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KEYS: trusted: Fix migratable=1 failing

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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: d00a1c72f7 ("keys: add new trusted key-type")
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
This commit is contained in:
Jarkko Sakkinen 2021-01-29 01:56:20 +02:00
parent 5df16caada
commit 8da7520c80
1 changed files with 1 additions and 1 deletions
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2
security/keys/trusted-keys/trusted_tpm1.c
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@ -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: