net: Use ns_capable_noaudit() when determining net sysctl permissions
The capability check should not be audited since it is only being used to determine the inode permissions. A failed check does not indicate a violation of security policy but, when an LSM is enabled, a denial audit message was being generated. The denial audit message caused confusion for some application authors because root-running Go applications always triggered the denial. To prevent this confusion, the capability check in net_ctl_permissions() is switched to the noaudit variant. BugLink: https://launchpad.net/bugs/1465724Signed-off-by: Tyler Hicks <tyhicks@canonical.com> Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com> Signed-off-by: James Morris <james.l.morris@oracle.com>
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