batman_adv: batadv0: Removing interface: batadv_slave_0
veth1_macvtap: left promiscuous mode
veth0_macvtap: left promiscuous mode
veth1_vlan: left promiscuous mode
veth0_vlan: left promiscuous mode
Oops: general protection fault, probably for non-canonical address 0xdffffc001fffc1ac: 0000 [#1] SMP KASAN PTI
KASAN: probably user-memory-access in range [0x00000000fffe0d60-0x00000000fffe0d67]
CPU: 0 UID: 0 PID: 13 Comm: kworker/u8:1 Not tainted 6.16.0-syzkaller-12084-g33caa208dba6 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Workqueue: netns cleanup_net
RIP: 0010:ip_mc_hash_remove net/ipv4/igmp.c:1431 [inline]
RIP: 0010:__ip_mc_dec_group+0x2fd/0x690 net/ipv4/igmp.c:1774
Code: e9 16 bc f7 c6 05 08 8e 89 05 01 48 c7 c7 00 90 9e 8c be 97 05 00 00 48 c7 c2 80 90 9e 8c e8 1a f1 99 f7 4c 89 e3 48 c1 eb 03 <42> 80 3c 2b 00 74 08 4c 89 e7 e8 54 81 1f f8 4d 8b 2c 24 4d 39 f5
RSP: 0018:ffffc900001273d8 EFLAGS: 00010206
RAX: ffffffff8a03948e RBX: 000000001fffc1ac RCX: ffff88801cea0000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff888054bb2020 R08: ffffffff8f5348a7 R09: 1ffffffff1ea6914
R10: dffffc0000000000 R11: fffffbfff1ea6915 R12: 00000000fffe0d60
R13: dffffc0000000000 R14: ffff88805eb34a00 R15: 1ffff1100a976404
FS:  0000000000000000(0000) GS:ffff888125c21000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000565552ad0000 CR3: 000000000df36000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 inetdev_event+0x2a7/0x15b0 net/ipv4/devinet.c:1642
 notifier_call_chain+0x1b6/0x3e0 kernel/notifier.c:85
 call_netdevice_notifiers_extack net/core/dev.c:2267 [inline]
 call_netdevice_notifiers net/core/dev.c:2281 [inline]
 netif_close_many+0x29c/0x410 net/core/dev.c:1784
 unregister_netdevice_many_notify+0x7b9/0x1ff0 net/core/dev.c:12118
 unregister_netdevice_many net/core/dev.c:12211 [inline]
 default_device_exit_batch+0x819/0x890 net/core/dev.c:12715
 ops_exit_list net/core/net_namespace.c:204 [inline]
 ops_undo_list+0x525/0x990 net/core/net_namespace.c:251
 cleanup_net+0x4c5/0x800 net/core/net_namespace.c:682
 process_one_work kernel/workqueue.c:3236 [inline]
 process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3319
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
 kthread+0x70e/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ip_mc_hash_remove net/ipv4/igmp.c:1431 [inline]
RIP: 0010:__ip_mc_dec_group+0x2fd/0x690 net/ipv4/igmp.c:1774
Code: e9 16 bc f7 c6 05 08 8e 89 05 01 48 c7 c7 00 90 9e 8c be 97 05 00 00 48 c7 c2 80 90 9e 8c e8 1a f1 99 f7 4c 89 e3 48 c1 eb 03 <42> 80 3c 2b 00 74 08 4c 89 e7 e8 54 81 1f f8 4d 8b 2c 24 4d 39 f5
RSP: 0018:ffffc900001273d8 EFLAGS: 00010206
RAX: ffffffff8a03948e RBX: 000000001fffc1ac RCX: ffff88801cea0000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff888054bb2020 R08: ffffffff8f5348a7 R09: 1ffffffff1ea6914
R10: dffffc0000000000 R11: fffffbfff1ea6915 R12: 00000000fffe0d60
R13: dffffc0000000000 R14: ffff88805eb34a00 R15: 1ffff1100a976404
FS:  0000000000000000(0000) GS:ffff888125d21000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000565552abcfb0 CR3: 000000000df36000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	e9 16 bc f7 c6       	jmp    0xc6f7bc1b
   5:	05 08 8e 89 05       	add    $0x5898e08,%eax
   a:	01 48 c7             	add    %ecx,-0x39(%rax)
   d:	c7 00 90 9e 8c be    	movl   $0xbe8c9e90,(%rax)
  13:	97                   	xchg   %eax,%edi
  14:	05 00 00 48 c7       	add    $0xc7480000,%eax
  19:	c2 80 90             	ret    $0x9080
  1c:	9e                   	sahf
  1d:	8c e8                	mov    %gs,%eax
  1f:	1a f1                	sbb    %cl,%dh
  21:	99                   	cltd
  22:	f7 4c 89 e3 48 c1 eb 	testl  $0x3ebc148,-0x1d(%rcx,%rcx,4)
  29:	03
* 2a:	42 80 3c 2b 00       	cmpb   $0x0,(%rbx,%r13,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	4c 89 e7             	mov    %r12,%rdi
  34:	e8 54 81 1f f8       	call   0xf81f818d
  39:	4d 8b 2c 24          	mov    (%r12),%r13
  3d:	4d 39 f5             	cmp    %r14,%r13