Oops: general protection fault, probably for non-canonical address 0xf31ffbfd1ff5a0bf: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: maybe wild-memory-access in range [0x98ffffe8ffad05f8-0x98ffffe8ffad05ff]
CPU: 3 PID: 13 Comm: kworker/u32:1 Not tainted 6.10.0-rc1-syzkaller-00267-gcc8ed4d0a848 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: netns cleanup_net
RIP: 0010:flush_gro_hash net/core/dev.c:6681 [inline]
RIP: 0010:__netif_napi_del net/core/dev.c:6697 [inline]
RIP: 0010:__netif_napi_del+0x318/0x570 net/core/dev.c:6688
Code: 1f 0f 87 b1 01 00 00 4c 39 fd 75 05 eb 3c 48 89 d3 e8 7c f6 d2 f8 be 02 00 00 00 4c 89 ff e8 4f f6 fa ff 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 0c 01 00 00 49 83 fc 07 48 8b 13 0f 87 0c 01
RSP: 0018:ffffc900003f7a10 EFLAGS: 00010a02
RAX: 131ffffd1ff5a0bf RBX: 98ffffe8ffad05fa RCX: ffffffff88b6811d
RDX: ffff888015fa0000 RSI: ffffffff88bb8901 RDI: 0000000000000005
RBP: ffffe8ffad05fa80 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000ffff88 R11: 0000000000000003 R12: 0000000000000001
R13: dffffc0000000000 R14: 0000000000000001 R15: ffffe8ffad05fa99
FS:  0000000000000000(0000) GS:ffff88802c300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f87254e1440 CR3: 000000005b246000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 gro_cells_destroy net/core/gro_cells.c:117 [inline]
 gro_cells_destroy+0x10a/0x4d0 net/core/gro_cells.c:106
 ip_tunnel_dev_free+0x19/0x60 net/ipv4/ip_tunnel.c:1100
 netdev_run_todo+0x775/0x1250 net/core/dev.c:10692
 cleanup_net+0x591/0xbf0 net/core/net_namespace.c:636
 process_one_work+0x958/0x1ad0 kernel/workqueue.c:3231
 process_scheduled_works kernel/workqueue.c:3312 [inline]
 worker_thread+0x6c8/0xf70 kernel/workqueue.c:3393
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:flush_gro_hash net/core/dev.c:6681 [inline]
RIP: 0010:__netif_napi_del net/core/dev.c:6697 [inline]
RIP: 0010:__netif_napi_del+0x318/0x570 net/core/dev.c:6688
Code: 1f 0f 87 b1 01 00 00 4c 39 fd 75 05 eb 3c 48 89 d3 e8 7c f6 d2 f8 be 02 00 00 00 4c 89 ff e8 4f f6 fa ff 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 0c 01 00 00 49 83 fc 07 48 8b 13 0f 87 0c 01
RSP: 0018:ffffc900003f7a10 EFLAGS: 00010a02
RAX: 131ffffd1ff5a0bf RBX: 98ffffe8ffad05fa RCX: ffffffff88b6811d
RDX: ffff888015fa0000 RSI: ffffffff88bb8901 RDI: 0000000000000005
RBP: ffffe8ffad05fa80 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000ffff88 R11: 0000000000000003 R12: 0000000000000001
R13: dffffc0000000000 R14: 0000000000000001 R15: ffffe8ffad05fa99
FS:  0000000000000000(0000) GS:ffff88802c200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000f748c0c4 CR3: 000000005b246000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	0f 87 b1 01 00 00    	ja     0x1b7
   6:	4c 39 fd             	cmp    %r15,%rbp
   9:	75 05                	jne    0x10
   b:	eb 3c                	jmp    0x49
   d:	48 89 d3             	mov    %rdx,%rbx
  10:	e8 7c f6 d2 f8       	call   0xf8d2f691
  15:	be 02 00 00 00       	mov    $0x2,%esi
  1a:	4c 89 ff             	mov    %r15,%rdi
  1d:	e8 4f f6 fa ff       	call   0xfffaf671
  22:	48 89 d8             	mov    %rbx,%rax
  25:	48 c1 e8 03          	shr    $0x3,%rax
* 29:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1) <-- trapping instruction
  2e:	0f 85 0c 01 00 00    	jne    0x140
  34:	49 83 fc 07          	cmp    $0x7,%r12
  38:	48 8b 13             	mov    (%rbx),%rdx
  3b:	0f                   	.byte 0xf
  3c:	87 0c 01             	xchg   %ecx,(%rcx,%rax,1)