------------[ cut here ]------------
WARNING: CPU: 0 PID: 19125 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 0 PID: 19125 Comm: syz.2.3916 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 7d 94 d8 ff 85 db 48 c7 c0 f2 ff ff ff 49 0f 44 c6 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 00 91 d8 ff <0f> 0b e9 1c ff ff ff 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c ea fe
RSP: 0018:ffffc90000007918 EFLAGS: 00010006
RAX: ffffffff81a08ea0 RBX: 0000000000000008 RCX: ffff88807c4f3b80
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff88807c4f3b87 R09: 1ffff1100f89e770
R10: dffffc0000000000 R11: ffffed100f89e771 R12: ffff88807c4f5308
R13: 00007ffffffff000 R14: ffffc90000007988 R15: 0000000000000000
FS:  00007f344d80e6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000001 CR3: 0000000042451000 CR4: 00000000003506f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
 ____bpf_probe_read_compat kernel/trace/bpf_trace.c:281 [inline]
 bpf_probe_read_compat+0xdd/0x170 kernel/trace/bpf_trace.c:277
 bpf_prog_37e25c228831dae9+0x38/0x1e4
 bpf_dispatcher_nop_func include/linux/bpf.h:888 [inline]
 __bpf_prog_run include/linux/filter.h:628 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 bpf_overflow_handler+0x1c2/0x4a0 kernel/events/core.c:10297
 __perf_event_overflow+0x364/0x530 kernel/events/core.c:9515
 perf_swevent_hrtimer+0x41b/0x5b0 kernel/events/core.c:10934
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x4ad/0xb70 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x3bb/0x8d0 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
 __sysvec_apic_timer_interrupt+0x137/0x4a0 arch/x86/kernel/apic/apic.c:1114
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0x9b/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:perf_ioctl+0x20d8/0x2340 kernel/events/core.c:5960
Code: 00 00 00 49 c7 46 28 00 00 00 00 49 c7 46 30 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 84 24 60 02 00 00 0f 85 4b 01 00 00 <4c> 89 f8 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 81 f7 dd
RSP: 0018:ffffc90002337c20 EFLAGS: 00000246
RAX: 625afdd7a1915900 RBX: ffff88805ff1c400 RCX: 0000000000080000
RDX: ffffc9000f9cb000 RSI: 00000000000013f1 RDI: 00000000000013f2
RBP: ffffc90002337ed8 R08: ffff88805ff1c557 R09: 1ffff1100bfe38aa
R10: dffffc0000000000 R11: ffffed100bfe38ab R12: 0000000040042408
R13: f8f8f8f8f8f8f8f8 R14: fffff52000466f98 R15: 0000000000000000
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f344f5d3eb9
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:00007f344d80e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f344f84f090 RCX: 00007f344f5d3eb9
RDX: 0000000000000003 RSI: 0000000040042408 RDI: 0000000000000007
RBP: 00007f344f641c1f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f344f84f128 R14: 00007f344f84f090 R15: 00007fffe57a2268
 </TASK>
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	00 49 c7             	add    %cl,-0x39(%rcx)
   5:	46 28 00             	rex.RX sub %r8b,(%rax)
   8:	00 00                	add    %al,(%rax)
   a:	00 49 c7             	add    %cl,-0x39(%rcx)
   d:	46 30 00             	rex.RX xor %r8b,(%rax)
  10:	00 00                	add    %al,(%rax)
  12:	00 65 48             	add    %ah,0x48(%rbp)
  15:	8b 04 25 28 00 00 00 	mov    0x28,%eax
  1c:	48 3b 84 24 60 02 00 	cmp    0x260(%rsp),%rax
  23:	00
  24:	0f 85 4b 01 00 00    	jne    0x175
* 2a:	4c 89 f8             	mov    %r15,%rax <-- trapping instruction
  2d:	48 8d 65 d8          	lea    -0x28(%rbp),%rsp
  31:	5b                   	pop    %rbx
  32:	41 5c                	pop    %r12
  34:	41 5d                	pop    %r13
  36:	41 5e                	pop    %r14
  38:	41 5f                	pop    %r15
  3a:	5d                   	pop    %rbp
  3b:	c3                   	ret
  3c:	e8                   	.byte 0xe8
  3d:	81                   	.byte 0x81
  3e:	f7 dd                	neg    %ebp