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RTNL: assertion failed at net/core/dev.c (9330)
WARNING: CPU: 0 PID: 4494 at net/core/dev.c:9330 __dev_set_promiscuity+0x569/0x740
Modules linked in:
CPU: 0 UID: 0 PID: 4494 Comm: syz.4.12356 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:__dev_set_promiscuity+0x569/0x740
Code: ed fb ff ff e8 48 ef 5b f8 c6 05 32 c1 29 06 01 90 48 c7 c7 00 14 94 8c 48 c7 c6 00 13 94 8c ba 72 24 00 00 e8 28 8e 1f f8 90 <0f> 0b 90 90 e9 06 fb ff ff e8 19 ef 5b f8 48 8b 7c 24 08 48 c7 c6
RSP: 0018:ffffc900075b7680 EFLAGS: 00010246
RAX: 6b0d6a642ed5c500 RBX: ffff888044f54000 RCX: 0000000000080000
RDX: ffffc90003dd1000 RSI: 0000000000000ce4 RDI: 0000000000000ce5
RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfa1ec R12: 00000000ffffffff
R13: 0000000000000000 R14: ffff888044f540b0 R15: 1ffff110089ea816
FS:  00007f69a61b06c0(0000) GS:ffff8880b861b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055557da84808 CR3: 00000000389e2000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 __dev_set_rx_mode+0x17c/0x260
 dev_mc_add+0xc8/0x120
 igmp6_group_added+0x225/0x800
 __ipv6_dev_mc_inc+0x897/0xa50
 addrconf_join_solict+0xf8/0x170
 __ipv6_dev_ac_inc+0x87b/0xaf0
 ipv6_sock_ac_join+0x6ef/0x8c0
 do_ipv6_setsockopt+0x1e90/0x2eb0
 ipv6_setsockopt+0x59/0x170
 do_sock_setsockopt+0x17c/0x1b0
 __x64_sys_setsockopt+0x13f/0x1b0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f69a538ebe9
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:00007f69a61b0038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f69a55b5fa0 RCX: 00007f69a538ebe9
RDX: 000000000000001b RSI: 0000000000000029 RDI: 0000000000000004
RBP: 00007f69a5411e19 R08: 0000000000000014 R09: 0000000000000000
R10: 0000200000000080 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f69a55b6038 R14: 00007f69a55b5fa0 R15: 00007ffe55c8b358
 </TASK>
