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 0xdffffc001fffe000: 0000 [#1] SMP KASAN PTI
KASAN: probably user-memory-access in range [0x00000000ffff0000-0x00000000ffff0007]
CPU: 1 UID: 0 PID: 13 Comm: kworker/u8:1 Not tainted 6.16.0-rc2-syzkaller-00159-ge0fca6f2cebf #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: netns cleanup_net
RIP: 0010:mld_clear_delrec+0x34a/0x5d0 net/ipv6/mcast.c:838
Code: ff ff ff e8 c8 3c 41 01 89 c5 31 ff 89 c6 e8 ed 31 9b f7 85 ed 74 40 e8 a4 2d 9b f7 eb 05 e8 9d 2d 9b f7 4c 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 ff e8 a7 ab fe f7 4d 8b 27 49 8d 7f 30
RSP: 0018:ffffc90000127330 EFLAGS: 00010206
RAX: 000000001fffe000 RBX: ffff88805fd74538 RCX: ffff88801d2b0000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffffff8fa110f7 R09: 1ffffffff1f4221e
R10: dffffc0000000000 R11: fffffbfff1f4221f R12: ffff88805ad2d828
R13: dffffc0000000000 R14: ffff88805ad2d800 R15: 00000000ffff0000
FS:  0000000000000000(0000) GS:ffff888125d51000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd250f8a286 CR3: 000000000df38000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ipv6_mc_destroy_dev+0x45/0x5a0 net/ipv6/mcast.c:2842
 addrconf_ifdown+0x139e/0x1880 net/ipv6/addrconf.c:4000
 addrconf_notify+0x1bc/0x1010 net/ipv6/addrconf.c:-1
 notifier_call_chain+0x1b3/0x3e0 kernel/notifier.c:85
 call_netdevice_notifiers_extack net/core/dev.c:2268 [inline]
 call_netdevice_notifiers net/core/dev.c:2282 [inline]
 unregister_netdevice_many_notify+0x15d8/0x2320 net/core/dev.c:12077
 unregister_netdevice_many net/core/dev.c:12140 [inline]
 default_device_exit_batch+0x819/0x890 net/core/dev.c:12644
 ops_exit_list net/core/net_namespace.c:206 [inline]
 ops_undo_list+0x525/0x990 net/core/net_namespace.c:253
 cleanup_net+0x4c5/0x800 net/core/net_namespace.c:686
 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+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:mld_clear_delrec+0x34a/0x5d0 net/ipv6/mcast.c:838
Code: ff ff ff e8 c8 3c 41 01 89 c5 31 ff 89 c6 e8 ed 31 9b f7 85 ed 74 40 e8 a4 2d 9b f7 eb 05 e8 9d 2d 9b f7 4c 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 ff e8 a7 ab fe f7 4d 8b 27 49 8d 7f 30
RSP: 0018:ffffc90000127330 EFLAGS: 00010206
RAX: 000000001fffe000 RBX: ffff88805fd74538 RCX: ffff88801d2b0000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffffff8fa110f7 R09: 1ffffffff1f4221e
R10: dffffc0000000000 R11: fffffbfff1f4221f R12: ffff88805ad2d828
R13: dffffc0000000000 R14: ffff88805ad2d800 R15: 00000000ffff0000
FS:  0000000000000000(0000) GS:ffff888125d51000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9713ce7d60 CR3: 00000000338de000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 3 bytes skipped:
   0:	e8 c8 3c 41 01       	call   0x1413ccd
   5:	89 c5                	mov    %eax,%ebp
   7:	31 ff                	xor    %edi,%edi
   9:	89 c6                	mov    %eax,%esi
   b:	e8 ed 31 9b f7       	call   0xf79b31fd
  10:	85 ed                	test   %ebp,%ebp
  12:	74 40                	je     0x54
  14:	e8 a4 2d 9b f7       	call   0xf79b2dbd
  19:	eb 05                	jmp    0x20
  1b:	e8 9d 2d 9b f7       	call   0xf79b2dbd
  20:	4c 89 f8             	mov    %r15,%rax
  23:	48 c1 e8 03          	shr    $0x3,%rax
* 27:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1) <-- trapping instruction
  2c:	74 08                	je     0x36
  2e:	4c 89 ff             	mov    %r15,%rdi
  31:	e8 a7 ab fe f7       	call   0xf7feabdd
  36:	4d 8b 27             	mov    (%r15),%r12
  39:	49 8d 7f 30          	lea    0x30(%r15),%rdi