trafgen-libs = $(shell pkg-config --libs libnl-3.0) \ $(shell pkg-config --libs libnl-genl-3.0) \ -lm trafgen-objs = xmalloc.o \ xio.o \ xutils.o \ mac80211.o \ ring_tx.o \ trafgen_lexer.yy.o \ trafgen_parser.tab.o \ trafgen.o trafgen-lex = trafgen_lexer.yy.o trafgen-yaac = trafgen_parser.tab.o ef='https://git.distanz.ch/cgit.cgi/linux/net-next.git/atom/net/ieee802154/Makefile?h=nds-private-remove' type='application/atom+xml'/>
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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/ieee802154/Makefile
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/ieee802154/Makefile')