------------[ cut here ]------------
WARNING: CPU: 0 PID: 5485 at kernel/events/core.c:2781 __perf_install_in_context+0x1c0/0x47c kernel/events/core.c:2781
Modules linked in:
CPU: 0 PID: 5485 Comm: syz-executor.0 Not tainted 5.12.0-rc5-syzkaller-00721-gb2b3d18fc20e #0
Hardware name: riscv-virtio,qemu (DT)
epc : __perf_install_in_context+0x1c0/0x47c kernel/events/core.c:2781
 ra : __perf_install_in_context+0x1c0/0x47c kernel/events/core.c:2781
epc : ffffffe00027d12e ra : ffffffe00027d12e sp : ffffffe02593baf0
 gp : ffffffe004588b08 tp : ffffffe0067ddf00 t0 : ffffffc4014a33f4
 t1 : 0000000000000001 t2 : 0000000000000000 s0 : ffffffe02593bb50
 s1 : ffffffe0095a0000 a0 : ffffffe067d5c118 a1 : 00000000000f0000
 a2 : ffffffd010a9f000 a3 : ffffffe00027d12e a4 : ffffffd010ab8230
 a5 : 0000000000003246 a6 : 0000000000f00000 a7 : ffffffe00027d02e
 s2 : ffffffe067d5bf70 s3 : ffffffe0095a00a8 s4 : ffffffe009ae1c00
 s5 : ffffffe0067ddf00 s6 : ffffffe067d5bf78 s7 : ffffffe00dba6c00
 s8 : ffffffe0067ddf00 s9 : ffffffe00458c0d0 s10: 0000000000000000
 s11: 0000000000000000 t3 : da5c25428e34b900 t4 : ffffffc404b27797
 t5 : ffffffc404b27799 t6 : ffffffe005a9bddc
status: 0000000000000100 badaddr: 0000000000000000 cause: 0000000000000003
Call Trace:
[<ffffffe00027d12e>] __perf_install_in_context+0x1c0/0x47c kernel/events/core.c:2781
[<ffffffe00026b630>] remote_function kernel/events/core.c:91 [inline]
[<ffffffe00026b630>] remote_function+0xa8/0xc0 kernel/events/core.c:71
[<ffffffe0001452cc>] generic_exec_single+0x1a6/0x212 kernel/smp.c:293
[<ffffffe00014546c>] smp_call_function_single+0x134/0x2ba kernel/smp.c:513
[<ffffffe00026a8ba>] task_function_call+0x90/0xee kernel/events/core.c:119
[<ffffffe00027bf4e>] perf_install_in_context+0x174/0x2e6 kernel/events/core.c:2902
[<ffffffe000288690>] __do_sys_perf_event_open+0x10ea/0x199e kernel/events/core.c:12169
[<ffffffe00028f3e6>] sys_perf_event_open+0x34/0x46 kernel/events/core.c:11775
[<ffffffe000005572>] ret_from_syscall+0x0/0x2