Airport Utility causes Kernel Panic (High Sierra 10.13.2)

Whenever I start the Airport Utility, the window of the Airport Utility quickly shows up and then the Apple iMac is creating a kernel panic. The diagnostic file shows:

Anonymous UUID: CADE35B0-EB0B-DE2B-D414-548AEF7D97BB

Wed Jan 10 21:36:01 2018

*** Panic Report ***

panic(cpu 3 caller 0xffffff800336f2e9): Kernel trap at 0xffffff7f8493dd40, type 14=page fault, registers:

CR0: 0x000000008001003b, CR2: 0x0000000000000370, CR3: 0x00000000071b0000, CR4: 0x00000000000626e0

RAX: 0xec748fc0e9a00069, RBX: 0x00000000e00002d7, RCX: 0x0000000000000202, RDX: 0x000000007fffffff

RSP: 0xffffff9130123800, RBP: 0xffffff9130123830, RSI: 0x0000000000000000, RDI: 0x0000000000000000

R8: 0xffffff9130123710, R9: 0x0000000000000008, R10: 0x0000000000000010, R11: 0x0000000000000000

R12: 0xffffff80d4544000, R13: 0xffffff80162389a0, R14: 0xffffff810728a000, R15: 0x0000000000000330

RFL: 0x0000000000010246, RIP: 0xffffff7f8493dd40, CS: 0x0000000000000008, **: 0x0000000000000010

Fault CR2: 0x0000000000000370, Error code: 0x0000000000000000, Fault CPU: 0x3, PL: 0, VF: 1

Backtrace (CPU 3), Frame : Return Address

0xffffff91301232b0 : 0xffffff80032505f6

0xffffff9130123300 : 0xffffff800337d604

0xffffff9130123340 : 0xffffff800336f0f9

0xffffff91301233c0 : 0xffffff8003202120

0xffffff91301233e0 : 0xffffff800325002c

0xffffff9130123510 : 0xffffff800324fdac

0xffffff9130123570 : 0xffffff800336f2e9

0xffffff91301236f0 : 0xffffff8003202120

0xffffff9130123710 : 0xffffff7f8493dd40

0xffffff9130123830 : 0xffffff7f83e1bf90

0xffffff9130123870 : 0xffffff8003892c25

0xffffff91301238d0 : 0xffffff7f83e1c070

0xffffff91301238f0 : 0xffffff7f83e1b458

0xffffff9130123960 : 0xffffff7f83e1b681

0xffffff91301239a0 : 0xffffff7f8488d507

0xffffff9130123a50 : 0xffffff7f848893c2

0xffffff9130123ab0 : 0xffffff7f84984529

0xffffff9130123b30 : 0xffffff7f84983512

0xffffff9130123c50 : 0xffffff7f849669b3

0xffffff9130123cb0 : 0xffffff7f849667ca

0xffffff9130123d20 : 0xffffff7f849c3ed3

0xffffff9130123d70 : 0xffffff7f8493166f

0xffffff9130123e40 : 0xffffff7f849304bf

0xffffff9130123e60 : 0xffffff7f84991c3c

0xffffff9130123ea0 : 0xffffff7f8493d3c6

0xffffff9130123ed0 : 0xffffff8003891395

0xffffff9130123f30 : 0xffffff800388fba2

0xffffff9130123f70 : 0xffffff800388f1dc

0xffffff9130123fa0 : 0xffffff80032014f7

Kernel Extensions in backtrace:

com.apple.iokit.IONetworkingFamily(3.4)[17D64D9A-AE76-391D-8C42-6DBC6686333B]@0 xffffff7f83e08000->0xffffff7f83e37fff

com.apple.iokit.IO80211Family(1200.12.2)[2B5D1593-AF1D-3DA5-9B8E-A27B8AAE3BAD]@ 0xffffff7f84830000->0xffffff7f84923fff

dependency: com.apple.driver.corecapture(1.0.4)[F0C23182-01CA-3C3D-BA00-A39C4BED75AE]@0xfff fff7f847fe000

