WSL2-Linux-Kernel/security/keys
David Safford 0dcc35c1c2 KEYS: trusted: tpm2: Fix migratable logic
commit dda5384313 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: e5fb5d2c5a ("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>
2022-06-14 18:36:25 +02:00
..
encrypted-keys crypto: sha - split sha.h into sha1.h and sha2.h 2020-11-20 14:45:33 +11:00
trusted-keys KEYS: trusted: tpm2: Fix migratable logic 2022-06-14 18:36:25 +02:00
Kconfig security: keys: trusted: use ASN.1 TPM2 key format for the blobs 2021-04-14 16:30:30 +03:00
Makefile KEYS: remove CONFIG_KEYS_COMPAT 2019-12-12 23:41:17 +02:00
big_key.c security/keys: use kvfree_sensitive() 2021-01-21 16:16:09 +00:00
compat.c security/keys: remove compat_keyctl_instantiate_key_iov 2020-10-03 00:02:16 -04:00
compat_dh.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
dh.c mm, treewide: rename kzfree() to kfree_sensitive() 2020-08-07 11:33:22 -07:00
gc.c watch_queue: Add a key/keyring notification facility 2020-05-19 15:19:06 +01:00
internal.h security/keys: remove compat_keyctl_instantiate_key_iov 2020-10-03 00:02:16 -04:00
key.c certs: Fix blacklist flag type confusion 2021-01-21 16:16:10 +00:00
keyctl.c security: keys: delete repeated words in comments 2021-01-21 16:16:09 +00:00
keyctl_pkey.c KEYS: fix length validation in keyctl_pkey_params_get_2() 2022-04-08 14:22:51 +02:00
keyring.c security: keys: delete repeated words in comments 2021-01-21 16:16:09 +00:00
permission.c keys: Make the KEY_NEED_* perms an enum rather than a mask 2020-05-19 15:42:22 +01:00
persistent.c Revert "Merge tag 'keys-acl-20190703' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs" 2019-07-10 18:43:43 -07:00
proc.c keys: Fix proc_keys_next to increase position index 2020-04-16 10:10:50 -07:00
process_keys.c ucounts: Move get_ucounts from cred_alloc_blank to key_change_session_keyring 2021-10-20 10:34:20 -05:00
request_key.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
request_key_auth.c KEYS: Don't write out to userspace while holding key semaphore 2020-03-29 12:40:41 +01:00
sysctl.c proc/sysctl: add shared variables for range check 2019-07-18 17:08:07 -07:00
user_defined.c mm, treewide: rename kzfree() to kfree_sensitive() 2020-08-07 11:33:22 -07:00