product-security@apple.com
g-net-crash exploit
Follow-up: 761852800

panic(cpu 12 caller 0xffffff8014f64a25): userspace watchdog timeout: no successful checkins from com.apple.remoted in 180 seconds
service returned not alive with context : unresponsive work processor(s): remoted heartbeat on bridge 
service: com.apple.logd, total successful checkins since load (1220 seconds ago): 123, last successful checkin: 0 seconds ago
service: com.apple.WindowServer, total successful checkins since load (1190 seconds ago): 119, last successful checkin: 0 seconds ago
service: com.apple.remoted, total successful checkins since load (1220 seconds ago): 98, last successful checkin: 180 seconds ago

Backtrace (CPU 12), Frame : Return Address
0xffffffc1c4ff3670 : 0xffffff8011cbab4d 
0xffffffc1c4ff36c0 : 0xffffff8011dfd7e3 
0xffffffc1c4ff3700 : 0xffffff8011dede1a 
0xffffffc1c4ff3750 : 0xffffff8011c5fa2f 
0xffffffc1c4ff3770 : 0xffffff8011cba3ed 
0xffffffc1c4ff3890 : 0xffffff8011cba6d8 
0xffffffc1c4ff3900 : 0xffffff80124bf004 
0xffffffc1c4ff3970 : 0xffffff8014f64a25 
0xffffffc1c4ff3980 : 0xffffff8014f64678 
0xffffffc1c4ff39a0 : 0xffffff801244628e 
0xffffffc1c4ff39f0 : 0xffffff8014f63ab4 
0xffffffc1c4ff3b20 : 0xffffff801245045b 
0xffffffc1c4ff3c80 : 0xffffff8011da8e51 
0xffffffc1c4ff3d90 : 0xffffff8011cc0147 
0xffffffc1c4ff3e00 : 0xffffff8011c96905 
0xffffffc1c4ff3e60 : 0xffffff8011cae062 
0xffffffc1c4ff3ef0 : 0xffffff8011dd1fc3 
0xffffffc1c4ff3fa0 : 0xffffff8011c60216 
      Kernel Extensions in backtrace:
         com.apple.driver.watchdog(1.0)[2C1307C5-FD71-3802-8D68-A67DB24BCB4A]@0xffffff8014f63000->0xffffff8014f64fff

Process name corresponding to current thread: watchdogd
Boot args: chunklist-security-epoch=0 -chunklist-no-rev2-dev

Mac OS version:
20D91

Kernel version:
Darwin Kernel Version 20.3.0: Thu Jan 21 00:07:06 PST 2021; root:xnu-7195.81.3~1/RELEASE_X86_64
Kernel UUID: C86236B2-4976-3542-80CA-74A6B8B4BA03
KernelCache slide: 0x0000000011a00000
KernelCache base:  0xffffff8011c00000
Kernel slide:      0x0000000011a10000
Kernel text base:  0xffffff8011c10000
__HIB  text base: 0xffffff8011b00000
System model name: MacBookPro16,4 (Mac-A61BADE1FDAD7B05)
System shutdown begun: NO
Hibernation exit count: 0

