core/slip39: catch exception also when finding out threshold in recovery

5 years ago · 390bef00ca
parent 6c50b155de
commit 390bef00ca
1 changed files with 4 additions and 1 deletions
--- a/core/src/apps/management/recovery_device.py
+++ b/core/src/apps/management/recovery_device.py
@ -70,7 +70,10 @@ async def recovery_device(ctx, msg):
            ctx, wordcount, mnemonic_module == mnemonic.slip39
        )
        if mnemonic_threshold is None:
-            mnemonic_threshold = mnemonic_module.get_mnemonic_threshold(words)
+            try:
+                mnemonic_threshold = mnemonic_module.get_mnemonic_threshold(words)
+            except slip39.MnemonicError:
+                raise wire.ProcessError("Mnemonic is not valid")
        mnemonics.append(words)
        remaining = mnemonic_threshold - len(mnemonics)
        if remaining == 0: