Daily Kernel Panic on my MacBook Pro

My MacBook Pro kernel panics daily. I have clean-installed Mavericks yet it's not fixed. Could you tell me what is wrong from these reports?

panic(cpu 0 caller 0xffffff8006adbf5e): Kernel trap at 0xffffff8006aa4090, type 14=page fault, registers:
CR0: 0x0000000080010033, CR2: 0x0000000000000074, CR3: 0x000000006c53606a, CR4: 0x00000000000606e0
RAX: 0xffffff80070d0320, RBX: 0x0000000000000060, RCX: 0x0000000000000060, RDX: 0x000000000000006c
RSP: 0xffffff809a56bd00, RBP: 0xffffff809a56bd20, RSI: 0xffffff800cc5c440, RDI: 0xffffff80070d0920

R8:  0xffffff800ced37f8, R9:  0xffffff800ce68140, R10: 0x000000010a0b8000, R11: 0x00007fff93155c90
R12: 0x0000000000000000, R13: 0xffffff801da5e0e0, R14: 0x000000000000009f, R15: 0xffffff800ce68140
RFL: 0x0000000000010296, RIP: 0xffffff8006aa4090, CS:  0x0000000000000008, SS:  0x0000000000000000
Fault CR2: 0x0000000000000074, Error code: 0x0000000000000002, Fault CPU: 0x0

Backtrace (CPU 0), Frame : Return Address
0xffffff809a56b990 : 0xffffff8006a22fa9
0xffffff809a56ba10 : 0xffffff8006adbf5e
0xffffff809a56bbe0 : 0xffffff8006af3456
0xffffff809a56bc00 : 0xffffff8006aa4090
0xffffff809a56bd20 : 0xffffff8006aa4d35
0xffffff809a56bd50 : 0xffffff8006a78e03
0xffffff809a56bf20 : 0xffffff8006adc39c
0xffffff809a56bfb0 : 0xffffff8006af335b

BSD process name corresponding to current thread: com.apple.WebKit

Mac OS version:
13D65

Kernel version:
Darwin Kernel Version 13.2.0: Thu Apr 17 23:03:13 PDT 2014; root:xnu-2422.100.13~1/RELEASE_X86_64
Kernel UUID: ADD73AE6-88B0-32FB-A8BB-4F7C8BE4092E
Kernel slide:     0x0000000006800000
Kernel text base: 0xffffff8006a00000
System model name: MacBookPro8,2 (Mac-94245A3940C91C80)

