------------[ cut here ]------------
IS_ERR(old)
WARNING: kernel/tracepoint.c:369 at tracepoint_remove_func kernel/tracepoint.c:369 [inline], CPU#1: syz.0.1117/10129
WARNING: kernel/tracepoint.c:369 at tracepoint_probe_unregister+0x837/0xd10 kernel/tracepoint.c:515, CPU#1: syz.0.1117/10129
Modules linked in:
CPU: 1 UID: 0 PID: 10129 Comm: syz.0.1117 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:tracepoint_remove_func kernel/tracepoint.c:369 [inline]
RIP: 0010:tracepoint_probe_unregister+0x837/0xd10 kernel/tracepoint.c:515
Code: cc e8 5d 23 fe ff 48 8d 73 f0 48 c7 c2 b0 b3 09 82 48 c7 c7 80 2f 87 8e e8 86 2f e2 ff eb ba bb fe ff ff ff e8 3a 23 fe ff 90 <0f> 0b 90 eb ac e8 2f 23 fe ff 49 89 dd 45 31 ff 49 be 00 00 00 00
RSP: 0018:ffffc90003a778a8 EFLAGS: 00010283
RAX: 000000000000164f RBX: 00000000fffffffe RCX: ffffc90006bc4000
RDX: 0000000000080000 RSI: ffffffff8209c4a6 RDI: ffff888036d88000
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff821018e0
R13: 0000000000000202 R14: 0000000000000002 R15: ffffffff8e9a8e40
FS:  00007f156c9d46c0(0000) GS:ffff88812447d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b34414ff8 CR3: 0000000074378000 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
 __ftrace_event_enable_disable+0x5c4/0x6f0 kernel/trace/trace_events.c:821
 ftrace_event_enable_disable kernel/trace/trace_events.c:907 [inline]
 ftrace_clear_events kernel/trace/trace_events.c:1030 [inline]
 ftrace_event_set_open+0x224/0x380 kernel/trace/trace_events.c:2801
 do_dentry_open+0x6d8/0x1660 fs/open.c:947
 vfs_open+0x82/0x3f0 fs/open.c:1079
 do_open fs/namei.c:4699 [inline]
 path_openat+0x208c/0x31a0 fs/namei.c:4858
 do_file_open+0x20e/0x430 fs/namei.c:4887
 do_sys_openat2+0x10d/0x1e0 fs/open.c:1364
 do_sys_open fs/open.c:1370 [inline]
 __do_sys_openat fs/open.c:1386 [inline]
 __se_sys_openat fs/open.c:1381 [inline]
 __x64_sys_openat+0x12d/0x210 fs/open.c:1381
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x10b/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f156bb9cdd9
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:00007f156c9d4028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f156be15fa0 RCX: 00007f156bb9cdd9
RDX: 0000000000020201 RSI: 0000200000000200 RDI: ffffffffffffff9c
RBP: 00007f156bc32d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f156be16038 R14: 00007f156be15fa0 R15: 00007ffc9746a478
 </TASK>