hsr_slave_0: left promiscuous mode
hsr_slave_1: left promiscuous mode
veth0_macvtap: left allmulticast mode
veth0_macvtap: left promiscuous mode
vlan0: left promiscuous mode
veth1_macvtap: left promiscuous mode
veth1_vlan: left promiscuous mode
veth0_vlan: left promiscuous mode
veth1_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: 0 UID: 0 PID: 6158 Comm: kworker/u8:21 Not tainted syzkaller #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: c9 45 bb f7 c6 05 48 f8 88 05 01 48 c7 c7 00 a1 9e 8c be 97 05 00 00 48 c7 c2 80 a1 9e 8c e8 1a 20 99 f7 4c 89 e3 48 c1 eb 03 <42> 80 3c 2b 00 74 08 4c 89 e7 e8 e4 ae 1e f8 4d 8b 2c 24 4d 39 f5
RSP: 0018:ffffc90004bd73d8 EFLAGS: 00010206
RAX: ffffffff8a046535 RBX: 000000001fffe1ac RCX: ffff888025975a00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff888023e4cc20 R08: ffffffff8f5381a7 R09: 1ffffffff1ea7034
R10: dffffc0000000000 R11: fffffbfff1ea7035 R12: 00000000ffff0d60
R13: dffffc0000000000 R14: ffff888077e76c00 R15: 1ffff110047c9984
FS:  0000000000000000(0000) GS:ffff888125c1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056190a8dffd8 CR3: 000000000df36000 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:12136
 unregister_netdevice_many net/core/dev.c:12229 [inline]
 default_device_exit_batch+0x819/0x890 net/core/dev.c:12733
 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+0xae1/0x17b0 kernel/workqueue.c:3319
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
 kthread+0x70e/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x3f9/0x770 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: c9 45 bb f7 c6 05 48 f8 88 05 01 48 c7 c7 00 a1 9e 8c be 97 05 00 00 48 c7 c2 80 a1 9e 8c e8 1a 20 99 f7 4c 89 e3 48 c1 eb 03 <42> 80 3c 2b 00 74 08 4c 89 e7 e8 e4 ae 1e f8 4d 8b 2c 24 4d 39 f5
RSP: 0018:ffffc90004bd73d8 EFLAGS: 00010206
RAX: ffffffff8a046535 RBX: 000000001fffe1ac RCX: ffff888025975a00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff888023e4cc20 R08: ffffffff8f5381a7 R09: 1ffffffff1ea7034
R10: dffffc0000000000 R11: fffffbfff1ea7035 R12: 00000000ffff0d60
R13: dffffc0000000000 R14: ffff888077e76c00 R15: 1ffff110047c9984
FS:  0000000000000000(0000) GS:ffff888125c1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056190a8dffd8 CR3: 000000000df36000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	c9                   	leave
   1:	45 bb f7 c6 05 48    	rex.RB mov $0x4805c6f7,%r11d
   7:	f8                   	clc
   8:	88 05 01 48 c7 c7    	mov    %al,-0x3838b7ff(%rip)        # 0xc7c7480f
   e:	00 a1 9e 8c be 97    	add    %ah,-0x68417362(%rcx)
  14:	05 00 00 48 c7       	add    $0xc7480000,%eax
  19:	c2 80 a1             	ret    $0xa180
  1c:	9e                   	sahf
  1d:	8c e8                	mov    %gs,%eax
  1f:	1a 20                	sbb    (%rax),%ah
  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 e4 ae 1e f8       	call   0xf81eaf1d
  39:	4d 8b 2c 24          	mov    (%r12),%r13
  3d:	4d 39 f5             	cmp    %r14,%r13