------------[ cut here ]------------
WARNING: CPU: 1 PID: 21 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 1 PID: 21 Comm: kworker/1:0 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
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 ed f7 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 70 f4 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:ffffc90000dd0c10 EFLAGS: 00010006
RAX: ffffffff819ecfb0 RBX: 0000000000000000 RCX: ffff88813fe79dc0
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed1027fcf3b9
R10: ffffed1027fcf3b9 R11: 1ffff11027fcf3b8 R12: ffff88813fe7b548
R13: 00007ffffffff000 R14: ffffc90000dd0c88 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe95be7c2f8 CR3: 000000000be8e000 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_f3c4d654356a1293+0x34/0xc18
 bpf_dispatcher_nop_func include/linux/bpf.h:790 [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_run2+0x15b/0x2d0 kernel/trace/bpf_trace.c:1915
 __traceiter_tlb_flush+0x69/0xb0 include/trace/events/tlb.h:38
 trace_tlb_flush+0xe6/0x110 include/trace/events/tlb.h:38
 switch_mm_irqs_off+0x6e3/0x9a0 arch/x86/mm/tlb.c:-1
 flush_tlb_func+0x1bc/0x510 arch/x86/mm/tlb.c:773
 flush_smp_call_function_queue+0x2a9/0x760 kernel/smp.c:628
 __sysvec_call_function_single+0x98/0x240 arch/x86/kernel/smp.c:248
 instr_sysvec_call_function_single arch/x86/kernel/smp.c:243 [inline]
 sysvec_call_function_single+0x98/0xc0 arch/x86/kernel/smp.c:243
 </IRQ>
 <TASK>
 asm_sysvec_call_function_single+0x16/0x20 arch/x86/include/asm/idtentry.h:684
RIP: 0010:preempt_count_add+0x3e/0x190 kernel/sched/core.c:5493
Code: 0b 96 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 eb 00 00 00 83 3d a2 70 ba 14 00 75 07 65 8b 05 01 01 b1 7e 65 01 3d fa 00 b1 7e <48> c7 c0 60 df 0b 96 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 e6 00
RSP: 0018:ffffc90000db7aa0 EFLAGS: 00000282
RAX: 0000000080000000 RBX: 0000000000002af9 RCX: ffffffff960bdf03
RDX: 0000000000000035 RSI: ffffffff8a599320 RDI: 0000000000000001
RBP: 0000000000000001 R08: dffffc0000000000 R09: fffff520001b6f25
R10: fffff520001b6f25 R11: 1ffff920001b6f24 R12: dffffc0000000000
R13: ffffffff96128780 R14: 000000356cff220c R15: dffffc0000000000
 delay_tsc+0x61/0xc0 arch/x86/lib/delay.c:79
 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:	0b 96 48 c1 e8 03    	or     0x3e8c148(%rsi),%edx
   6:	42 0f b6 04 38       	movzbl (%rax,%r15,1),%eax
   b:	84 c0                	test   %al,%al
   d:	0f 85 eb 00 00 00    	jne    0xfe
  13:	83 3d a2 70 ba 14 00 	cmpl   $0x0,0x14ba70a2(%rip)        # 0x14ba70bc
  1a:	75 07                	jne    0x23
  1c:	65 8b 05 01 01 b1 7e 	mov    %gs:0x7eb10101(%rip),%eax        # 0x7eb10124
  23:	65 01 3d fa 00 b1 7e 	add    %edi,%gs:0x7eb100fa(%rip)        # 0x7eb10124
* 2a:	48 c7 c0 60 df 0b 96 	mov    $0xffffffff960bdf60,%rax <-- trapping instruction
  31:	48 c1 e8 03          	shr    $0x3,%rax
  35:	42 0f b6 04 38       	movzbl (%rax,%r15,1),%eax
  3a:	84 c0                	test   %al,%al
  3c:	0f                   	.byte 0xf
  3d:	85 e6                	test   %esp,%esi