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authorDmitry Kasatkin <d.kasatkin@samsung.com>2014-06-17 11:56:59 +0300
committerMimi Zohar <zohar@linux.vnet.ibm.com>2014-07-17 09:35:17 -0400
commit32c4741cb66703a3c282f41d77deff4afd93342a (patch)
tree63797ca87c02956f5dbc4552a0aa9dc058d6cd52 /kernel/system_keyring.c
parentffb70f61bab1482a3bd0f85fd8f1e9c9909df2ca (diff)
downloadblackbird-op-linux-32c4741cb66703a3c282f41d77deff4afd93342a.tar.gz
blackbird-op-linux-32c4741cb66703a3c282f41d77deff4afd93342a.zip
KEYS: validate certificate trust only with builtin keys
Instead of allowing public keys, with certificates signed by any key on the system trusted keyring, to be added to a trusted keyring, this patch further restricts the certificates to those signed only by builtin keys on the system keyring. This patch defines a new option 'builtin' for the kernel parameter 'keys_ownerid' to allow trust validation using builtin keys. Simplified Mimi's "KEYS: define an owner trusted keyring" patch Changelog v7: - rename builtin_keys to use_builtin_keys Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com> Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/system_keyring.c')
-rw-r--r--kernel/system_keyring.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/system_keyring.c b/kernel/system_keyring.c
index 52ebc70263f4..875f64e8935b 100644
--- a/kernel/system_keyring.c
+++ b/kernel/system_keyring.c
@@ -89,6 +89,7 @@ static __init int load_system_certificate_list(void)
pr_err("Problem loading in-kernel X.509 certificate (%ld)\n",
PTR_ERR(key));
} else {
+ set_bit(KEY_FLAG_BUILTIN, &key_ref_to_ptr(key)->flags);
pr_notice("Loaded X.509 cert '%s'\n",
key_ref_to_ptr(key)->description);
key_ref_put(key);
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