MBP 2018 – Kernel Panics x86 CPU CATERR detected

[meme1255]

Hello,
my 2018 MBP T2 TB keeps crashing recently, at least once daily last week. I've tried anything I know including Apple HW test, nothing helped.

The KP log states:
panic(cpu 1 caller 0xfffffff01944fa68): x86 CPU CATERR detected

Any idea what to do? I have an external display via USB-C dock attached.

Thank you very much in advance.

panic(cpu 1 caller 0xfffffff01944fa68): x86 CPU CATERR detected
Debugger message: panic
Memory ID: 0xff
OS release type: User
OS version: 20P4252
macOS version: 22E261
Kernel version: Darwin Kernel Version 22.4.0: Mon Mar  6 19:59:22 PST 2023; root:xnu-8796.101.5~1/RELEASE_ARM64_T8010
KernelCache UUID: CED28ACE5130367D402E135444FBB735
Kernel UUID: F1917FD8-2F88-39FB-8CCA-40A668D190BA
Boot session UUID: 0519EC7F-04B6-405C-90D9-E0DF310F94B1
iBoot version: iBoot-8422.100.650
secure boot?: YES
roots installed: 0
x86 EFI Boot State: 0x16
x86 System State: 0x0
x86 Power State: 0x0
x86 Shutdown Cause: 0x5
x86 Previous Power Transitions: 0x405060400
PCIeUp link state: 0x89271614
macOS kernel slide: 0x1a600000
Paniclog version: 14
Kernel slide:      0x000000001311c000
Kernel text base:  0xfffffff01a120000
mach_absolute_time: 0x4cd64bd9d9e
Epoch Time:        sec       usec
  Boot    : 0x6430fea0 0x000dfaa8
  Sleep   : 0x643103fe 0x000410a7
  Wake    : 0x64310403 0x000990ee
  Calendar: 0x64345a1d 0x00048bd6

Zone info:
  Zone map: 0xffffffdc3e188000 - 0xffffffe23e188000
  . VM    : 0xffffffdc3e188000 - 0xffffffdd247ec000
  . RO    : 0xffffffdd247ec000 - 0xffffffdd714b8000
  . GEN0  : 0xffffffdd714b8000 - 0xffffffde57b1c000
  . GEN1  : 0xffffffde57b1c000 - 0xffffffdf3e180000
  . GEN2  : 0xffffffdf3e180000 - 0xffffffe0247e8000
  . GEN3  : 0xffffffe0247e8000 - 0xffffffe10ae50000
  . DATA  : 0xffffffe10ae50000 - 0xffffffe23e188000
  Metadata: 0xffffffdc246a4000 - 0xffffffdc25ea4000
  Bitmaps : 0xffffffdc25ea4000 - 0xffffffdc25fc8000
  Extra   : 0 - 0

TPIDRx_ELy = {1: 0xffffffe02430f270  0: 0x0000000000000001  0ro: 0x0000000000000000 }
CORE 0: PC=0xfffffff01a4334c8, LR=0xfffffff01a33fe74, FP=0xffffffdc322c7ef0
CORE 1 is the one that panicked. Check the full backtrace for details.
Compressor Info: 0% of compressed pages limit (OK) and 0% of segments limit (OK) with 0 swapfiles and OK swap space
Panicked task 0xffffffde57ae92e0: 0 pages, 224 threads: pid 0: kernel_task
Panicked thread: 0xffffffe02430f270, backtrace: 0xffffffdc323c3700, tid: 326
          lr: 0xfffffff01a31184c  fp: 0xffffffdc323c3770
          lr: 0xfffffff01a431cfc  fp: 0xffffffdc323c37e0
          lr: 0xfffffff01a430cbc  fp: 0xffffffdc323c38c0
          lr: 0xfffffff01a2d55fc  fp: 0xffffffdc323c38d0
          lr: 0xfffffff01a311288  fp: 0xffffffdc323c3c80
          lr: 0xfffffff01a95f634  fp: 0xffffffdc323c3ca0
          lr: 0xfffffff01944fa68  fp: 0xffffffdc323c3cd0
          lr: 0xfffffff019437604  fp: 0xffffffdc323c3d30
          lr: 0xfffffff019440aec  fp: 0xffffffdc323c3d80
          lr: 0xfffffff019439b5c  fp: 0xffffffdc323c3e20
          lr: 0xfffffff019436b94  fp: 0xffffffdc323c3e90
          lr: 0xfffffff01924cb40  fp: 0xffffffdc323c3ec0
          lr: 0xfffffff01a8b05bc  fp: 0xffffffdc323c3ef0
          lr: 0xfffffff01a8afeac  fp: 0xffffffdc323c3f20
          lr: 0xfffffff01a2e06c0  fp: 0x0000000000000000