mac80211_ac array whose size
is 7. Fix this.
Signed-off-by: default avatarEyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
parent c93edc63
...@@ -108,8 +108,12 @@ void iwl_mvm_set_tx_cmd(struct iwl_mvm *mvm, struct sk_buff *skb, ...@@ -108,8 +108,12 @@ void iwl_mvm_set_tx_cmd(struct iwl_mvm *mvm, struct sk_buff *skb,
tx_flags &= ~TX_CMD_FLG_SEQ_CTL; tx_flags &= ~TX_CMD_FLG_SEQ_CTL;
} }
/* tid_tspec will default to 0 = BE when QOS isn't enabled */ /* Default to 0 (BE) when tid_spec is set to IWL_TID_NON_QOS */
if (tx_cmd->tid_tspec < IWL_MAX_TID_COUNT)
ac = tid_to_mac80211_ac[tx_cmd->tid_tspec]; ac = tid_to_mac80211_ac[tx_cmd->tid_tspec];
else
ac = tid_to_mac80211_ac[0];
tx_flags |= iwl_mvm_bt_coex_tx_prio(mvm, hdr, info, ac) << tx_flags |= iwl_mvm_bt_coex_tx_prio(mvm, hdr, info, ac) <<
TX_CMD_FLG_BT_PRIO_POS; TX_CMD_FLG_BT_PRIO_POS;
......
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