------------[ cut here ]------------
WARNING: CPU: 0 PID: 5892 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 0 PID: 5892 Comm: syz.4.592 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 7d 94 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 91 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:ffffc90000007d38 EFLAGS: 00010006
RAX: ffffffff81a07ea0 RBX: 0000000000000008 RCX: ffff888020a11dc0
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888020a11dc7 R09: 1ffff110041423b8
R10: dffffc0000000000 R11: ffffed10041423b9 R12: ffff888020a13548
R13: 00007ffffffff000 R14: ffffc90000007da8 R15: 0000000000000000
FS:  00007f24ae3fc6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffc44a0000 CR3: 000000004dc27000 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_compat kernel/trace/bpf_trace.c:281 [inline]
 bpf_probe_read_compat+0xdd/0x170 kernel/trace/bpf_trace.c:277
 bpf_prog_4d571c0aa826a670+0x5b/0x2fc
 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+0x163/0x2e0 kernel/trace/bpf_trace.c:1915
 trace_tlb_flush+0xe6/0x110 include/trace/events/tlb.h:38
 flush_tlb_func+0x4c7/0x5b0 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:native_set_pte arch/x86/include/asm/pgtable_64.h:67 [inline]
RIP: 0010:set_pte_at arch/x86/include/asm/pgtable.h:1009 [inline]
RIP: 0010:do_set_pte+0x3fb/0x530 mm/memory.c:4071
Code: c1 e8 03 80 3c 28 00 74 08 4c 89 e7 e8 7e ea 0f 00 49 8b 1c 24 4c 89 6c 24 18 4c 8b 74 24 18 48 89 d8 48 c1 e8 03 80 3c 28 00 <74> 08 48 89 df e8 db ea 0f 00 4c 89 33 48 83 c4 20 5b 41 5c 41 5d
RSP: 0000:ffffc9000339fae8 EFLAGS: 00000246
RAX: 1ffff11009b86d31 RBX: ffff88804dc36988 RCX: 82a6bbf9ba428800
RDX: 0000000000000003 RSI: ffffffff8a2b2ea0 RDI: ffffffff8a79ec00
RBP: dffffc0000000000 R08: ffffffff8d8967af R09: 1ffffffff1b12cf5
R10: dffffc0000000000 R11: fffffbfff1b12cf6 R12: ffffc9000339fdd0
R13: 000000007cfdc025 R14: 000000007cfdc025 R15: ffff888025b18e00
 filemap_map_pages+0xea1/0x13b0 mm/filemap.c:3344
 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+0x25bc/0x4410 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: 0033:0x7f24b013cbc0
Code: Unable to access opcode bytes at RIP 0x7f24b013cb96.
RSP: 002b:00007f24ae3fc118 EFLAGS: 00010246
RAX: fffffffffffffec8 RBX: 00007f24ae3fc6c0 RCX: 00007f24b01a1ac9
RDX: 00007f24ae3fcd78 RSI: 0000000000000058 RDI: 00007f24ae3fc6c0
RBP: 0000000000000000 R08: 00007f24ae3fc6c0 R09: 00007ffe1d491487
R10: 0000000000000008 R11: 0000000000000202 R12: ffffffffffffffe8
R13: 000000000000000b R14: 00007ffe1d4913a0 R15: 00007ffe1d491488
 </TASK>
----------------
Code disassembly (best guess):
   0:	c1 e8 03             	shr    $0x3,%eax
   3:	80 3c 28 00          	cmpb   $0x0,(%rax,%rbp,1)
   7:	74 08                	je     0x11
   9:	4c 89 e7             	mov    %r12,%rdi
   c:	e8 7e ea 0f 00       	call   0xfea8f
  11:	49 8b 1c 24          	mov    (%r12),%rbx
  15:	4c 89 6c 24 18       	mov    %r13,0x18(%rsp)
  1a:	4c 8b 74 24 18       	mov    0x18(%rsp),%r14
  1f:	48 89 d8             	mov    %rbx,%rax
  22:	48 c1 e8 03          	shr    $0x3,%rax
  26:	80 3c 28 00          	cmpb   $0x0,(%rax,%rbp,1)
* 2a:	74 08                	je     0x34 <-- trapping instruction
  2c:	48 89 df             	mov    %rbx,%rdi
  2f:	e8 db ea 0f 00       	call   0xfeb0f
  34:	4c 89 33             	mov    %r14,(%rbx)
  37:	48 83 c4 20          	add    $0x20,%rsp
  3b:	5b                   	pop    %rbx
  3c:	41 5c                	pop    %r12
  3e:	41 5d                	pop    %r13