Waiman Long 5657c11678 sched/core: Fix NULL pointer access fault in sched_setaffinity() with non-SMP configs ... The kernel commit 9a5418bc48 ("sched/core: Use kfree_rcu() in do_set_cpus_allowed()") introduces a bug for kernels built with non-SMP configs. Calling sched_setaffinity() on such a uniprocessor kernel will cause cpumask_copy() to be called with a NULL pointer leading to general protection fault. This is not really a problem in real use cases as there aren't that many uniprocessor kernel configs in use and calling sched_setaffinity() on such a uniprocessor system doesn't make sense. Fix this problem by making sure cpumask_copy() will not be called in such a case. Fixes: 9a5418bc48 ("sched/core: Use kfree_rcu() in do_set_cpus_allowed()") Reported-by: kernel test robot <yujie.liu@intel.com> Signed-off-by: Waiman Long <longman@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Acked-by: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20230115193122.563036-1-longman@redhat.com		2023-01-16 10:07:25 +01:00
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autogroup.c
autogroup.h
build_policy.c
build_utility.c
clock.c
completion.c	sched/completion: Add wait_for_completion_state()	2022-09-07 21:53:49 +02:00
core.c	sched/core: Fix NULL pointer access fault in sched_setaffinity() with non-SMP configs	2023-01-16 10:07:25 +01:00
core_sched.c	sched: Rename task_running() to task_on_cpu()	2022-09-07 21:53:47 +02:00
cpuacct.c
cpudeadline.c
cpudeadline.h
cpufreq.c
cpufreq_schedutil.c	Revert "cpufreq: schedutil: Move max CPU capacity to sugov_policy"	2022-11-22 19:56:52 +01:00
cpupri.c
cpupri.h
cputime.c
deadline.c	sched: Introduce affinity_context	2022-10-27 11:01:21 +02:00
debug.c	- Yu Zhao's Multi-Gen LRU patches are here. They've been under test in	2022-10-10 17:53:04 -07:00
fair.c	sched/fair: Fixes for capacity inversion detection	2023-01-13 11:40:21 +01:00
features.h
idle.c
isolation.c
loadavg.c
Makefile
membarrier.c
pelt.c
pelt.h
psi.c	sched/psi: Stop relying on timer_pending() for poll_work rescheduling	2022-10-30 10:12:14 +01:00
rt.c	sched: Introduce struct balance_callback to avoid CFI mismatches	2022-10-17 16:41:25 +02:00
sched-pelt.h
sched.h	sched: Enforce user requested affinity	2022-10-27 11:01:22 +02:00
smp.h
stats.c
stats.h	sched/psi: Use task->psi_flags to clear in CPU migration	2022-10-30 10:12:15 +01:00
stop_task.c	sched: Add update_current_exec_runtime helper	2022-08-27 00:05:35 +02:00
swait.c
topology.c
wait.c	wait: Return number of exclusive waiters awaken	2022-11-16 11:33:03 -07:00
wait_bit.c	wait_on_bit: add an acquire memory barrier	2022-08-26 09:30:25 -07:00