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authorKirill Tkhai2017-05-02 20:11:52 +0300
committerEric W. Biederman2017-07-20 07:46:06 -0500
commit64db4c7f4c1dde23d47b60f887000e28f82b268f (patch)
treee7f344fb2015e7c138fc1d05804da2969c205be9 /crypto
parenta2b426267c56773201f968fdb5eda6ab9ae94e34 (diff)
security: Use user_namespace::level to avoid redundant iterations in cap_capable()
When ns->level is not larger then cred->user_ns->level, then ns can't be cred->user_ns's descendant, and there is no a sense to search in parents. So, break the cycle earlier and skip needless iterations. v2: Change comment on suggested by Andy Lutomirski. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'crypto')
0 files changed, 0 insertions, 0 deletions