INFO: rcu_sched detected stalls on CPUs/tasks:
	(detected by 0, t=125002 jiffies, g=3905, c=3904, q=5)
All QSes seen, last rcu_sched kthread activity 125002 (4294818332-4294693330), jiffies_till_next_fqs=3, root ->qsmask 0x0
syz-executor2   R  running task    27936  3910   3691 0x0000000c
Call Trace:
 <IRQ>
 sched_show_task+0x2ed/0x3c0 kernel/sched/core.c:5199
 print_other_cpu_stall kernel/rcu/tree.c:1480 [inline]
 check_cpu_stall kernel/rcu/tree.c:1598 [inline]
 __rcu_pending kernel/rcu/tree.c:3362 [inline]
 rcu_pending kernel/rcu/tree.c:3424 [inline]
 rcu_check_callbacks+0x172e/0x1de0 kernel/rcu/tree.c:2764
 update_process_times+0x30/0x60 kernel/time/timer.c:1628
 tick_sched_handle+0x85/0x160 kernel/time/tick-sched.c:162
 tick_sched_timer+0x42/0x120 kernel/time/tick-sched.c:1176
 __run_hrtimer kernel/time/hrtimer.c:1210 [inline]
 __hrtimer_run_queues+0x2c8/0xb50 kernel/time/hrtimer.c:1274
 hrtimer_interrupt+0x1c2/0x5e0 kernel/time/hrtimer.c:1308
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1025 [inline]
 smp_apic_timer_interrupt+0xc9/0x4c0 arch/x86/kernel/apic/apic.c:1050
 apic_timer_interrupt+0xa9/0xb0 arch/x86/entry/entry_64.S:920
 </IRQ>
RIP: 0010:check_memory_region+0x1f/0x190 mm/kasan/kasan.c:266
RSP: 0018:ffff8801a649f908 EFLAGS: 00000216 ORIG_RAX: ffffffffffffff11
RAX: ffff7fffffffffff RBX: 0000000000000002 RCX: ffffffff83b7d25e
RDX: 0000000000000001 RSI: 0000000000000002 RDI: ffffc900018185a4
RBP: ffff8801a649f910 R08: ffffed0034c93f40 R09: ffffed0034c93f40
R10: 0000000000000001 R11: ffffed0034c93f40 R12: ffffc900018185a4
R13: ffff8801a649fa00 R14: ffff8801d6661200 R15: dffffc0000000000
 memcpy+0x37/0x50 mm/kasan/kasan.c:303
 memcpy include/linux/string.h:344 [inline]
 cvt_s16_to_native sound/core/oss/mulaw.c:164 [inline]
 mulaw_decode+0x50e/0x740 sound/core/oss/mulaw.c:195
 mulaw_transfer+0x222/0x270 sound/core/oss/mulaw.c:273
 snd_pcm_plug_write_transfer+0x20b/0x390 sound/core/oss/pcm_plugin.c:611
 snd_pcm_oss_write2+0x22e/0x3c0 sound/core/oss/pcm_oss.c:1311
 snd_pcm_oss_write1 sound/core/oss/pcm_oss.c:1372 [inline]
 snd_pcm_oss_write+0x4c1/0x690 sound/core/oss/pcm_oss.c:2646
 __vfs_write+0xef/0x740 fs/read_write.c:480
 vfs_write+0x189/0x510 fs/read_write.c:544
 SYSC_write fs/read_write.c:589 [inline]
 SyS_write+0xd4/0x1a0 fs/read_write.c:581
 entry_SYSCALL_64_fastpath+0x23/0x9a
RIP: 0033:0x452ac9
RSP: 002b:00007fa8c7439c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 0000000000452ac9
RDX: 00000000fffffee4 RSI: 0000000020735ee0 RDI: 0000000000000016
RBP: 00000000000005c9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f6b78
R13: 00000000ffffffff R14: 00007fa8c743a6d4 R15: 0000000000000000
rcu_sched kthread starved for 125002 jiffies! g3905 c3904 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=1
rcu_sched       R  running task    29712     8      2 0x80000000
Call Trace:
 context_switch kernel/sched/core.c:2800 [inline]
 __schedule+0x850/0x1e10 kernel/sched/core.c:3376
 schedule+0x7c/0x1a0 kernel/sched/core.c:3435
 schedule_timeout+0x46d/0x1150 kernel/time/timer.c:1816
 rcu_gp_kthread+0xbfd/0x19f0 kernel/rcu/tree.c:2231
 kthread+0x33c/0x400 kernel/kthread.c:238
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:524