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#
# Makefile for the Linux AX.25 layer.
#

obj-$(CONFIG_AX25) += ax25.o

ax25-y	 := ax25_addr.o ax25_dev.o ax25_iface.o ax25_in.o ax25_ip.o ax25_out.o \
	    ax25_route.o ax25_std_in.o ax25_std_subr.o ax25_std_timer.o \
	    ax25_subr.o ax25_timer.o ax25_uid.o af_ax25.o
ax25-$(CONFIG_AX25_DAMA_SLAVE) += ax25_ds_in.o ax25_ds_subr.o ax25_ds_timer.o
ax25-$(CONFIG_SYSCTL) += sysctl_net_ax25.o
ummary='commit info' class='commit-info'> authorTejun Heo <tj@kernel.org>2017-01-26 16:47:28 -0500 committerTejun Heo <tj@kernel.org>2017-01-26 16:47:28 -0500 commit07cd12945551b63ecb1a349d50a6d69d1d6feb4a (patch) tree75f65eba7eac9277971082a2d5a4cf1370562c0c /net/switchdev parent7ce7d89f48834cefece7804d38fc5d85382edf77 (diff)
cgroup: don't online subsystems before cgroup_name/path() are operational
While refactoring cgroup creation, a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") incorrectly onlined subsystems before the new cgroup is associated with it kernfs_node. This is fine for cgroup proper but cgroup_name/path() depend on the associated kernfs_node and if a subsystem makes the new cgroup_subsys_state visible, which they're allowed to after onlining, it can lead to NULL dereference. The current code performs cgroup creation and subsystem onlining in cgroup_create() and cgroup_mkdir() makes the cgroup and subsystems visible afterwards. There's no reason to online the subsystems early and we can simply drop cgroup_apply_control_enable() call from cgroup_create() so that the subsystems are onlined and made visible at the same time. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Fixes: a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") Cc: stable@vger.kernel.org # v4.6+
Diffstat (limited to 'net/switchdev')