dependency: com.apple.driver.AppleMobileFileIntegrity(1.0.5)[58669FC2-CC90-3594-AD69-DB89B9 23FD20]@0xffffff7f841fb000

dependency: com.apple.kec.corecrypto(1.0)[72366D6A-230C-3A33-B2AE-FE567E2FE8F4]@0xffffff7f8 4146000

dependency: com.apple.iokit.IONetworkingFamily(3.4)[17D64D9A-AE76-391D-8C42-6DBC6686333B]@0 xffffff7f83e08000

com.apple.driver.AirPort.Atheros40(700.74.5)[5F74ABC0-B5C3-3B41-A463-A8346AD64B 8D]@0xffffff7f8492f000->0xffffff7f84a76fff

dependency: com.apple.iokit.IOPCIFamily(2.9)[C08F7FC1-78A4-3A1B-BFE2-C07080CF2048]@0xffffff 7f83a94000

dependency: com.apple.iokit.IO80211Family(1200.12.2)[2B5D1593-AF1D-3DA5-9B8E-A27B8AAE3BAD]@ 0xffffff7f84830000

dependency: com.apple.iokit.IONetworkingFamily(3.4)[17D64D9A-AE76-391D-8C42-6DBC6686333B]@0 xffffff7f83e08000

BSD process name corresponding to current thread: kernel_task

Mac OS version:

17C205

Kernel version:

Darwin Kernel Version 17.3.0: Thu Nov 9 18:09:22 PST 2017; root:xnu-4570.31.3~1/RELEASE_X86_64

Kernel UUID: 87641697-A3DD-30C4-B010-E65ECE57550B

Kernel slide: 0x0000000002e00000

Kernel text base: 0xffffff8003000000

__HIB text base: 0xffffff8002f00000

System model name: iMac12,1 (Mac-942B5BF58194151B)

System uptime in nanoseconds: 602969400274

last loaded kext at 17513961908: com.apple.filesystems.msdosfs 1.10 (addr 0xffffff7f86907000, size 69632)

last unloaded kext at 500329953506: com.apple.driver.usb.AppleUSBUHCI 1.2 (addr 0xffffff7f84524000, size 135168)

loaded kexts:

