general protection fault, probably for non-canonical address 0xe9f0d40000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: maybe wild-memory-access in range [0x4f86c00000000008-0x4f86c0000000000f]
CPU: 0 PID: 24037 Comm: kworker/u4:2 Not tainted 5.16.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
RIP: 0010:__skb_unlink include/linux/skbuff.h:2138 [inline]
RIP: 0010:__skb_dequeue include/linux/skbuff.h:2154 [inline]
RIP: 0010:__skb_queue_purge include/linux/skbuff.h:2870 [inline]
RIP: 0010:gro_cells_destroy net/core/gro_cells.c:103 [inline]
RIP: 0010:gro_cells_destroy+0x19a/0x360 net/core/gro_cells.c:92
Code: e8 03 80 3c 28 00 0f 85 4a 01 00 00 48 8d 7a 08 49 8b 47 08 49 c7 07 00 00 00 00 48 89 f9 49 c7 47 08 00 00 00 00 48 c1 e9 03 <80> 3c 29 00 0f 85 04 01 00 00 48 89 c1 48 89 42 08 48 c1 e9 03 80
RSP: 0018:ffffc9000332f9f0 EFLAGS: 00010202
RAX: ffd48ed8ffff8880 RBX: ffffe8ffffd48e40 RCX: 09f0d80000000001
RDX: 4f86c00000000000 RSI: ffffffff8743ba44 RDI: 4f86c00000000008
RBP: dffffc0000000000 R08: 0000000000000008 R09: 0000000000000001
R10: ffffffff872a9804 R11: 0000000000000000 R12: fffff91ffffa91ca
R13: 0000000000000001 R14: ffff88804f86cd58 R15: ffffe8ffffd48ecc
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f527000 CR3: 000000004f26b000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 ip6_dev_free+0x15/0x60 net/ipv6/ip6_tunnel.c:248
 netdev_run_todo+0x6b4/0xa80 net/core/dev.c:9951
 ip6_tnl_exit_batch_net+0x5fa/0x890 net/ipv6/ip6_tunnel.c:2312
 ops_exit_list+0x10d/0x160 net/core/net_namespace.c:171
 cleanup_net+0x4ea/0xb00 net/core/net_namespace.c:595
 process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
 worker_thread+0x658/0x11f0 kernel/workqueue.c:2445
 kthread+0x405/0x4f0 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Modules linked in:
---[ end trace 8547ea31980dfd2e ]---
RIP: 0010:__skb_unlink include/linux/skbuff.h:2138 [inline]
RIP: 0010:__skb_dequeue include/linux/skbuff.h:2154 [inline]
RIP: 0010:__skb_queue_purge include/linux/skbuff.h:2870 [inline]
RIP: 0010:gro_cells_destroy net/core/gro_cells.c:103 [inline]
RIP: 0010:gro_cells_destroy+0x19a/0x360 net/core/gro_cells.c:92
Code: e8 03 80 3c 28 00 0f 85 4a 01 00 00 48 8d 7a 08 49 8b 47 08 49 c7 07 00 00 00 00 48 89 f9 49 c7 47 08 00 00 00 00 48 c1 e9 03 <80> 3c 29 00 0f 85 04 01 00 00 48 89 c1 48 89 42 08 48 c1 e9 03 80
RSP: 0018:ffffc9000332f9f0 EFLAGS: 00010202
RAX: ffd48ed8ffff8880 RBX: ffffe8ffffd48e40 RCX: 09f0d80000000001
RDX: 4f86c00000000000 RSI: ffffffff8743ba44 RDI: 4f86c00000000008
RBP: dffffc0000000000 R08: 0000000000000008 R09: 0000000000000001
R10: ffffffff872a9804 R11: 0000000000000000 R12: fffff91ffffa91ca
R13: 0000000000000001 R14: ffff88804f86cd58 R15: ffffe8ffffd48ecc
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00e22f000 CR3: 000000007f51f000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
----------------
Code disassembly (best guess):
   0:	e8 03 80 3c 28       	callq  0x283c8008
   5:	00 0f                	add    %cl,(%rdi)
   7:	85 4a 01             	test   %ecx,0x1(%rdx)
   a:	00 00                	add    %al,(%rax)
   c:	48 8d 7a 08          	lea    0x8(%rdx),%rdi
  10:	49 8b 47 08          	mov    0x8(%r15),%rax
  14:	49 c7 07 00 00 00 00 	movq   $0x0,(%r15)
  1b:	48 89 f9             	mov    %rdi,%rcx
  1e:	49 c7 47 08 00 00 00 	movq   $0x0,0x8(%r15)
  25:	00
  26:	48 c1 e9 03          	shr    $0x3,%rcx
* 2a:	80 3c 29 00          	cmpb   $0x0,(%rcx,%rbp,1) <-- trapping instruction
  2e:	0f 85 04 01 00 00    	jne    0x138
  34:	48 89 c1             	mov    %rax,%rcx
  37:	48 89 42 08          	mov    %rax,0x8(%rdx)
  3b:	48 c1 e9 03          	shr    $0x3,%rcx
  3f:	80                   	.byte 0x80