tpm2_load_cmd incorrectly checks options->keyhandle also for the legacy format, as also implied by the inline comment. Check options->keyhandle when ASN.1 is loaded.
Cc: James Bottomey <[email protected]> Cc: [email protected] # v5.13+ Fixes: f2219745250f ("security: keys: trusted: use ASN.1 TPM2 key format for the blobs") Signed-off-by: Jarkko Sakkinen <[email protected]> --- security/keys/trusted-keys/trusted_tpm2.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/security/keys/trusted-keys/trusted_tpm2.c b/security/keys/trusted-keys/trusted_tpm2.c index 8b7dd73d94c1..4f8207bf52a7 100644 --- a/security/keys/trusted-keys/trusted_tpm2.c +++ b/security/keys/trusted-keys/trusted_tpm2.c @@ -400,12 +400,11 @@ static int tpm2_load_cmd(struct tpm_chip *chip, /* old form */ blob = payload->blob; payload->old_format = 1; + } else { + if (!options->keyhandle) + return -EINVAL; } - /* new format carries keyhandle but old format doesn't */ - if (!options->keyhandle) - return -EINVAL; - /* must be big enough for at least the two be16 size counts */ if (payload->blob_len < 4) return -EINVAL; -- 2.45.1
