------------[ cut here ]------------ WARNING: CPU: 0 PID: 3496 at kernel/events/core.c:3752 ctx_sched_in+0x12e/0x3ee kernel/events/core.c:3752 Modules linked in: CPU: 0 PID: 3496 Comm: syz-executor.0 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 : ffffffe00c9df910 gp : ffffffe004588b78 tp : ffffffe006380000 t0 : 0000000000000000 t1 : 0000000000000001 t2 : 0000000000000003 s0 : ffffffe00c9df980 s1 : ffffffe009f2d000 a0 : ffffffe067d5c118 a1 : 00000000000f0000 a2 : 0000000000000002 a3 : ffffffe00027a674 a4 : ffffffe006381000 a5 : 0000000040000002 a6 : 0000000000f00000 a7 : ffffffe000281354 s2 : 0000000000000007 s3 : ffffffe009f2d140 s4 : ffffffe006380000 s5 : 0000000000000002 s6 : ffffffe00458c0d0 s7 : ffffffe067d5bf70 s8 : 0000000000000007 s9 : ffffffe067d5c118 s10: ffffffe009f2d000 s11: ffffffe009f2d008 t3 : 27fdc7a11b839100 t4 : 0000000000000018 t5 : 0008583b00000000 t6 : 00000000c9829039 status: 0000000000000100 badaddr: 0000000000000000 cause: 0000000000000003 Call Trace: [] ctx_sched_in+0x12e/0x3ee kernel/events/core.c:3752 [] perf_event_sched_in+0x38/0x74 kernel/events/core.c:2680 [] perf_event_context_sched_in kernel/events/core.c:3817 [inline] [] __perf_event_task_sched_in+0x4ea/0x680 kernel/events/core.c:3860 [] perf_event_task_sched_in include/linux/perf_event.h:1210 [inline] [] finish_task_switch.isra.0+0x284/0x318 kernel/sched/core.c:4189 [] context_switch kernel/sched/core.c:4325 [inline] [] __schedule+0x484/0xe8c kernel/sched/core.c:5073 [] preempt_schedule_common+0x4e/0xde kernel/sched/core.c:5233 [] preempt_schedule+0x34/0x36 kernel/sched/core.c:5258 [] smp_call_function_single+0x2a0/0x2ba kernel/smp.c:518 [] task_function_call+0x90/0xee kernel/events/core.c:119 [] perf_install_in_context+0x174/0x2e6 kernel/events/core.c:2902 [] __do_sys_perf_event_open+0x10ea/0x199e kernel/events/core.c:12169 [] sys_perf_event_open+0x34/0x46 kernel/events/core.c:11775 [] ret_from_syscall+0x0/0x2