Kernel panic booting up iMac in OS 10.13.3

Hi,

I have a 2010 iMac11,3 that keeps showing a kernel panic when booting up since I installed MacOS 10.13.3. I can boot it up in safe mode (shift-key boot) without any problem. I've tried disk utility which found no issues, I also tried to "over-install" MacOS from a USB drive but all without success. I also ran the Onyx cleaning routine and basically unchecked all my run at logon items.

I would appreciate any pointers.

Here's the log from the crash:

Anonymous UUID: EC6C9BFF-D254-78D5-21F7-2F6653810AD7

Mon Feb 26 22:06:07 2018

*** Panic Report ***

panic(cpu 3 caller 0xffffff800bc9c67a): "Element 0xffffff8d85b5bb00 from zone vm objects caught being freed to wrong zone kalloc.4096\n"@/BuildRoot/Library/Caches/com.apple.xbs/Sources/xnu/xnu-4570.41. 2/osfmk/kern/zalloc.c:3523

Backtrace (CPU 3), Frame : Return Address

0xffffff8d85b5b5d0 : 0xffffff800bc4f606

0xffffff8d85b5b620 : 0xffffff800bd7c654

0xffffff8d85b5b660 : 0xffffff800bd6e149

0xffffff8d85b5b6e0 : 0xffffff800bc01120

0xffffff8d85b5b700 : 0xffffff800bc4f03c

0xffffff8d85b5b830 : 0xffffff800bc4edbc

0xffffff8d85b5b890 : 0xffffff800bc9c67a

0xffffff8d85b5b970 : 0xffffff800c108d2e

0xffffff8d85b5bcb0 : 0xffffff800c10d11b

0xffffff8d85b5bd30 : 0xffffff800c10be87

0xffffff8d85b5bf40 : 0xffffff800c1fa978

0xffffff8d85b5bfa0 : 0xffffff800bc01906

BSD process name corresponding to current thread: xpcproxy

Mac OS version:

17D102

Kernel version:

Darwin Kernel Version 17.4.0: Sun Dec 17 09:19:54 PST 2017; root:xnu-4570.41.2~1/RELEASE_X86_64

Kernel UUID: 18D901F1-4A03-3FF1-AE34-C26B2732F13C

Kernel slide: 0x000000000b800000

Kernel text base: 0xffffff800ba00000

__HIB text base: 0xffffff800b900000

System model name: iMac11,3 (Mac-F2238BAE)

System uptime in nanoseconds: 68921299569

last loaded kext at 2613762113: com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 6.0.2f2 (addr 0xffffff7f8d5d1000, size 49152)

loaded kexts:

com.bitdefender.SelfProtect 1.2.8

com.apple.iokit.IOBluetoothUSBDFU 6.0.2f2

com.apple.driver.AppleUSBStorageCoexistentDriver 439.30.4

com.apple.driver.AppleUSBCardReader 439.30.4

com.apple.driver.AppleIRController 352

com.apple.driver.AppleFileSystemDriver 3.0.1

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0

com.apple.BootCache 40

com.apple.filesystems.hfs.kext 407.30.1

com.apple.iokit.SCSITaskUserClient 404.30.2

com.apple.driver.AppleFWOHCI 5.5.8

com.apple.iokit.AppleBCM5701Ethernet 10.3.1

com.apple.driver.AirPort.Atheros40 700.74.5

com.apple.driver.AppleAHCIPort 329

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleACPIButtons 6.1

com.apple.driver.AppleRTC 2.0

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.quarantine 3

com.apple.security.TMSafetyNet 8

com.apple.driver.AppleIntelCPUPowerManagement 220.0.0

com.apple.IOBufferCopyEngineTest 1

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.iokit.IOUSBMassStorageClass 4.0.4

com.apple.driver.usb.IOUSBHostHIDDevice 1.2

com.apple.driver.usb.cdc 5.0.0

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.AppleXsanScheme 3

com.apple.iokit.IOAHCISerialATAPI 267

com.apple.iokit.IOAHCIBlockStorage 301.40.2

com.apple.driver.AppleUSBMergeNub 900.4.1

com.apple.iokit.IOFireWireFamily 4.6.8

com.apple.driver.usb.AppleUSBHostPacketFilter 1.0

com.apple.iokit.IOUSBFamily 900.4.1

com.apple.iokit.IOEthernetAVBController 1.1.0

com.apple.driver.mDNSOffloadUserClient 1.0.1b8

com.apple.driver.usb.AppleUSBEHCIPCI 1.2

com.apple.iokit.IO80211Family 1200.12.2

com.apple.driver.corecapture 1.0.4

com.apple.iokit.IOAHCIFamily 288

com.apple.driver.usb.AppleUSBUHCIPCI 1.2

com.apple.driver.usb.AppleUSBUHCI 1.2

com.apple.driver.usb.AppleUSBEHCI 1.2

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.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.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.IOBufferCopyEngineFamily 1

com.apple.driver.DiskImages 480.30.2

com.apple.iokit.IOStorageFamily 2.1

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.Libm 1

com.apple.kec.pthread 1

com.apple.kec.corecrypto 1.0

EOF

Model: iMac11,3, BootROM IM112.005B.B00, 4 processors, Intel Core i5, 2,8 GHz, 12 GB, SMC 1.59f2

Graphics: ATI Radeon HD 5750, ATI Radeon HD 5750, PCIe, 1 GB

Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54313235533654465238432D48392020

Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54313235533654465238432D48392020

Memory Module: BANK 0/DIMM1, 4 GB, DDR3, 1333 MHz, 0x80CE, 0x4D34373142353237334448302D4348392020

Memory Module: BANK 1/DIMM1, 4 GB, DDR3, 1333 MHz, 0x80CE, 0x4D34373142353237334448302D4348392020

AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x8F), Atheros 9280: 4.0.74.0-P2P

Bluetooth: Version 6.0.2f2, 3 services, 27 devices, 0 incoming serial ports

Network Service: Wi-Fi, AirPort, en1

Serial ATA Device: ST31000528AS, 1 TB

Serial ATA Device: OPTIARC DVD RW AD-5680H

USB Device: USB 2.0 Bus

USB Device: Hub

USB Device: UDisk

USB Device: Internal Memory Card Reader

USB Device: BRCM2046 Hub

USB Device: Bluetooth USB Host Controller

USB Device: USB 2.0 Bus

USB Device: Hub

USB Device: Ext HDD 1021

USB Device: IR Receiver

USB Device: Built-in iSight

Thunderbolt Bus: