------------[ cut here ]------------
WARNING: CPU: 1 PID: 8685 at kernel/events/core.c:3752 ctx_sched_in+0x12e/0x3ee kernel/events/core.c:3752
Modules linked in:
CPU: 1 PID: 8685 Comm: syz-executor.1 Not tainted 5.12.0-rc8-syzkaller-00194-g18a3c5f7abfd #0
Hardware name: riscv-virtio,qemu (DT)
epc : ctx_sched_in+0x12e/0x3ee kernel/events/core.c:3752
 ra : ctx_sched_in+0x12e/0x3ee kernel/events/core.c:3752
epc : ffffffe00027a674 ra : ffffffe00027a674 sp : ffffffe025bab900
 gp : ffffffe004588b78 tp : ffffffe00597df00 t0 : 0000000000000000
 t1 : 0000000000000001 t2 : 00000000000f4240 s0 : ffffffe025bab970
 s1 : ffffffe007759800 a0 : ffffffe067d76fa8 a1 : 00000000000f0000
 a2 : 0000000000000002 a3 : ffffffe00027a674 a4 : ffffffe00597ef00
 a5 : 0000000040000002 a6 : 0000000000f00000 a7 : ffffffe000281354
 s2 : 0000000000000007 s3 : ffffffe007759940 s4 : ffffffe00597df00
 s5 : 0000000000000002 s6 : ffffffe00458c0d0 s7 : ffffffe067d76e00
 s8 : 0000000000000007 s9 : ffffffe067d76fa8 s10: ffffffe007759800
 s11: ffffffe007759808 t3 : 431c44ea261e9500 t4 : ffffffc4049dc7b2
 t5 : ffffffc4049dc7ba t6 : 0000000000040000
status: 0000000000000100 badaddr: 0000000000000000 cause: 0000000000000003
Call Trace:
[<ffffffe00027a674>] ctx_sched_in+0x12e/0x3ee kernel/events/core.c:3752
[<ffffffe00027a96c>] perf_event_sched_in+0x38/0x74 kernel/events/core.c:2680
[<ffffffe00028142e>] perf_event_context_sched_in kernel/events/core.c:3817 [inline]
[<ffffffe00028142e>] __perf_event_task_sched_in+0x4ea/0x680 kernel/events/core.c:3860
[<ffffffe0000850ce>] perf_event_task_sched_in include/linux/perf_event.h:1210 [inline]
[<ffffffe0000850ce>] finish_task_switch.isra.0+0x284/0x318 kernel/sched/core.c:4189
[<ffffffe002a97f50>] context_switch kernel/sched/core.c:4325 [inline]
[<ffffffe002a97f50>] __schedule+0x484/0xe8c kernel/sched/core.c:5073
[<ffffffe002a989bc>] schedule+0x64/0x166 kernel/sched/core.c:5152
[<ffffffe00013f924>] freezable_schedule include/linux/freezer.h:172 [inline]
[<ffffffe00013f924>] futex_wait_queue_me+0x14c/0x23a kernel/futex.c:2606
[<ffffffe00014133e>] futex_wait+0x122/0x2c2 kernel/futex.c:2708
[<ffffffe000143840>] do_futex+0xa0/0xe62 kernel/futex.c:3734
[<ffffffe0001447c4>] __do_sys_futex kernel/futex.c:3797 [inline]
[<ffffffe0001447c4>] sys_futex+0x1c2/0x280 kernel/futex.c:3763
[<ffffffe000005578>] ret_from_syscall+0x0/0x2