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RTNL: assertion failed at net/core/dev.c (9546)
WARNING: net/core/dev.c:9546 at __dev_set_promiscuity+0x530/0x710, CPU#0: syz.8.27550/28311
Modules linked in:
CPU: 0 UID: 0 PID: 28311 Comm: syz.8.27550 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+0x53c/0x710
Code: ab 32 02 e9 06 fc ff ff e8 01 4a 48 f8 e9 fc fb ff ff e8 f7 49 48 f8 48 8d 3d f0 ec a2 06 48 c7 c6 a0 32 dc 8c ba 4a 25 00 00 <67> 48 0f b9 3a e9 22 fb ff ff e8 d5 49 48 f8 48 8b 7c 24 08 48 c7
RSP: 0018:ffffc90022967820 EFLAGS: 00010287
RAX: ffffffff897d4299 RBX: ffff88802336c000 RCX: 0000000000080000
RDX: 000000000000254a RSI: ffffffff8cdc32a0 RDI: ffffffff90202f90
RBP: 0000000000000000 R08: ffffffff8fbcb767 R09: 1ffffffff1f796ec
R10: dffffc0000000000 R11: fffffbfff1f796ed R12: 00000000ffffffff
R13: 0000000000000000 R14: ffff88802336c0b0 R15: 1ffff1100466d816
FS:  00007fc7fb8e26c0(0000) GS:ffff88818de66000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3071fff8 CR3: 000000002d744000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 __dev_set_rx_mode+0x17c/0x260
 dev_mc_add+0xc8/0x120
 igmp6_group_added+0x234/0x820
 __ipv6_dev_mc_inc+0x897/0xa50
 __ipv6_sock_mc_join+0x503/0x750
 do_ipv6_setsockopt+0x22eb/0x31c0
 ipv6_setsockopt+0x59/0x170
 do_sock_setsockopt+0x17c/0x1b0
 __x64_sys_setsockopt+0x13d/0x1b0
 do_syscall_64+0x14d/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc7fa99c629
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc7fb8e2028 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007fc7fac15fa0 RCX: 00007fc7fa99c629
RDX: 0000000000000014 RSI: 0000000000000029 RDI: 0000000000000003
RBP: 00007fc7faa32b39 R08: 0000000000000120 R09: 0000000000000000
R10: 0000200000000100 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc7fac16038 R14: 00007fc7fac15fa0 R15: 00007ffc96c46e28
 </TASK>
