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wifi: iwlwifi: mvm: check the validity of noa_len

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Validate iwl_probe_resp_data_notif::noa_attr::len_low since we are using
its value to determine the noa_len, which is later used for the NoA
attribute.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20251110150012.99b663d9b424.I206fd54c990ca9e1160b9b94fa8be44e67bcc1b9@changeid
This commit is contained in:
Miri Korenblit 2025-11-10 15:02:15 +02:00
parent 60abc02770
commit 1e3fb3c4a8
1 changed files with 14 additions and 0 deletions
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14
drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
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@ -1761,6 +1761,20 @@ void iwl_mvm_probe_resp_data_notif(struct iwl_mvm *mvm,
mvmvif = iwl_mvm_vif_from_mac80211(vif);
/*
* len_low should be 2 + n*13 (where n is the number of descriptors.
* 13 is the size of a NoA descriptor). We can have either one or two
* descriptors.
*/
if (IWL_FW_CHECK(mvm, notif->noa_active &&
notif->noa_attr.len_low != 2 +
sizeof(struct ieee80211_p2p_noa_desc) &&
notif->noa_attr.len_low != 2 +
sizeof(struct ieee80211_p2p_noa_desc) * 2,
"Invalid noa_attr.len_low (%d)\n",
notif->noa_attr.len_low))
return;
new_data = kzalloc(sizeof(*new_data), GFP_KERNEL);
if (!new_data)
return;