System uptime in nanoseconds: 160319367955
last loaded kext at 57897334464: com.apple.driver.AudioAUUC    1.60 (addr 0xffffff7f88547000, size 28672)
loaded kexts:
com.kerio.kext.kvnet    8.3.0
com.apple.driver.AudioAUUC    1.60
com.apple.driver.AppleHWSensor    1.9.5d0
com.apple.iokit.IOUserEthernet    1.0.0d1
com.apple.iokit.IOBluetoothSerialManager    4.2.4f1
com.apple.driver.AppleMikeyHIDDriver    124
com.apple.driver.AppleHDAHardwareConfigDriver    2.6.1f2
com.apple.kext.AMDFramebuffer    1.2.2
com.apple.driver.AppleTyMCEDriver    1.0.2d2
com.apple.driver.AGPM    100.14.15
com.apple.driver.AppleUpstreamUserClient 3.5.13
com.apple.driver.ApplePolicyControl    3.5.26
com.apple.Dont_Steal_Mac_OS_X    7.0.0
com.apple.driver.AppleMikeyDriver    2.6.1f2
com.apple.driver.AppleHDA    2.6.1f2
com.apple.AMDRadeonX3000    1.2.2
com.apple.driver.AppleIntelHD3000Graphics    8.2.4
com.apple.driver.AppleHWAccess    1
com.apple.driver.AppleBacklight    170.3.5
com.apple.iokit.IOBluetoothUSBDFU    4.2.4f1
com.apple.driver.AppleThunderboltIP    1.1.2
com.apple.driver.AppleLPC    1.7.0
com.apple.driver.AppleSMCLMU    2.0.4d1
com.apple.kext.AMD6000Controller    1.2.2
com.apple.driver.AppleIntelSNBGraphicsFB    8.2.4
com.apple.driver.AppleIntelMCEReporter    104
com.apple.driver.AppleMCCSControl    1.1.12
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport    4.2.4f1
com.apple.driver.AppleSMCPDRC    1.0.0
com.apple.driver.AppleMuxControl    3.5.26
com.apple.driver.SMCMotionSensor    3.0.4d1
com.apple.driver.ACPI_SMC_PlatformPlugin    1.0.0
com.apple.filesystems.autofs    3.0
com.apple.driver.AppleUSBTCButtons    240.2
com.apple.driver.AppleUSBTCKeyEventDriver    240.2
com.apple.driver.AppleUSBTCKeyboard    240.2
com.apple.driver.AppleIRController    325.7
com.apple.iokit.SCSITaskUserClient    3.6.6
com.apple.driver.AppleFileSystemDriver    3.0.1
com.apple.driver.XsanFilter    404
com.apple.BootCache    35
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib    1.0.0d1
com.apple.driver.AppleUSBHub    666.4.0
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless    1.0.0d1
com.apple.iokit.IOAHCIBlockStorage    2.5.1
com.apple.driver.AppleSDXC    1.5.2
com.apple.iokit.AppleBCM5701Ethernet    3.8.1b2
com.apple.driver.AirPort.Brcm4331    700.20.22
com.apple.driver.AppleFWOHCI    5.0.2
com.apple.driver.AppleUSBEHCI    660.4.0
com.apple.driver.AppleUSBUHCI    656.4.1
com.apple.driver.AppleAHCIPort    3.0.0
com.apple.driver.AppleSmartBatteryManager    161.0.0
com.apple.driver.AppleACPIButtons    2.0
com.apple.driver.AppleRTC    2.0
com.apple.driver.AppleHPET    1.8
com.apple.driver.AppleSMBIOS    2.1
com.apple.driver.AppleACPIEC    2.0
com.apple.driver.AppleAPIC    1.7
com.apple.driver.AppleIntelCPUPowerManagementClient    217.92.1
com.apple.security.quarantine    3
com.apple.nke.applicationfirewall    153
com.apple.driver.AppleIntelCPUPowerManagement    217.92.1
com.apple.iokit.IOSurface    91.1
com.apple.iokit.IOSerialFamily    10.0.7
com.apple.iokit.IOBluetoothFamily    4.2.4f1
com.apple.driver.DspFuncLib    2.6.1f2
com.apple.vecLib.kext    1.0.0
com.apple.iokit.IOAudioFamily    1.9.7fc2
com.apple.kext.OSvKernDSPLib    1.14
com.apple.iokit.IOAcceleratorFamily    98.20
com.apple.driver.AppleHDAController    2.6.1f2
com.apple.iokit.IOHDAFamily    2.6.1f2
com.apple.kext.AMDSupport    1.2.2
com.apple.AppleGraphicsDeviceControl    3.5.26
com.apple.iokit.IOFireWireIP    2.2.6
com.apple.driver.AppleSMBusController    1.0.11d1
com.apple.iokit.IOBluetoothHostControllerUSBTransport    4.2.4f1
com.apple.driver.AppleSMBusPCI    1.0.12d1
com.apple.driver.AppleBacklightExpert    1.0.4
com.apple.iokit.IONDRVSupport    2.4.1
com.apple.driver.AppleGraphicsControl    3.5.26
com.apple.iokit.IOGraphicsFamily    2.4.1
com.apple.driver.AppleSMC    3.1.8
com.apple.driver.IOPlatformPluginLegacy    1.0.0
com.apple.driver.IOPlatformPluginFamily    5.7.0d11
com.apple.driver.AppleThunderboltEDMSink    2.1.3
com.apple.driver.AppleThunderboltDPOutAdapter    3.1.7
com.apple.kext.triggers    1.0
com.apple.driver.AppleThunderboltDPInAdapter    3.1.7
com.apple.driver.AppleThunderboltDPAdapterFamily    3.1.7
com.apple.driver.AppleThunderboltPCIDownAdapter    1.4.5
com.apple.driver.AppleUSBMultitouch    240.9
com.apple.iokit.IOUSBHIDDriver    660.4.0
com.apple.driver.AppleUSBMergeNub    650.4.0
com.apple.driver.AppleUSBComposite    656.4.1
com.apple.iokit.IOSCSIMultimediaCommandsDevice    3.6.6
com.apple.iokit.IOBDStorageFamily    1.7
com.apple.iokit.IODVDStorageFamily    1.7.1
com.apple.iokit.IOCDStorageFamily    1.7.1
com.apple.driver.AppleThunderboltNHI    2.0.1
com.apple.iokit.IOThunderboltFamily    3.2.7
com.apple.iokit.IOAHCISerialATAPI    2.6.1
com.apple.iokit.IOSCSIArchitectureModelFamily    3.6.6
com.apple.iokit.IOEthernetAVBController    1.0.3b4
com.apple.driver.mDNSOffloadUserClient    1.0.1b5
com.apple.iokit.IOUSBUserClient    660.4.2
com.apple.iokit.IO80211Family    630.35
com.apple.iokit.IONetworkingFamily    3.2
com.apple.iokit.IOFireWireFamily    4.5.5
com.apple.driver.AppleEFINVRAM    2.0
com.apple.iokit.IOUSBFamily    677.4.0
com.apple.iokit.IOAHCIFamily    2.6.5
com.apple.driver.AppleEFIRuntime    2.0
com.apple.iokit.IOHIDFamily    2.0.0
com.apple.iokit.IOSMBusFamily    1.1
com.apple.security.TMSafetyNet    7
com.apple.security.sandbox    278.11
com.apple.kext.AppleMatch    1.0.0d1
com.apple.iokit.IOReportFamily    23
com.apple.driver.DiskImages    371.1
com.apple.iokit.IOStorageFamily    1.9
com.apple.driver.AppleKeyStore    2
com.apple.driver.AppleFDEKeyStore    28.30
com.apple.driver.AppleACPIPlatform    2.0
com.apple.iokit.IOPCIFamily    2.9
com.apple.iokit.IOACPIFamily    1.4
com.apple.kec.pthread    1
com.apple.kec.corecrypto    1.0
Model: MacBookPro8,2, BootROM MBP81.0047.B27, 4 processors, Intel Core i7, 2.2 GHz, 4 GB, SMC 1.69f3
Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In, 384 MB
Graphics: AMD Radeon HD 6750M, AMD Radeon HD 6750M, PCIe, 512 MB
Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333235533642465238432D48392020
Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333235533642465238432D48392020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 (5.106.98.100.22)
Bluetooth: Version 4.2.4f1 13674, 3 services, 23 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: ST9500325ASG, 500.11 GB
Serial ATA Device: HL-DT-ST DVDRW  GS31N
USB Device: FaceTime HD Camera (Built-in)
USB Device: Hub
USB Device: BRCM2070 Hub
USB Device: Bluetooth USB Host Controller
USB Device: Apple Internal Keyboard / Trackpad
USB Device: Hub
USB Device: IR Receiver
Thunderbolt Bus: MacBook Pro, Apple Inc., 22.1