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wifi: iwlwifi: mld: 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.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20251019114304.b127a2b57e8c.I7ccaf118d236fb39da5da351b95ad9b37b825bc2@changeid
This commit is contained in:
Miri Korenblit 2025-10-19 11:45:07 +03:00
parent d24076e075
commit 7906c61a8f
1 changed files with 13 additions and 0 deletions
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13
drivers/net/wireless/intel/iwlwifi/mld/iface.c
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@ -528,6 +528,19 @@ void iwl_mld_handle_probe_resp_data_notif(struct iwl_mld *mld,
mld_link = &iwl_mld_vif_from_mac80211(vif)->deflink;
/* 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(mld, 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;