diff options
| author | David Safford <david.safford@gmail.com> | 2022-06-07 14:07:57 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-14 18:41:45 +0200 |
| commit | 776d2c552396e827d8fbaf9affefcd4aba4ad94b (patch) | |
| tree | cb031ef47eb2351cb17969ac2dc426bd469c4a25 /include/uapi/linux/virtio_config.h | |
| parent | 3ff11913938bc00685cc05afed0af97bebedf852 (diff) | |
KEYS: trusted: tpm2: Fix migratable logic
commit dda5384313a40ecbaafd8a9a80f47483255e4c4d upstream.
When creating (sealing) a new trusted key, migratable
trusted keys have the FIXED_TPM and FIXED_PARENT attributes
set, and non-migratable keys don't. This is backwards, and
also causes creation to fail when creating a migratable key
under a migratable parent. (The TPM thinks you are trying to
seal a non-migratable blob under a migratable parent.)
The following simple patch fixes the logic, and has been
tested for all four combinations of migratable and non-migratable
trusted keys and parent storage keys. With this logic, you will
get a proper failure if you try to create a non-migratable
trusted key under a migratable parent storage key, and all other
combinations work correctly.
Cc: stable@vger.kernel.org # v5.13+
Fixes: e5fb5d2c5a03 ("security: keys: trusted: Make sealed key properly interoperable")
Signed-off-by: David Safford <david.safford@gmail.com>
Reviewed-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/uapi/linux/virtio_config.h')
0 files changed, 0 insertions, 0 deletions