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-rw-r--r--net/bluetooth/smp.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index e68c715f8d37..6c2b4e6e87ba 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -2579,6 +2579,19 @@ static int smp_cmd_ident_addr_info(struct l2cap_conn *conn,
goto distribute;
}
+ /* Drop IRK if peer is using identity address during pairing but is
+ * providing different address as identity information.
+ *
+ * Microsoft Surface Precision Mouse is known to have this bug.
+ */
+ if (hci_is_identity_address(&hcon->dst, hcon->dst_type) &&
+ (bacmp(&info->bdaddr, &hcon->dst) ||
+ info->addr_type != hcon->dst_type)) {
+ bt_dev_err(hcon->hdev,
+ "ignoring IRK with invalid identity address");
+ goto distribute;
+ }
+
bacpy(&smp->id_addr, &info->bdaddr);
smp->id_addr_type = info->addr_type;