------------[ cut here ]------------
WARNING: CPU: 1 PID: 10647 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 1 PID: 10647 Comm: syz.0.2072 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 7d 90 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 8d 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:ffffc90000dd0918 EFLAGS: 00010006
RAX: ffffffff81a0a790 RBX: 0000000000000008 RCX: ffff888026dc0000
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888026dc0007 R09: 1ffff11004db8000
R10: dffffc0000000000 R11: ffffed1004db8001 R12: ffff888026dc1788
R13: 00007ffffffff000 R14: ffffc90000dd0988 R15: 0000000020000000
FS:  00007fc2623b36c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000001 CR3: 000000002731d000 CR4: 00000000003506e0
DR0: 0000000000000000 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_63d51858d7cca270+0x3d/0x7ac
 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+0x4b4/0xb70 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:lockdep_enabled kernel/locking/lockdep.c:91 [inline]
RIP: 0010:lock_acquire+0x113/0x400 kernel/locking/lockdep.c:5599
Code: 3d 25 12 2d 0c 00 0f 84 0a 01 00 00 65 8b 05 94 67 a5 7e 85 c0 0f 85 43 01 00 00 65 4c 8b 35 04 5e a5 7e 49 81 c6 ec 0a 00 00 <4c> 89 f0 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 08 02 00 00 41 83
RSP: 0018:ffffc90002107a40 EFLAGS: 00000282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 9625b1204eb9c600
RDX: 0000000000000000 RSI: ffffffff8a79fde0 RDI: ffffffff8a79fda0
RBP: ffffc90002107b58 R08: ffffffff8d89f02f R09: 1ffffffff1b13e05
R10: dffffc0000000000 R11: fffffbfff1b13e06 R12: ffffc90000e0c020
R13: 1ffff92000420f54 R14: ffff888026dc0aec R15: dffffc0000000000
 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
 _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:364 [inline]
 futex_wake+0x219/0x540 kernel/futex/core.c:1682
 do_futex+0xd73/0x12b0 kernel/futex/core.c:3988
 __do_sys_futex kernel/futex/core.c:4060 [inline]
 __se_sys_futex+0x389/0x420 kernel/futex/core.c:4041
 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: 0033:0x7fc26417add9
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:00007fc2623b30e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007fc2643f4098 RCX: 00007fc26417add9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc2643f409c
RBP: 00007fc2643f4090 R08: 00034ae065780322 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc2643f4128 R14: 00007ffec3ba8eb0 R15: 00007ffec3ba8f98
 </TASK>
----------------
Code disassembly (best guess):
   0:	3d 25 12 2d 0c       	cmp    $0xc2d1225,%eax
   5:	00 0f                	add    %cl,(%rdi)
   7:	84 0a                	test   %cl,(%rdx)
   9:	01 00                	add    %eax,(%rax)
   b:	00 65 8b             	add    %ah,-0x75(%rbp)
   e:	05 94 67 a5 7e       	add    $0x7ea56794,%eax
  13:	85 c0                	test   %eax,%eax
  15:	0f 85 43 01 00 00    	jne    0x15e
  1b:	65 4c 8b 35 04 5e a5 	mov    %gs:0x7ea55e04(%rip),%r14        # 0x7ea55e27
  22:	7e
  23:	49 81 c6 ec 0a 00 00 	add    $0xaec,%r14
* 2a:	4c 89 f0             	mov    %r14,%rax <-- trapping instruction
  2d:	48 c1 e8 03          	shr    $0x3,%rax
  31:	42 0f b6 04 38       	movzbl (%rax,%r15,1),%eax
  36:	84 c0                	test   %al,%al
  38:	0f 85 08 02 00 00    	jne    0x246
  3e:	41                   	rex.B
  3f:	83                   	.byte 0x83