com.avast.FileShield 4.0.0

com.avast.PacketForwarder 2.1

com.apple.filesystems.msdosfs 1.10

com.apple.driver.AppleBluetoothMultitouch 92

com.apple.driver.AudioAUUC 1.70

com.apple.driver.AppleHWSensor 1.9.5d0

com.apple.driver.AGPM 110.23.24

com.apple.filesystems.autofs 3.0

com.apple.driver.AppleMikeyHIDDriver 131

com.apple.driver.AppleMikeyDriver 280.12

com.apple.AGDCPluginDisplayMetrics 3.16.2

com.apple.driver.AppleHV 1

com.apple.driver.AppleUpstreamUserClient 3.6.4

com.apple.iokit.IOUserEthernet 1.0.1

com.apple.kext.AMDLegacyFramebuffer 1.6.0

com.apple.driver.AppleHDA 280.12

com.apple.iokit.IOBluetoothSerialManager 6.0.2f2

com.apple.driver.pmtelemetry 1

com.apple.kext.AMDRadeonX3000 1.6.0

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.eficheck 1

com.apple.driver.AppleThunderboltIP 3.1.1

com.apple.kext.AMD6000Controller 1.6.0

com.apple.driver.AppleLPC 3.1

com.apple.driver.AppleBacklight 170.10.2

com.apple.driver.AppleSMCPDRC 1.0.0

com.apple.driver.AppleIntelHD3000Graphics 10.0.4

com.apple.driver.AppleSMCLMU 211

com.apple.driver.AppleOSXWatchdog 1

com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0

com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0

com.apple.driver.AppleMCCSControl 1.5.3

com.apple.driver.AppleIntelSNBGraphicsFB 10.0.4

com.apple.driver.AppleIRController 352

com.apple.driver.AppleUSBCardReader 439.30.4

com.apple.filesystems.apfs 748.31.8

com.apple.filesystems.hfs.kext 407.30.1

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.BootCache 40

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0

com.apple.iokit.SCSITaskUserClient 404.30.2

com.apple.iokit.AppleBCM5701Ethernet 10.3.1

com.apple.driver.AppleFWOHCI 5.5.8

com.apple.driver.AirPort.Atheros40 700.74.5

com.apple.driver.AppleAHCIPort 329

com.apple.driver.AppleRTC 2.0

com.apple.driver.AppleACPIButtons 6.1

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleSMBIOS 2.1

com.apple.driver.AppleACPIEC 6.1

com.apple.driver.AppleAPIC 1.7

com.apple.driver.AppleIntelCPUPowerManagementClient 220.0.0

com.apple.nke.applicationfirewall 183

com.apple.security.TMSafetyNet 8

com.apple.security.quarantine 3

com.apple.IOBufferCopyEngineTest 1

com.apple.driver.AppleIntelCPUPowerManagement 220.0.0

com.apple.driver.AppleBluetoothHIDKeyboard 203

com.apple.driver.AppleHIDKeyboard 203

com.apple.driver.IOBluetoothHIDDriver 6.0.2f2

com.apple.driver.AppleMultitouchDriver 1204.13

com.apple.driver.AppleInputDeviceSupport 1201.8

com.apple.kext.triggers 1.0

com.apple.driver.AppleSSE 1.0

com.apple.driver.DspFuncLib 280.12

com.apple.kext.OSvKernDSPLib 526

com.apple.iokit.IOSerialFamily 11

com.apple.iokit.IOAcceleratorFamily2 376.6

com.apple.iokit.IOSurface 209.2.2

com.apple.AppleGPUWrangler 3.16.2

com.apple.AppleGraphicsDeviceControl 3.16.21

com.apple.driver.AppleBacklightExpert 1.1.0

com.apple.driver.AppleSMBusPCI 1.0.14d1

com.apple.kext.AMDLegacySupport 1.6.0

com.apple.driver.AppleThunderboltEDMSink 4.1.2

com.apple.driver.AppleHDAController 280.12

com.apple.iokit.IOHDAFamily 280.12

com.apple.iokit.IOAudioFamily 206.5

com.apple.vecLib.kext 1.2.0

com.apple.iokit.IOFireWireIP 2.2.8

com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0

com.apple.driver.IOPlatformPluginLegacy 1.0.0

com.apple.driver.IOPlatformPluginFamily 6.0.0d8

com.apple.driver.AppleSMBusController 1.0.18d1

com.apple.iokit.IONDRVSupport 517.22

com.apple.iokit.IOGraphicsFamily 517.22

com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 6.0.2f2

com.apple.iokit.IOBluetoothHostControllerUSBTransport 6.0.2f2

com.apple.iokit.IOBluetoothHostControllerTransport 6.0.2f2

com.apple.iokit.IOBluetoothFamily 6.0.2f2

