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linux-xiaomi-chiron/include/linux/sched
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Jann Horn 0b9dc6c9f0 keys: safe concurrent user->{session,uid}_keyring access 
The current code can perform concurrent updates and reads on
user->session_keyring and user->uid_keyring. Add a comment to
struct user_struct to document the nontrivial locking semantics, and use
READ_ONCE() for unlocked readers and smp_store_release() for writers to
prevent memory ordering issues.

Fixes: 69664cf16a ("keys: don't generate user and user session keyrings unless they're accessed")
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: James Morris <james.morris@microsoft.com>
2019-04-10 10:29:50 -07:00
..
autogroup.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
clock.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
coredump.h oom, oom_reaper: do not enqueue same task twice 2019-02-01 15:46:23 -08:00
cpufreq.h sched/cpufreq: Prepare schedutil for Energy Aware Scheduling 2018-12-11 15:16:58 +01:00
cputime.h Merge branch 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup 2017-11-15 14:29:44 -08:00
deadline.h sched/headers: Simplify and clean up header usage in the scheduler 2018-03-04 12:39:29 +01:00
debug.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hotplug.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
idle.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
init.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
isolation.h sched: Fix various typos in comments 2018-12-03 11:55:42 +01:00
jobctl.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
loadavg.h sched: loadavg: make calc_load_n() public 2018-10-26 16:26:32 -07:00
mm.h mm/cma: add PF flag to force non cma alloc 2019-03-05 21:07:19 -08:00
nohz.h sched/nohz: Clean up nohz enter/exit 2018-03-09 07:59:19 +01:00
numa_balancing.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
prio.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rt.h Merge branch 'linus' into sched/core, to pick up fixes 2017-11-08 10:17:15 +01:00
signal.h sched/core: Convert signal_struct.sigcnt to refcount_t 2019-02-04 08:53:53 +01:00
smt.h x86/speculation: Rework SMT state change 2018-11-28 11:57:07 +01:00
stat.h sched: Fix various typos in comments 2018-12-03 11:55:42 +01:00
sysctl.h sched/topology: Introduce a sysctl for Energy Aware Scheduling 2019-01-27 12:29:37 +01:00
task.h sched/core: Convert task_struct.usage to refcount_t 2019-02-04 08:53:55 +01:00
task_stack.h sched/core: Convert task_struct.stack_refcount to refcount_t 2019-02-04 08:53:56 +01:00
topology.h sched/topology: Fix percpu data types in struct sd_data & struct s_data 2019-02-11 08:02:15 +01:00
user.h keys: safe concurrent user->{session,uid}_keyring access 2019-04-10 10:29:50 -07:00
wake_q.h sched/wake_q: Reduce reference counting for special users 2019-02-04 09:03:28 +01:00
xacct.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00