panic(cpu 1 caller 0xffffff7f9f828265): "sfree on invalid allocation at 0xffffff804c737eb0"@/BuildRoot/Library/Caches/com.apple.xbs/Sources/Sandbox_executables/Sandbox-1217.61.1/src/kext/smalloc.c:248
Backtrace (CPU 1), Frame : Return Address
0xffffff813959ba50 : 0xffffff801eb3bb1b 
0xffffff813959baa0 : 0xffffff801ec733e5 
0xffffff813959bae0 : 0xffffff801ec64e5e 
0xffffff813959bb30 : 0xffffff801eae2a40 
0xffffff813959bb50 : 0xffffff801eb3b207 
0xffffff813959bc50 : 0xffffff801eb3b5eb 
0xffffff813959bca0 : 0xffffff801f2d24f9 
0xffffff813959bd10 : 0xffffff7f9f828265 
0xffffff813959bd30 : 0xffffff7f9f814159 
0xffffff813959bd50 : 0xffffff7f9f82f921 
0xffffff813959bd70 : 0xffffff7f9f81f4c4 
0xffffff813959bdb0 : 0xffffff7f9f81f2fb 
0xffffff813959bdd0 : 0xffffff801f2b6dc2 
0xffffff813959bdf0 : 0xffffff801f053a4d 
0xffffff813959be10 : 0xffffff801f0801be 
0xffffff813959be60 : 0xffffff801f081a0c 
0xffffff813959bf40 : 0xffffff801f19acba 
0xffffff813959bfa0 : 0xffffff801eae3206 
      Kernel Extensions in backtrace:
         com.apple.kext.AppleMatch(1.0d1)[318675DA-B035-3425-B868-DAADB9D7C7F2]@0xffffff7f9f813000->0xffffff7f9f817fff
         com.apple.security.sandbox(300.0)[2EBA3644-52EF-3EDD-B250-51603CA24A8C]@0xffffff7f9f818000->0xffffff7f9f871fff
            dependency: com.apple.driver.AppleMobileFileIntegrity(1.0.5)[2FAEE793-59BC-3ADF-A5E2-3BC8760AFE0B]@0xffffff7f9f7f0000
            dependency: com.apple.kext.AppleMatch(1.0.0d1)[318675DA-B035-3425-B868-DAADB9D7C7F2]@0xffffff7f9f813000
            dependency: com.apple.iokit.IOStorageFamily(2.1)[D6C7A1D3-1E90-37A3-9D36-F6793A476858]@0xffffff7f9f465000

BSD process name corresponding to current thread: launchd

Mac OS version:
19C57

Kernel version:
Darwin Kernel Version 19.2.0: Sat Nov  9 03:47:04 PST 2019; root:xnu-6153.61.1~20/RELEASE_X86_64
Kernel UUID: C3E7E405-C692-356B-88D3-C30041FD1E72
Kernel slide:     0x000000001e800000
Kernel text base: 0xffffff801ea00000
__HIB  text base: 0xffffff801e900000
System model name: iMac19,1 (Mac-AA95B1DDAB278B95)
System shutdown begun: NO
Panic diags file available: YES (0x0)