com.apple.driver.usb.IOUSBHostHIDDevice 1.2

com.apple.driver.usb.networking 5.0.0

com.apple.driver.usb.AppleUSBHostCompositeDevice 1.2

com.apple.filesystems.hfs.encodings.kext 1

com.apple.driver.usb.AppleUSBHub 1.2

com.apple.iokit.IOSCSIMultimediaCommandsDevice 404.30.2

com.apple.iokit.IOBDStorageFamily 1.8

com.apple.iokit.IODVDStorageFamily 1.8

com.apple.iokit.IOCDStorageFamily 1.8

com.apple.driver.AppleThunderboltDPOutAdapter 5.0.2

com.apple.driver.AppleThunderboltDPInAdapter 5.0.2

com.apple.driver.AppleThunderboltDPAdapterFamily 5.0.2

com.apple.driver.AppleThunderboltPCIDownAdapter 2.1.3

com.apple.iokit.IOAHCISerialATAPI 267

com.apple.iokit.IOAHCIBlockStorage 301.20.1

com.apple.driver.AppleThunderboltNHI 4.5.6

com.apple.iokit.IOThunderboltFamily 6.6.3

com.apple.iokit.IOEthernetAVBController 1.1.0

com.apple.driver.mDNSOffloadUserClient 1.0.1b8

com.apple.iokit.IOFireWireFamily 4.6.8

com.apple.iokit.IO80211Family 1200.12.2

com.apple.driver.corecapture 1.0.4

com.apple.driver.usb.AppleUSBHostPacketFilter 1.0

com.apple.iokit.IOAHCIFamily 288

com.apple.driver.usb.AppleUSBEHCIPCI 1.2

com.apple.driver.usb.AppleUSBEHCI 1.2

com.apple.iokit.IOUSBFamily 900.4.1

com.apple.driver.AppleUSBHostMergeProperties 1.2

com.apple.driver.AppleEFINVRAM 2.1

com.apple.driver.AppleEFIRuntime 2.1

com.apple.iokit.IOHIDFamily 2.0.0

com.apple.iokit.IOSMBusFamily 1.1

com.apple.security.sandbox 300.0

com.apple.kext.AppleMatch 1.0.0d1

com.apple.iokit.IOBufferCopyEngineFamily 1

com.apple.driver.DiskImages 480.30.2

com.apple.driver.AppleFDEKeyStore 28.30

com.apple.driver.AppleEffaceableStorage 1.0

com.apple.driver.AppleKeyStore 2

com.apple.driver.AppleUSBTDM 439.30.4

com.apple.driver.AppleMobileFileIntegrity 1.0.5

com.apple.iokit.IOUSBMassStorageDriver 140.30.1

com.apple.iokit.IOSCSIBlockCommandsDevice 404.30.2

com.apple.iokit.IOSCSIArchitectureModelFamily 404.30.2

com.apple.iokit.IOStorageFamily 2.1

com.apple.driver.AppleCredentialManager 1.0

com.apple.driver.KernelRelayHost 1

com.apple.iokit.IOUSBHostFamily 1.2

com.apple.driver.usb.AppleUSBCommon 1.0

com.apple.driver.AppleBusPowerController 1.0

com.apple.driver.AppleSEPManager 1.0.1

com.apple.driver.IOSlaveProcessor 1

com.apple.iokit.IOReportFamily 31

com.apple.iokit.IOTimeSyncFamily 650.5

com.apple.iokit.IONetworkingFamily 3.4

com.apple.driver.AppleACPIPlatform 6.1

com.apple.driver.AppleSMCRTC 1.0

com.apple.driver.AppleSMC 3.1.9

com.apple.iokit.IOPCIFamily 2.9

com.apple.iokit.IOACPIFamily 1.4

com.apple.kec.pthread 1

com.apple.kec.Libm 1

com.apple.kec.corecrypto 1.0

EOF

Model: iMac12,1, BootROM IM121.004D.B00, 4 processors, Intel Core i5, 2.7 GHz, 8 GB, SMC 1.71f22

Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In

Graphics: AMD Radeon HD 6770M, AMD Radeon HD 6770M, PCIe, 512 MB

Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333531533642465238432D48392020

Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333531533642465238432D48392020

AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x9A), Atheros 9380: 4.0.74.0-P2P

Bluetooth: Version 6.0.2f2, 3 services, 27 devices, 1 incoming serial ports

Network Service: Wi-Fi, AirPort, en1

Serial ATA Device: ST31000528AS, 1 TB

Serial ATA Device: APPLE SSD TS256C, 251 GB

Serial ATA Device: HL-DT-STDVDRW GA32N

USB Device: USB 2.0 Bus

USB Device: FaceTime HD Camera (Built-in)

USB Device: Hub

USB Device: IBM BlueZ ZTIC

USB Device: BRCM2046 Hub

USB Device: Bluetooth USB Host Controller

USB Device: USB 2.0 Bus

USB Device: Hub

USB Device: IR Receiver

USB Device: Internal Memory Card Reader

Thunderbolt Bus: iMac, Apple Inc., 25.1

What can I do?

Thanks for any help.