Consider the following transcript:
$ keyctl add trusted kmk "new 32 blobauth=helloworld keyhandle=80000000 migratable=1" @u add_key: Invalid argument
The documentation has the following description:
migratable= 0|1 indicating permission to reseal to new PCR values, default 1 (resealing allowed)
The consequence is that "migratable=1" should succeed. Fix this by allowing this condition to pass instead of return -EINVAL.
[*] Documentation/security/keys/trusted-encrypted.rst
Cc: stable@vger.kernel.org Cc: "James E.J. Bottomley" jejb@linux.ibm.com Cc: Mimi Zohar zohar@linux.ibm.com Cc: David Howells dhowells@redhat.com Fixes: d00a1c72f7f4 ("keys: add new trusted key-type") Signed-off-by: Jarkko Sakkinen jarkko.sakkinen@linux.intel.com --- security/keys/trusted-keys/trusted_tpm1.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/security/keys/trusted-keys/trusted_tpm1.c b/security/keys/trusted-keys/trusted_tpm1.c index c1dfc32c780b..20ca18e17437 100644 --- a/security/keys/trusted-keys/trusted_tpm1.c +++ b/security/keys/trusted-keys/trusted_tpm1.c @@ -801,7 +801,7 @@ static int getoptions(char *c, struct trusted_key_payload *pay, case Opt_migratable: if (*args[0].from == '0') pay->migratable = 0; - else + else if (*args[0].from != '1') return -EINVAL; break; case Opt_pcrlock: