tipc: Resetting bearer <eth:gre0>
Oops: general protection fault, probably for non-canonical address 0xdffffc001fffe1ea: 0000 [#1] SMP KASAN PTI
KASAN: probably user-memory-access in range [0x00000000ffff0f50-0x00000000ffff0f57]
CPU: 0 UID: 0 PID: 17825 Comm: syz.2.3179 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:__ip_mc_dec_group+0x2fd/0x690
Code: 59 07 bb f7 c6 05 63 b9 88 05 01 48 c7 c7 e0 a2 9e 8c be 97 05 00 00 48 c7 c2 60 a3 9e 8c e8 aa e1 98 f7 4c 89 e3 48 c1 eb 03 <42> 80 3c 2b 00 74 08 4c 89 e7 e8 f4 72 1e f8 4d 8b 2c 24 4d 39 f5
RSP: 0018:ffffc9000a6d6898 EFLAGS: 00010202
RAX: ffffffff8a04a3a5 RBX: 000000001fffe1ea RCX: 0000000000080000
RDX: ffffc90003441000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffff888120171830 R08: ffffffff8f538367 R09: 1ffffffff1ea706c
R10: dffffc0000000000 R11: fffffbfff1ea706d R12: 00000000ffff0f50
R13: dffffc0000000000 R14: ffff888120170200 R15: 1ffff1102402e306
FS:  00007f90681c16c0(0000) GS:ffff8880b861a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f728eb13d58 CR3: 0000000105844000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 br_multicast_leave_snoopers+0xb6/0x1c0
 br_dev_stop+0x8a/0x180
 __dev_close_many+0x364/0x6f0
 __dev_change_flags+0x2c7/0x6d0
 netif_change_flags+0x88/0x1a0
 do_setlink+0xc55/0x41c0
 rtnl_newlink+0x149f/0x1c70
 rtnetlink_rcv_msg+0x7cf/0xb70
 netlink_rcv_skb+0x208/0x470
 netlink_unicast+0x82f/0x9e0
 netlink_sendmsg+0x805/0xb30
 __sock_sendmsg+0x21c/0x270
 ____sys_sendmsg+0x505/0x830
 ___sys_sendmsg+0x21f/0x2a0
 __x64_sys_sendmsg+0x19b/0x260
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f906738ebe9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f90681c1038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f90675b5fa0 RCX: 00007f906738ebe9
RDX: 0000000000000000 RSI: 0000200000000040 RDI: 0000000000000007
RBP: 00007f9067411e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f90675b6038 R14: 00007f90675b5fa0 R15: 00007ffcae776c98
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__ip_mc_dec_group+0x2fd/0x690
Code: 59 07 bb f7 c6 05 63 b9 88 05 01 48 c7 c7 e0 a2 9e 8c be 97 05 00 00 48 c7 c2 60 a3 9e 8c e8 aa e1 98 f7 4c 89 e3 48 c1 eb 03 <42> 80 3c 2b 00 74 08 4c 89 e7 e8 f4 72 1e f8 4d 8b 2c 24 4d 39 f5
RSP: 0018:ffffc9000a6d6898 EFLAGS: 00010202
RAX: ffffffff8a04a3a5 RBX: 000000001fffe1ea RCX: 0000000000080000
RDX: ffffc90003441000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffff888120171830 R08: ffffffff8f538367 R09: 1ffffffff1ea706c
R10: dffffc0000000000 R11: fffffbfff1ea706d R12: 00000000ffff0f50
R13: dffffc0000000000 R14: ffff888120170200 R15: 1ffff1102402e306
FS:  00007f90681c16c0(0000) GS:ffff8880b861a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055f2372157e8 CR3: 0000000105844000 CR4: 00000000000006f0
