diff --git a/src/rsn_supp/wpa.c b/src/rsn_supp/wpa.c index eabe88bc0..899a43089 100644 --- a/src/rsn_supp/wpa.c +++ b/src/rsn_supp/wpa.c @@ -1058,9 +1058,27 @@ static int wpa_supplicant_install_igtk(struct wpa_sm *sm, broadcast_ether_addr, keyidx, 0, igtk->pn, sizeof(igtk->pn), igtk->igtk, len) < 0) { - wpa_msg(sm->ctx->msg_ctx, MSG_WARNING, - "WPA: Failed to configure IGTK to the driver"); - return -1; + if (keyidx == 0x0400 || keyidx == 0x0500) { + /* Assume the AP has broken PMF implementation since it + * seems to have swapped the KeyID bytes. The AP cannot + * be trusted to implement BIP correctly or provide a + * valid IGTK, so do not try to configure this key with + * swapped KeyID bytes. Instead, continue without + * configuring the IGTK so that the driver can drop any + * received group-addressed robust management frames due + * to missing keys. + * + * Normally, this error behavior would result in us + * disconnecting, but there are number of deployed APs + * with this broken behavior, so as an interoperability + * workaround, allow the connection to proceed. */ + wpa_msg(sm->ctx->msg_ctx, MSG_INFO, + "WPA: Ignore IGTK configuration error due to invalid IGTK KeyID byte order"); + } else { + wpa_msg(sm->ctx->msg_ctx, MSG_WARNING, + "WPA: Failed to configure IGTK to the driver"); + return -1; + } } if (wnm_sleep) {