------------[ cut here ]------------
IS_ERR(old)
WARNING: kernel/tracepoint.c:367 at tracepoint_remove_func kernel/tracepoint.c:367 [inline], CPU#0: syz.3.1362/12590
WARNING: kernel/tracepoint.c:367 at tracepoint_probe_unregister+0x837/0xd10 kernel/tracepoint.c:513, CPU#0: syz.3.1362/12590
Modules linked in:
CPU: 0 UID: 0 PID: 12590 Comm: syz.3.1362 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:tracepoint_remove_func kernel/tracepoint.c:367 [inline]
RIP: 0010:tracepoint_probe_unregister+0x837/0xd10 kernel/tracepoint.c:513
Code: cc e8 6d 2b fe ff 48 8d 73 f0 48 c7 c2 20 dc 09 82 48 c7 c7 40 31 87 8e e8 e6 79 e2 ff eb ba bb fe ff ff ff e8 4a 2b fe ff 90 <0f> 0b 90 eb ac e8 3f 2b fe ff 49 89 dd 45 31 ff 49 be 00 00 00 00
RSP: 0018:ffffc90004817ab8 EFLAGS: 00010287
RAX: 0000000000001655 RBX: 00000000fffffffe RCX: ffffc90006f69000
RDX: 0000000000080000 RSI: ffffffff8209ed16 RDI: ffff888029869e80
RBP: ffff88801beb3dc8 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff821007e0
R13: 0000000000000000 R14: ffffffff8e878b40 R15: 0000000000000001
FS:  00007ff304b016c0(0000) GS:ffff88812434a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b311f0ff8 CR3: 00000000429b0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 unregister_trace_sched_switch include/trace/events/sched.h:220 [inline]
 tracing_sched_unregister kernel/trace/trace_sched_switch.c:87 [inline]
 tracing_stop_sched_switch kernel/trace/trace_sched_switch.c:129 [inline]
 tracing_stop_cmdline_record+0x66/0xa0 kernel/trace/trace_sched_switch.c:140
 trace_event_enable_cmd_record+0x16a/0x260 kernel/trace/trace_events.c:756
 set_tracer_flag+0x1df/0x4e0 kernel/trace/trace.c:4554
 trace_options_core_write+0x17a/0x250 kernel/trace/trace.c:8801
 do_loop_readv_writev fs/read_write.c:852 [inline]
 do_loop_readv_writev fs/read_write.c:837 [inline]
 vfs_writev+0x5ea/0xe10 fs/read_write.c:1061
 do_writev+0x13e/0x340 fs/read_write.c:1105
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff303b9c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff304b01028 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00007ff303e15fa0 RCX: 00007ff303b9c799
RDX: 0000000000000003 RSI: 0000200000000080 RDI: 0000000000000003
RBP: 00007ff303c32c99 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff303e16038 R14: 00007ff303e15fa0 R15: 00007ffe7d1c7068
 </TASK>