------------[ cut here ]------------
WARNING: CPU: 1 PID: 4323 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 1 PID: 4323 Comm: kworker/1:5 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Workqueue: rcu_gp process_srcu
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 8d f6 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 10 f3 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:ffffc90000dd08d8 EFLAGS: 00010046
RAX: ffffffff819ed900 RBX: 0000000000000008 RCX: ffff88802be90000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed10057d2001
R10: ffffed10057d2001 R11: 1ffff110057d2000 R12: ffff88802be91788
R13: 00007ffffffff000 R14: ffffc90000dd0948 R15: 0000000020000000
FS:  0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3265ffff CR3: 000000005a610000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
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/0x910
 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_trace_run kernel/trace/bpf_trace.c:1878 [inline]
 bpf_trace_run3+0x17e/0x320 kernel/trace/bpf_trace.c:1916
 trace_timer_start include/trace/events/timer.h:52 [inline]
 enqueue_timer+0x394/0x520 kernel/time/timer.c:586
 internal_add_timer kernel/time/timer.c:611 [inline]
 __mod_timer+0x8e1/0xd20 kernel/time/timer.c:1062
 hsr_announce+0x215/0x300 net/hsr/hsr_device.c:405
 call_timer_fn+0x16c/0x530 kernel/time/timer.c:1451
 expire_timers kernel/time/timer.c:1496 [inline]
 __run_timers+0x525/0x7c0 kernel/time/timer.c:1767
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1780
 handle_softirqs+0x328/0x820 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x12f/0x220 kernel/softirq.c:659
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 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:delay_tsc+0x57/0xc0 arch/x86/lib/delay.c:79
Code: 90 49 89 d7 49 c1 e7 20 49 09 c7 4d 29 f7 49 39 df 73 53 bf 01 00 00 00 e8 86 ff 50 fd 65 8b 05 17 fd 01 7c 85 c0 74 1c f3 90 <bf> 01 00 00 00 e8 df fd 50 fd e8 1a 0b a9 05 39 c5 75 0e 0f 01 f9
RSP: 0018:ffffc9000336fac0 EFLAGS: 00000286
RAX: 0000000080000000 RBX: 0000000000002af9 RCX: 0000000000000000
RDX: 0000000000000040 RSI: ffffffff8a59e560 RDI: 00000000ffffffff
RBP: 0000000000000001 R08: dffffc0000000000 R09: fffff5200066df25
R10: fffff5200066df25 R11: 1ffff9200066df24 R12: dffffc0000000000
R13: ffffffff9612f800 R14: 000000400d8eb5fa R15: 0000000000000f83
 try_check_zero+0x2c7/0x340 kernel/rcu/srcutree.c:702
 srcu_advance_state kernel/rcu/srcutree.c:1227 [inline]
 process_srcu+0x195/0xc10 kernel/rcu/srcutree.c:1325
 process_one_work+0x863/0x1000 kernel/workqueue.c:2310
 worker_thread+0xaa8/0x12a0 kernel/workqueue.c:2457
 kthread+0x436/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
----------------
Code disassembly (best guess):
   0:	90                   	nop
   1:	49 89 d7             	mov    %rdx,%r15
   4:	49 c1 e7 20          	shl    $0x20,%r15
   8:	49 09 c7             	or     %rax,%r15
   b:	4d 29 f7             	sub    %r14,%r15
   e:	49 39 df             	cmp    %rbx,%r15
  11:	73 53                	jae    0x66
  13:	bf 01 00 00 00       	mov    $0x1,%edi
  18:	e8 86 ff 50 fd       	call   0xfd50ffa3
  1d:	65 8b 05 17 fd 01 7c 	mov    %gs:0x7c01fd17(%rip),%eax        # 0x7c01fd3b
  24:	85 c0                	test   %eax,%eax
  26:	74 1c                	je     0x44
  28:	f3 90                	pause
* 2a:	bf 01 00 00 00       	mov    $0x1,%edi <-- trapping instruction
  2f:	e8 df fd 50 fd       	call   0xfd50fe13
  34:	e8 1a 0b a9 05       	call   0x5a90b53
  39:	39 c5                	cmp    %eax,%ebp
  3b:	75 0e                	jne    0x4b
  3d:	0f 01 f9             	rdtscp