I have just noticed that   result of the cat /proc/keys command
displays different output for root and regular user, and the output for the root
user does not include keys of other users

(I see implementation for this in kernel tree security/keys/proc.c - proc_key_users_show()


Is it some kind of security policy in Linux ? because I used to think that as a superuser I have access for all
information.
(kernel 2.6.36.2)

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