From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: linux-integrity@vger.kernel.org
Cc: David Howells <dhowells@redhat.com>,
Mimi Zohar <zohar@linux.ibm.com>,
James Bottomley <jejb@linux.ibm.com>,
Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
stable@vger.kernel.org, James Morris <jmorris@namei.org>,
"Serge E. Hallyn" <serge@hallyn.com>,
David Safford <safford@watson.ibm.com>,
keyrings@vger.kernel.org (open list:KEYS-TRUSTED),
linux-security-module@vger.kernel.org (open list:SECURITY
SUBSYSTEM), linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v3 2/3] KEYS: trusted: Fix migratable=1 failing
Date: Tue, 13 Oct 2020 03:28:14 +0300 [thread overview]
Message-ID: <20201013002815.40256-3-jarkko.sakkinen@linux.intel.com> (raw)
In-Reply-To: <20201013002815.40256-1-jarkko.sakkinen@linux.intel.com>
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 c7b1701cdac5..7a937c3c5283 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:
--
2.25.1
next prev parent reply other threads:[~2020-10-13 2:41 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20201013002815.40256-1-jarkko.sakkinen@linux.intel.com>
2020-10-13 0:28 ` [PATCH v3 1/3] KEYS: trusted: Fix incorrect handling of tpm_get_random() Jarkko Sakkinen
2020-10-13 0:28 ` Jarkko Sakkinen [this message]
2020-10-13 0:28 ` [PATCH v3 3/3] KEYS: trusted: Reserve TPM for seal and unseal operations Jarkko Sakkinen
2020-10-13 0:58 ` James Bottomley
2020-10-13 2:39 ` Jarkko Sakkinen
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