------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in ./kernel/bpf/devmap.c:385:28
index 16 is out of range for type 'struct xdp_frame *[16]'
CPU: 1 UID: 0 PID: 10673 Comm: syz.0.1705 Not tainted 6.11.0-rc1-syzkaller-00004-gdc1c8034e31b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:93 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
 ubsan_epilogue lib/ubsan.c:231 [inline]
 __ubsan_handle_out_of_bounds+0x121/0x150 lib/ubsan.c:429
 bq_xmit_all+0x157/0x11d0 kernel/bpf/devmap.c:385
 __dev_flush+0x81/0x160 kernel/bpf/devmap.c:425
 xdp_do_check_flushed+0x129/0x240 net/core/filter.c:4307
 __napi_poll+0xe4/0x490 net/core/dev.c:6774
 napi_poll net/core/dev.c:6840 [inline]
 net_rx_action+0x89b/0x1240 net/core/dev.c:6962
 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
 common_interrupt+0xaa/0xd0 arch/x86/kernel/irq.c:278
 </IRQ>
 <TASK>
 asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 ce ba 40 f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 83 04 ac f5 65 8b 05 04 fc 4c 74 85 c0 74 43 48 c7 04 24 0e 36
RSP: 0018:ffffc90015967200 EFLAGS: 00000206
RAX: b27f79bfcea7f500 RBX: 1ffff92002b2ce44 RCX: ffffffff81701d7a
RDX: dffffc0000000000 RSI: ffffffff8bead520 RDI: 0000000000000001
RBP: ffffc90015967290 R08: ffffffff934eb85f R09: 1ffffffff269d70b
R10: dffffc0000000000 R11: fffffbfff269d70c R12: dffffc0000000000
R13: 1ffff92002b2ce40 R14: ffffc90015967220 R15: 0000000000000246
 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
 unlock_page_lruvec_irqrestore include/linux/memcontrol.h:1524 [inline]
 folio_batch_move_lru+0x42b/0x4e0 mm/swap.c:221
 lru_add_drain_cpu+0x10e/0x8c0 mm/swap.c:661
 lru_add_drain+0x123/0x3e0 mm/swap.c:775
 free_pages_and_swap_cache+0xc4/0x690 mm/swap_state.c:320
 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
 tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:366 [inline]
 tlb_flush_mmu+0x3a3/0x680 mm/mmu_gather.c:373
 tlb_finish_mmu+0xd4/0x200 mm/mmu_gather.c:465
 exit_mmap+0x44f/0xc80 mm/mmap.c:3425
 __mmput+0x115/0x380 kernel/fork.c:1345
 exit_mm+0x220/0x310 kernel/exit.c:571
 do_exit+0x9b2/0x27f0 kernel/exit.c:869
 do_group_exit+0x207/0x2c0 kernel/exit.c:1031
 get_signal+0x1695/0x1730 kernel/signal.c:2917
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff010577299
Code: Unable to access opcode bytes at 0x7ff01057726f.
RSP: 002b:00007ff0114070f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007ff010705f88 RCX: 00007ff010577299
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007ff010705f88
RBP: 00007ff010705f80 R08: 00007ff0114076c0 R09: 00007ff0114076c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff010705f8c
R13: 000000000000000b R14: 00007ffd6dd71080 R15: 00007ffd6dd71168
 </TASK>
---[ end trace ]---
----------------
Code disassembly (best guess):
   0:	9c                   	pushf
   1:	8f 44 24 20          	pop    0x20(%rsp)
   5:	42 80 3c 23 00       	cmpb   $0x0,(%rbx,%r12,1)
   a:	74 08                	je     0x14
   c:	4c 89 f7             	mov    %r14,%rdi
   f:	e8 ce ba 40 f6       	call   0xf640bae2
  14:	f6 44 24 21 02       	testb  $0x2,0x21(%rsp)
  19:	75 52                	jne    0x6d
  1b:	41 f7 c7 00 02 00 00 	test   $0x200,%r15d
  22:	74 01                	je     0x25
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
* 2a:	e8 83 04 ac f5       	call   0xf5ac04b2 <-- trapping instruction
  2f:	65 8b 05 04 fc 4c 74 	mov    %gs:0x744cfc04(%rip),%eax        # 0x744cfc3a
  36:	85 c0                	test   %eax,%eax
  38:	74 43                	je     0x7d
  3a:	48                   	rex.W
  3b:	c7                   	.byte 0xc7
  3c:	04 24                	add    $0x24,%al
  3e:	0e                   	(bad)
  3f:	36                   	ss