Tejun Heo cee0c33c54 cgroup: css_task_iter_skip()'d iterators must be advanced before accessed ... b636fd38dc ("cgroup: Implement css_task_iter_skip()") introduced css_task_iter_skip() which is used to fix task iterations skipping dying threadgroup leaders with live threads. Skipping is implemented as a subportion of full advancing but css_task_iter_next() forgot to fully advance a skipped iterator before determining the next task to visit causing it to return invalid task pointers. Fix it by making css_task_iter_next() fully advance the iterator if it has been skipped since the previous iteration. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: syzbot Link: http://lkml.kernel.org/r/00000000000097025d058a7fd785@google.com Fixes: b636fd38dc ("cgroup: Implement css_task_iter_skip()")		2019-06-05 09:54:34 -07:00
..
cgroup-internal.h	cgroup: make TRACE_CGROUP_PATH irq-safe	2019-04-19 11:26:49 -07:00
cgroup-v1.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
cgroup.c	cgroup: css_task_iter_skip()'d iterators must be advanced before accessed	2019-06-05 09:54:34 -07:00
cpuset.c	cgroup/cpuset: Update stale generate_sched_domains() comments	2019-04-19 19:44:14 +02:00
debug.c	kernel: cgroup: fix misuse of %x	2019-05-06 08:47:48 -07:00
freezer.c	cgroup: get rid of cgroup_freezer_frozen_exit()	2019-05-06 08:39:11 -07:00
legacy_freezer.c	cgroup: rename freezer.c into legacy_freezer.c	2019-04-19 11:26:48 -07:00
Makefile	cgroup: cgroup v2 freezer	2019-04-19 11:26:48 -07:00
namespace.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
pids.c	cgroup/pids: turn cgroup_subsys->free() into cgroup_subsys->release() to fix the accounting	2019-01-31 06:55:57 -08:00
rdma.c	IB/core: Simplify rdma cgroup registration	2019-01-18 13:43:10 -07:00
rstat.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00