r0 = socket$inet_udp(0x2, 0x2, 0x0)
setsockopt$inet_mreq(r0, 0x0, 0x23, &(0x7f0000000640)={@multicast2, @dev}, 0x8)
r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='net/igmp\x00')
pread64(r1, &(0x7f0000000280)=""/247, 0xf7, 0x0)