WSL2-Linux-Kernel/security
Krister Johansen 4548b683b7 Introduce a sysctl that modifies the value of PROT_SOCK.
Add net.ipv4.ip_unprivileged_port_start, which is a per namespace sysctl
that denotes the first unprivileged inet port in the namespace.  To
disable all privileged ports set this to zero.  It also checks for
overlap with the local port range.  The privileged and local range may
not overlap.

The use case for this change is to allow containerized processes to bind
to priviliged ports, but prevent them from ever being allowed to modify
their container's network configuration.  The latter is accomplished by
ensuring that the network namespace is not a child of the user
namespace.  This modification was needed to allow the container manager
to disable a namespace's priviliged port restrictions without exposing
control of the network namespace to processes in the user namespace.

Signed-off-by: Krister Johansen <kjlx@templeofstupid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-24 12:10:51 -05:00
..
apparmor apparmor: fix change_hat not finding hat after policy replacement 2016-11-21 18:01:28 +11:00
integrity ima: platform-independent hash value 2016-12-20 09:48:46 -08:00
keys Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
loadpin LSM: LoadPin: provide enablement CONFIG 2016-05-17 20:10:30 +10:00
selinux Introduce a sysctl that modifies the value of PROT_SOCK. 2017-01-24 12:10:51 -05:00
smack Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-12-16 10:24:44 -08:00
tomoyo mm: add locked parameter to get_user_pages_remote() 2016-12-14 16:04:08 -08:00
yama Yama: allow access for the current ptrace parent 2016-12-05 11:48:01 +11:00
Kconfig - force check_object_size() to be inline too 2016-09-07 14:03:49 -07:00
Makefile LSM: LoadPin for kernel file loading restrictions 2016-04-21 10:47:27 +10:00
commoncap.c xattr: Add __vfs_{get,set,remove}xattr helpers 2016-10-07 20:10:44 -04:00
device_cgroup.c security/device_cgroup: Fix RCU_LOCKDEP_WARN() condition 2015-09-03 18:13:10 -07:00
inode.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-10 20:16:43 -07:00
lsm_audit.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2016-10-04 14:48:27 -07:00
min_addr.c mmap_min_addr check CAP_SYS_RAWIO only for write 2010-04-23 08:56:31 +10:00
security.c security, overlayfs: Provide hook to correctly label newly created files 2016-08-08 20:46:46 -04:00