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: 12595 Comm: kworker/u8:10 Not tainted 6.16.0-syzkaller-12091-g89886abd0734 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Workqueue: netns cleanup_net
RIP: 0010:ip6_mc_clear_src+0x18f/0x580 net/ipv6/mcast.c:2593
Code: ff ff ff e8 63 d9 41 01 89 c5 31 ff 89 c6 e8 58 ce 88 f7 85 ed 74 45 e8 0f ca 88 f7 eb 05 e8 08 ca 88 f7 4c 89 e0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 e7 e8 92 34 ec f7 49 8b 2c 24 49 8d 7c
RSP: 0018:ffffc9001a8bf0c0 EFLAGS: 00010206
RAX: 000000001fffe000 RBX: 1ffff1100aa6a702 RCX: ffff88807d439e00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffffff8fa34637 R09: 1ffffffff1f468c6
R10: dffffc0000000000 R11: fffffbfff1f468c7 R12: 00000000ffff0000
R13: dffffc0000000000 R14: 0000000000000538 R15: ffff888055353810
FS:  0000000000000000(0000) GS:ffff888125d21000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000557ac000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 mld_clear_delrec+0x160/0x660 net/ipv6/mcast.c:828
 ipv6_mc_destroy_dev+0x45/0x5a0 net/ipv6/mcast.c:2839
 addrconf_ifdown+0x139e/0x1880 net/ipv6/addrconf.c:3996
 addrconf_notify+0x1bc/0x1010 net/ipv6/addrconf.c:-1
 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]
 unregister_netdevice_many_notify+0x14d7/0x1ff0 net/core/dev.c:12148
 unregister_netdevice_many net/core/dev.c:12211 [inline]
 unregister_netdevice_queue+0x33c/0x380 net/core/dev.c:12055
 unregister_netdevice include/linux/netdevice.h:3382 [inline]
 _cfg80211_unregister_wdev+0x165/0x590 net/wireless/core.c:1275
 ieee80211_remove_interfaces+0x49a/0x6e0 net/mac80211/iface.c:2391
 ieee80211_unregister_hw+0x5d/0x2c0 net/mac80211/main.c:1664
 mac80211_hwsim_del_radio+0x275/0x460 drivers/net/wireless/virtual/mac80211_hwsim.c:5674
 hwsim_exit_net+0x584/0x640 drivers/net/wireless/virtual/mac80211_hwsim.c:6554
 ops_exit_list net/core/net_namespace.c:198 [inline]
 ops_undo_list+0x49a/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:ip6_mc_clear_src+0x18f/0x580 net/ipv6/mcast.c:2593
Code: ff ff ff e8 63 d9 41 01 89 c5 31 ff 89 c6 e8 58 ce 88 f7 85 ed 74 45 e8 0f ca 88 f7 eb 05 e8 08 ca 88 f7 4c 89 e0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 e7 e8 92 34 ec f7 49 8b 2c 24 49 8d 7c
RSP: 0018:ffffc9001a8bf0c0 EFLAGS: 00010206
RAX: 000000001fffe000 RBX: 1ffff1100aa6a702 RCX: ffff88807d439e00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffffff8fa34637 R09: 1ffffffff1f468c6
R10: dffffc0000000000 R11: fffffbfff1f468c7 R12: 00000000ffff0000
R13: dffffc0000000000 R14: 0000000000000538 R15: ffff888055353810
FS:  0000000000000000(0000) GS:ffff888125d21000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000560da000 CR4: 00000000003526f0
----------------
Code disassembly (best guess), 3 bytes skipped:
   0:	e8 63 d9 41 01       	call   0x141d968
   5:	89 c5                	mov    %eax,%ebp
   7:	31 ff                	xor    %edi,%edi
   9:	89 c6                	mov    %eax,%esi
   b:	e8 58 ce 88 f7       	call   0xf788ce68
  10:	85 ed                	test   %ebp,%ebp
  12:	74 45                	je     0x59
  14:	e8 0f ca 88 f7       	call   0xf788ca28
  19:	eb 05                	jmp    0x20
  1b:	e8 08 ca 88 f7       	call   0xf788ca28
  20:	4c 89 e0             	mov    %r12,%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 e7             	mov    %r12,%rdi
  31:	e8 92 34 ec f7       	call   0xf7ec34c8
  36:	49 8b 2c 24          	mov    (%r12),%rbp
  3a:	49                   	rex.WB
  3b:	8d                   	.byte 0x8d
  3c:	7c                   	.byte 0x7c