------------[ cut here ]------------
WARNING: CPU: 1 PID: 17473 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 1 PID: 17473 Comm: syz.0.22023 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 3d 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 c0 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: 0000:ffffc90000dd0cf8 EFLAGS: 00010006
RAX: ffffffff819ed760 RBX: 0000000000000008 RCX: ffff88805c1a8000
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed100b835001
R10: ffffed100b835001 R11: 1ffff1100b835000 R12: ffff88805c1a9788
R13: 00007ffffffff000 R14: ffffc90000dd0d68 R15: 0000000000000000
FS:  00007ff0dbd176c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 CR3: 00000000649d4000 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_1ccb8ba97563bf77+0x59/0x79c
 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
 __traceiter_tlb_flush+0x69/0xb0 include/trace/events/tlb.h:38
 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:xa_head include/linux/xarray.h:1181 [inline]
RIP: 0010:xas_start+0x294/0x770 lib/xarray.c:188
Code: 85 ed 0f 84 6b 02 00 00 e8 29 56 78 fd e9 37 04 00 00 e8 1f 56 78 fd eb 27 e8 18 56 78 fd e9 6a 01 00 00 e8 4e 8a 63 fd 89 c5 <31> ff 89 c6 e8 63 59 78 fd 85 ed 0f 84 7c 02 00 00 e8 f6 55 78 fd
RSP: 0000:ffffc9000314fa90 EFLAGS: 00000282
RAX: 0000000000000001 RBX: ffff888016ca5082 RCX: 48c33913ec335000
RDX: 0000000000000000 RSI: ffffffff8a0b2ac0 RDI: ffffffff8a59a480
RBP: 0000000000000001 R08: ffff88805c1a8000 R09: 0000000000000002
R10: 0000000000000003 R11: 0000000000000000 R12: ffff888074f104e8
R13: ffffc9000314fc18 R14: ffffc9000314fc00 R15: 1ffff92000629f83
 xas_load lib/xarray.c:233 [inline]
 xas_find+0x154/0xab0 lib/xarray.c:1249
 first_map_page mm/filemap.c:3288 [inline]
 filemap_map_pages+0x203/0x1390 mm/filemap.c:3314
 do_fault_around mm/memory.c:4243 [inline]
 do_read_fault mm/memory.c:4258 [inline]
 do_fault mm/memory.c:4392 [inline]
 handle_pte_fault mm/memory.c:4650 [inline]
 __handle_mm_fault mm/memory.c:4785 [inline]
 handle_mm_fault+0x2580/0x43c0 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: 0033:0x7ff0dd97fd10
Code: Unable to access opcode bytes at RIP 0x7ff0dd97fce6.
RSP: 002b:00007ff0dbd17118 EFLAGS: 00010246
RAX: 00007ff0dbd176c0 RBX: 00007ff0dbd176c0 RCX: 00007ff0dda66996
RDX: 0000000000000000 RSI: 00007ff0dbd17fb0 RDI: 00007ff0ddcf6fa0
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffdce5416b7
R10: 0000000000000008 R11: 0000000000000246 R12: ffffffffffffffa8
R13: 000000000000004d R14: 00007ffdce5415d0 R15: 00007ffdce5416b8
 </TASK>
----------------
Code disassembly (best guess):
   0:	85 ed                	test   %ebp,%ebp
   2:	0f 84 6b 02 00 00    	je     0x273
   8:	e8 29 56 78 fd       	call   0xfd785636
   d:	e9 37 04 00 00       	jmp    0x449
  12:	e8 1f 56 78 fd       	call   0xfd785636
  17:	eb 27                	jmp    0x40
  19:	e8 18 56 78 fd       	call   0xfd785636
  1e:	e9 6a 01 00 00       	jmp    0x18d
  23:	e8 4e 8a 63 fd       	call   0xfd638a76
  28:	89 c5                	mov    %eax,%ebp
* 2a:	31 ff                	xor    %edi,%edi <-- trapping instruction
  2c:	89 c6                	mov    %eax,%esi
  2e:	e8 63 59 78 fd       	call   0xfd785996
  33:	85 ed                	test   %ebp,%ebp
  35:	0f 84 7c 02 00 00    	je     0x2b7
  3b:	e8 f6 55 78 fd       	call   0xfd785636