------------[ cut here ]------------
WARNING: CPU: 0 PID: 4395 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 0 PID: 4395 Comm: syz.2.28 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
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:ffffc90000007d40 EFLAGS: 00010006
RAX: ffffffff819ed900 RBX: 0000000000000000 RCX: ffff88801e579dc0
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed10037bb202
R10: ffffed10037bb202 R11: 1ffff110037bb201 R12: ffff88801e57b548
R13: dffffc0000000000 R14: ffffc90000007da8 R15: 000000000028e000
FS:  00005555559c6500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555559c64a8 CR3: 000000006390d000 CR4: 00000000003506f0
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_user kernel/trace/bpf_trace.c:166 [inline]
 bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163
 bpf_prog_03803683653d9c0b+0x5b/0xed8
 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_run2+0x15b/0x2d0 kernel/trace/bpf_trace.c:1915
 trace_tlb_flush+0xe6/0x110 include/trace/events/tlb.h:38
 flush_tlb_func+0x43f/0x510 arch/x86/mm/tlb.c:855
 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:unwind_next_frame+0x71e/0x1d90 arch/x86/kernel/unwind_orc.c:471
Code: 38 74 0c 4c 89 f7 e8 91 b4 87 00 48 8b 14 24 49 8b 3e 4c 8d 7a 01 48 89 d0 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 22 13 00 00 <4c> 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0 48 8b 6c 24 18 4c 8b 74
RSP: 0018:ffffc900033df408 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc900033df4c8 RCX: ffffffff8ddbf070
RDX: ffffffff8e799f6c RSI: ffffffff8e799f30 RDI: ffffc900033dff58
RBP: ffffffff89c00b51 R08: 000000000000001d R09: 0000000000000007
R10: fffff5200067bea5 R11: 1ffff9200067bea3 R12: 1ffffffff1cf33ee
R13: dffffc0000000000 R14: ffffc900033df500 R15: ffffffff8e799f6d
 arch_stack_walk+0x10c/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x98/0xe0 kernel/stacktrace.c:122
 save_stack+0xf3/0x1e0 mm/page_owner.c:119
 __set_page_owner+0x41/0x2d0 mm/page_owner.c:181
 prep_new_page mm/page_alloc.c:2426 [inline]
 get_page_from_freelist+0x1b77/0x1c60 mm/page_alloc.c:4192
 __alloc_pages+0x1e1/0x470 mm/page_alloc.c:5487
 alloc_pages_vma+0x393/0x7c0 mm/mempolicy.c:2146
 wp_page_copy+0x235/0x1fd0 mm/memory.c:3056
 handle_pte_fault mm/memory.c:4668 [inline]
 __handle_mm_fault mm/memory.c:4785 [inline]
 handle_mm_fault+0x1ec7/0x43b0 mm/memory.c:4883
 do_user_addr_fault+0x489/0xc80 arch/x86/mm/fault.c:1357
 handle_page_fault arch/x86/mm/fault.c:1445 [inline]
 exc_page_fault+0x60/0x100 arch/x86/mm/fault.c:1501
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:606
RIP: 0033:0x7efd2e24375b
Code: 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 a8 ff ff ff f7 d8 <64> 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 41
RSP: 002b:00007fff43df0c78 EFLAGS: 00010213
RAX: 000000000000006e RBX: 000000000000f55f RCX: ffffffffffffffa8
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007efd2e49a09c
RBP: 0000000000000032 R08: 00303cc1128a8900 R09: 0000000c43df0f6f
R10: 00007fff43df0d70 R11: 0000000000000246 R12: 00007efd2e49a09c
R13: 00007fff43df0d70 R14: 000000000000f591 R15: 00007fff43df0d90
 </TASK>
----------------
Code disassembly (best guess):
   0:	38 74 0c 4c          	cmp    %dh,0x4c(%rsp,%rcx,1)
   4:	89 f7                	mov    %esi,%edi
   6:	e8 91 b4 87 00       	call   0x87b49c
   b:	48 8b 14 24          	mov    (%rsp),%rdx
   f:	49 8b 3e             	mov    (%r14),%rdi
  12:	4c 8d 7a 01          	lea    0x1(%rdx),%r15
  16:	48 89 d0             	mov    %rdx,%rax
  19:	48 c1 e8 03          	shr    $0x3,%rax
  1d:	42 0f b6 04 28       	movzbl (%rax,%r13,1),%eax
  22:	84 c0                	test   %al,%al
  24:	0f 85 22 13 00 00    	jne    0x134c
* 2a:	4c 89 f8             	mov    %r15,%rax <-- trapping instruction
  2d:	48 c1 e8 03          	shr    $0x3,%rax
  31:	42 0f b6 04 28       	movzbl (%rax,%r13,1),%eax
  36:	84 c0                	test   %al,%al
  38:	48 8b 6c 24 18       	mov    0x18(%rsp),%rbp
  3d:	4c                   	rex.WR
  3e:	8b                   	.byte 0x8b
  3f:	74                   	.byte 0x74