On Tue, Feb 07, 2023 at 07:35:54PM +0000, Eric Biggers wrote: > Now, it's possible that "the kernel automatically adds the key for > test_dummy_encryption" could be implemented a bit differently. It maybe could > be done at the last minute, when the key is being looked for due to a user > filesystem operation, instead of during the mount itself. That would eliminate > the need to call fscrypt_destroy_keyring() from __put_super(), which would avoid > the issue being discussed here. I'll see if there's a good way to do that. "[PATCH 0/5] Add the test_dummy_encryption key on-demand" (https://lore.kernel.org/linux-fscrypt/20230208062107.199831-1-ebiggers@xxxxxxxxxx/T/#u) implements this. - Eric
