Daniel Borkmann 08389d8882 bpf: Add kconfig knob for disabling unpriv bpf by default ... Add a kconfig knob which allows for unprivileged bpf to be disabled by default. If set, the knob sets /proc/sys/kernel/unprivileged_bpf_disabled to value of 2. This still allows a transition of 2 -> {0,1} through an admin. Similarly, this also still keeps 1 -> {1} behavior intact, so that once set to permanently disabled, it cannot be undone aside from a reboot. We've also added extra2 with max of 2 for the procfs handler, so that an admin still has a chance to toggle between 0 <-> 2. Either way, as an additional alternative, applications can make use of CAP_BPF that we added a while ago. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/74ec548079189e4e4dffaeb42b8987bb3c852eee.1620765074.git.daniel@iogearbox.net		2021-05-11 13:56:16 -07:00
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abi.rst	Documentation: fix multiple typos found in the admin-guide subdirectory	2020-12-08 10:27:56 -07:00
fs.rst	Update Documentation/admin-guide/sysctl/fs.rst	2021-01-28 15:45:10 -07:00
index.rst
kernel.rst	bpf: Add kconfig knob for disabling unpriv bpf by default	2021-05-11 13:56:16 -07:00
net.rst	net: change netdev_unregister_timeout_secs min value to 1	2021-03-25 17:24:06 -07:00
sunrpc.rst
user.rst	time/namespace: Add max_time_namespaces ucount	2020-04-07 12:37:21 +02:00
vm.rst	mm/vmscan: restore zone_reclaim_mode ABI	2021-02-24 13:38:34 -08:00