System uptime in nanoseconds: 46189943297391
last loaded kext at 45057735514206: >!UAudio	320.49 (addr 0xffffff7fa3d53000, size 434176)
last unloaded kext at 45117889117416: >usb.cdc	5.0.0 (addr 0xffffff7fa3d4c000, size 28672)
loaded kexts:
com.getdropbox.dropbox.kext	1.10.3
com.symantec.ips.kext	9.0.1
com.symantec.nfm.kext	9.0.0
com.symantec.internetSecurity.kext	9.0.2
com.symantec.SymXIPS	9.0.1
>!ATopCaseHIDEventDriver	3420.1
>AudioAUUC	1.70
@fileutil	20.036.15
@filesystems.autofs	3.0
>!AHDA	283.15
>!APlatformEnabler	2.7.0d0
>AGPM	111.4.1
>X86PlatformShim	1.0.0
>!AUpstreamUserClient	3.6.8
@kext.AMDFramebuffer	3.0.4
@kext.AMDRadeonX4000	3.0.4
@kext.AMDRadeonServiceManager	3.0.4
>!AGraphicsDevicePolicy	4.5.21
@AGDCPluginDisplayMetrics	4.5.21
>!A!IKBLGraphics	14.0.3
>!AHV	1
|IOUserEthernet	1.0.1
@kext.AMD9500!C	3.0.4
>!AMCCSControl	1.13
|IO!BSerialManager	7.0.2f4
>!A!ICFLGraphicsFramebuffer	14.0.3
>pmtelemetry	1
@Dont_Steal_Mac_OS_X	7.0.0
>eficheck	1
>!AGFXHDA	100.1.422
>!A!ISlowAdaptiveClocking	4.0.0
>!ASMCLMU	212
>!A!IPCHPMC	2.0.1
>!AThunderboltIP	3.1.3
>BCMWLANFirmware4364.Hashstore	1
>BCMWLANFirmware4377.Hashstore	1
>BCMWLANFirmware4355.Hashstore	1
>!AVirtIO	1.0
@filesystems.hfs.kext	522.0.9
@!AFSCompression.!AFSCompressionTypeDataless	1.0.0d1
@BootCache	40
@!AFSCompression.!AFSCompressionTypeZlib	1.0.0
>!ASDXC	1.7.7
|!ABCM5701Ethernet	10.3.5
>!ABCMWLANBusInterfacePCIe	1
@filesystems.apfs	1412.61.1
>!AAHCIPort	341.0.2
@private.KextAudit	1.0
>!AACPIButtons	6.1
>!ARTC	2.0
>!ASMBIOS	2.1
>!AACPIEC	6.1
>!AAPIC	1.7
$!AImage4	1
@nke.applicationfirewall	303
$TMSafetyNet	8
@!ASystemPolicy	2.0.0
|EndpointSecurity	1
>!AHIDKeyboard	209
>!AMultitouchDriver	3420.2
>!AInputDeviceSupport	3420.4
>!AHS!BDriver	3420.1
>IO!BHIDDriver	7.0.2f4
@kext.triggers	1.0
>DspFuncLib	283.15
@kext.OSvKernDSPLib	529
@kext.AMDRadeonX4400HWLibs	1.0
@kext.AMDRadeonX4000HWServices	3.0.4
>!AGraphicsControl	4.5.21
|IOAVB!F	800.17
>!ASSE	1.0
|IO!BHost!CUARTTransport	7.0.2f4
|IO!BHost!CTransport	7.0.2f4
|IO!B!F	7.0.2f4
|IO!BPacketLogger	7.0.2f4
|IOAccelerator!F2	438.2.8
>!AHDA!C	283.15
|IOHDA!F	283.15
>!A!ILpssUARTv1	3.0.60
>!A!ILpssUARTCommon	3.0.60
>!AOnboardSerial	1.0
@!AGPUWrangler	4.5.21
>!ASMBus!C	1.0.18d1
|IONDRVSupport	569.3
|IOSlowAdaptiveClocking!F	1.0.0
>!ASMBusPCI	1.0.14d1
>X86PlatformPlugin	1.0.0
>IOPlatformPlugin!F	6.0.0d8
@kext.AMDSupport	3.0.4
@!AGraphicsDeviceControl	4.5.21
|IOGraphics!F	569.3
@plugin.IOgPTPPlugin	800.14
>usb.networking	5.0.0
>usb.!UHostCompositeDevice	1.2
|IOAudio!F	300.2
@vecLib.kext	1.2.0
|IOSurface	269.6
@filesystems.hfs.encodings.kext	1
>!AThunderboltPCIDownAdapter	2.5.2
>!AThunderboltDPInAdapter	6.2.4
>!AThunderboltDPAdapter!F	6.2.4
>!AHPM	3.4.4
>!A!ILpssI2C!C	3.0.60
>!A!ILpssDmac	3.0.60
>!A!ILpssI2C	3.0.60
>!AThunderboltNHI	5.8.1
|IOThunderbolt!F	7.4.7
|IOEthernetAVB!C	1.1.0
>!ABCMWLANCore	1.0.0
>mDNSOffloadUserClient	1.0.1b8
>IOImageLoader	1.0.0
|IOSerial!F	11
|IO80211!FV2	1200.12.2b1
>corecapture	1.0.4
|IOSkywalk!F	1
|IOAHCIBlock!S	316.40.3
|IONVMe!F	2.1.0
|IOAHCI!F	290.0.1
>usb.!UXHCIPCI	1.2
>usb.!UXHCI	1.2
|IOUSB!F	900.4.2
>!AEFINVRAM	2.1
>!AEFIRuntime	2.1
|IOSMBus!F	1.1
|IOHID!F	2.0.0
$quarantine	4
$sandbox	300.0
@kext.!AMatch	1.0.0d1
>DiskImages	493.0.0
>!AFDEKeyStore	28.30
>!AEffaceable!S	1.0
>!AKeyStore	2
>!UTDM	489.60.3
|IOSCSIBlockCommandsDevice	422.0.2
>!ACredentialManager	1.0
>KernelRelayHost	1
>!ASEPManager	1.0.1
>IOSlaveProcessor	1
|IOUSBMass!SDriver	157.40.7
|IOSCSIArchitectureModel!F	422.0.2
|IO!S!F	2.1
|IOUSBHost!F	1.2
>!UHostMergeProperties	1.2
>usb.!UCommon	1.0
>!ABusPower!C	1.0
|CoreAnalytics!F	1
>!AMobileFileIntegrity	1.0.5
@kext.CoreTrust	1
|IOTimeSync!F	800.14
|IONetworking!F	3.4
|IOReport!F	47
>!AACPIPlatform	6.1
>!ASMC	3.1.9
>watchdog	1
|IOPCI!F	2.9
|IOACPI!F	1.4
@kec.pthread	1
@kec.corecrypto	1.0
@kec.Libm	1