System uptime in nanoseconds: 1233588942435
Last Sleep:           absolute           base_tsc          base_nano
  Uptime  : 0x0000011f37a17e35
  Sleep   : 0x0000000000000000 0x0000000000000000 0x0000000000000000
  Wake    : 0x0000000000000000 0x00000003192c09b8 0x0000000000000000
last started kext at 665130758521: >usb.!UUserHCI	1 (addr 0xffffff7fb259f000, size 102400)
last stopped kext at 275319180079: >usb.!UHostPacketFilter	1.0 (addr 0xffffff8014a4f000, size 8192)
loaded kexts:
>usb.!UUserHCI	1
@filesystems.smbfs	3.4.1
>!ATopCaseHIDEventDriver	4030.5
>!AHIDALSService	1
>AGPM	119
>!APlatformEnabler	2.7.0d0
>X86PlatformShim	1.0.0
@fileutil	20.036.15
@filesystems.autofs	3.0
@kext.AMDRadeonX6000	4.0.2
@kext.AMDRadeonServiceManager	4.0.2
>!AGraphicsDevicePolicy	6.2.2
@filesystems.ntfs	3.14.3
@AGDCPluginDisplayMetrics	6.2.2
>!AUpstreamUserClient	3.6.8
>pmtelemetry	1
>LuaHardwareAccess	1.0.16
|IOUserEthernet	1.0.1
|IO!BSerialManager	8.0.3d9
@Dont_Steal_Mac_OS_X	7.0.0
>!AHV	1
>BridgeAudioCommunication	100.2
>!ABridgeAudio!C	100.2
>!A!IKBLGraphics	16.0.1
>AGDCBacklightControl	6.2.2
>!ADiskImages2	1
>!AThunderboltIP	4.0.3
>!AAVEBridge	6.1
>!A!ICFLGraphicsFramebuffer	16.0.1
>!AMuxControl2	6.2.2
>!A!ISlowAdaptiveClocking	4.0.0
>!A!IPCHPMC	2.0.1
>!AGFXHDA	100.1.431
>!AMCCSControl	1.14
>BCMWLANFirmware4378.Hashstore	1
>BCMWLANFirmware4377.Hashstore	1
>BCMWLANFirmware4364.Hashstore	1
>BCMWLANFirmware4355.Hashstore	1
>!ABCMWLANBusInterfacePCIeMac	1
@filesystems.tmpfs	1
@filesystems.hfs.kext	556.60.1
@BootCache	40
@!AFSCompression.!AFSCompressionTypeZlib	1.0.0
@!AFSCompression.!AFSCompressionTypeDataless	1.0.0d1
@filesystems.apfs	1677.81.1
@private.KextAudit	1.0
>!ASmartBatteryManager	161.0.0
>!AACPIButtons	6.1
>!ASMBIOS	2.1
>!AACPIEC	6.1
>!AAPIC	1.7
@!ASystemPolicy	2.0.0
@nke.applicationfirewall	310
|IOKitRegistryCompatibility	1
|EndpointSecurity	1
>!AXsanScheme	3
>!AHIDKeyboard	223
>!AHS!BDriver	4030.5
>IO!BHIDDriver	8.0.3d9
>!AActuatorDriver	4400.28
>!AMultitouchDriver	4400.28
>!AInputDeviceSupport	4400.35
@kext.triggers	1.0
@kext.AMDRadeonX6300HWLibs	1.0
@kext.AMDRadeonX6000Framebuffer	4.0.2
|IOAVB!F	930.1
@plugin.IOgPTPPlugin	900.11
|IOEthernetAVB!C	1.1.0
|IO!BHost!CUARTTransport	8.0.3d9
|IO!BHost!CTransport	8.0.3d9
>!A!ILpssUARTv1	3.0.60
>!A!ILpssUARTCommon	3.0.60
>!AOnboardSerial	1.0
>!ABacklightExpert	1.1.0
>X86PlatformPlugin	1.0.0
|IOAccelerator!F2	439.52
>!AGraphicsControl	6.2.2
@!AGPUWrangler	6.2.2
@kext.AMDSupport	4.0.2
@!AGraphicsDeviceControl	6.2.2
|IOSlowAdaptiveClocking!F	1.0.0
>IOPlatformPlugin!F	6.0.0d8
|IONDRVSupport	585
|IOAudio!F	300.6.1
@vecLib.kext	1.2.0
@kext.AMDRadeonX6000HWServices	4.0.2
|IOGraphics!F	585
>!ASMBus!C	1.0.18d1
>usb.cdc.ncm	5.0.0
>usb.cdc	5.0.0
>usb.networking	5.0.0
>usb.!UHostCompositeDevice	1.2
>!AThunderboltPCIDownAdapter	4.1.1
>!AThunderboltDPInAdapter	8.1.4
>!AThunderboltDPAdapter!F	8.1.4
>!AHPM	3.4.4
>!A!ILpssI2C!C	3.0.60
>!A!ILpssI2C	3.0.60
>!A!ILpssDmac	3.0.60
>!ABCMWLANCoreMac	1.0.0
|IOSerial!F	11
|IO80211!FV2	1200.12.2b1
>IOImageLoader	1.0.0
>corecapture	1.0.4
>!ABSDKextStarter	3
|IOSurface	289.3
|IOSkywalk!F	1
>mDNSOffloadUserClient	1.0.1b8
@filesystems.hfs.encodings.kext	1
>usb.!UVHCIBCE	1.2
>usb.!UVHCICommonBCE	1.0
>usb.!UVHCI	1.2
>usb.!UVHCICommon	1.0
>!AEffaceableNOR	1.0
|IOBufferCopy!C	1.1.0
|IOBufferCopyEngine!F	1
|IONVMe!F	2.1.0
>!AThunderboltNHI	7.2.8
|IOThunderbolt!F	9.3.2
|IOUSB!F	900.4.2
>usb.!UXHCIPCI	1.2
>usb.!UXHCI	1.2
>!AEFINVRAM	2.1
>!AEFIRuntime	2.1
>!ASMCRTC	1.0
|IOSMBus!F	1.1
|IOHID!F	2.0.0
$!AImage4	3.0.0
|IOTimeSync!F	900.11
|IONetworking!F	3.4
>DiskImages	493.0.0
|IO!B!F	8.0.3d9
|IOReport!F	47
|IO!BPacketLogger	8.0.3d9
$quarantine	4
$sandbox	300.0
@kext.!AMatch	1.0.0d1
|CoreAnalytics!F	1
>!ASSE	1.0
>!AKeyStore	2
>!UTDM	511.60.2
|IOUSBMass!SDriver	184.40.6
|IOSCSIBlockCommandsDevice	436.40.6
|IO!S!F	2.1
|IOSCSIArchitectureModel!F	436.40.6
>!AMobileFileIntegrity	1.0.5
@kext.CoreTrust	1
>!AFDEKeyStore	28.30
>!AEffaceable!S	1.0
>!ACredentialManager	1.0
>KernelRelayHost	1
|IOUSBHost!F	1.2
>!UHostMergeProperties	1.2
>usb.!UCommon	1.0
>!ABusPower!C	1.0
>!ASEPManager	1.0.1
>IOSlaveProcessor	1
>!AACPIPlatform	6.1
>!ASMC	3.1.9
|IOPCI!F	2.9
|IOACPI!F	1.4
>watchdog	1
@kec.pthread	1
@kec.corecrypto	11.1
@kec.Libm	1