batman_adv: batadv0: Removing interface: batadv_slave_1
veth1_macvtap: left promiscuous mode
veth0_macvtap: left promiscuous mode
veth1_vlan: left promiscuous mode
Oops: general protection fault, probably for non-canonical address 0xdffffc001fffe1ac: 0000 [#1] SMP KASAN PTI
KASAN: probably user-memory-access in range [0x00000000ffff0d60-0x00000000ffff0d67]
CPU: 1 UID: 0 PID: 1154 Comm: kworker/u8:6 Not tainted 6.16.0-syzkaller-06590-gf8fded7536a9 #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: 99 e8 c4 f7 c6 05 23 96 8f 05 01 48 c7 c7 a0 f7 9b 8c be 97 05 00 00 48 c7 c2 20 f8 9b 8c e8 ea d2 a2 f7 4c 89 e3 48 c1 eb 03 <42> 80 3c 2b 00 74 08 4c 89 e7 e8 54 0b 28 f8 4d 8b 2c 24 4d 39 f5
RSP: 0018:ffffc900041ef3d8 EFLAGS: 00010206
RAX: ffffffff89fac7de RBX: 000000001fffe1ac RCX: ffff888027171e00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff888058c40820 R08: ffffffff8f508fa7 R09: 1ffffffff1ea11f4
R10: dffffc0000000000 R11: fffffbfff1ea11f5 R12: 00000000ffff0d60
R13: dffffc0000000000 R14: ffff888028ba3a00 R15: 1ffff1100b188104
FS:  0000000000000000(0000) GS:ffff888125d80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f76e11b5e9c CR3: 000000000df38000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 inetdev_event+0x2a7/0x15b0 net/ipv4/devinet.c:1642
 notifier_call_chain+0x1b3/0x3e0 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:12126
 unregister_netdevice_many net/core/dev.c:12219 [inline]
 default_device_exit_batch+0x819/0x890 net/core/dev.c:12723
 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:3238 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402
 kthread+0x70e/0x8a0 kernel/kthread.c:464
 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: 99 e8 c4 f7 c6 05 23 96 8f 05 01 48 c7 c7 a0 f7 9b 8c be 97 05 00 00 48 c7 c2 20 f8 9b 8c e8 ea d2 a2 f7 4c 89 e3 48 c1 eb 03 <42> 80 3c 2b 00 74 08 4c 89 e7 e8 54 0b 28 f8 4d 8b 2c 24 4d 39 f5
RSP: 0018:ffffc900041ef3d8 EFLAGS: 00010206
RAX: ffffffff89fac7de RBX: 000000001fffe1ac RCX: ffff888027171e00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff888058c40820 R08: ffffffff8f508fa7 R09: 1ffffffff1ea11f4
R10: dffffc0000000000 R11: fffffbfff1ea11f5 R12: 00000000ffff0d60
R13: dffffc0000000000 R14: ffff888028ba3a00 R15: 1ffff1100b188104
FS:  0000000000000000(0000) GS:ffff888125c80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563c8c8ef138 CR3: 000000000df38000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	99                   	cltd
   1:	e8 c4 f7 c6 05       	call   0x5c6f7ca
   6:	23 96 8f 05 01 48    	and    0x4801058f(%rsi),%edx
   c:	c7 c7 a0 f7 9b 8c    	mov    $0x8c9bf7a0,%edi
  12:	be 97 05 00 00       	mov    $0x597,%esi
  17:	48 c7 c2 20 f8 9b 8c 	mov    $0xffffffff8c9bf820,%rdx
  1e:	e8 ea d2 a2 f7       	call   0xf7a2d30d
  23:	4c 89 e3             	mov    %r12,%rbx
  26:	48 c1 eb 03          	shr    $0x3,%rbx
* 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 0b 28 f8       	call   0xf8280b8d
  39:	4d 8b 2c 24          	mov    (%r12),%r13
  3d:	4d 39 f5             	cmp    %r14,%r13