Process: com.apple.DriverKit.AppleUserECM [328] Path: /System/Library/DriverExtensions/com.apple.DriverKit.AppleUserECM.dext/com.apple.DriverKit.AppleUserECM Identifier: com.apple.DriverKit.AppleUserECM Version: 1.0 (1) Code Type: X86-64 (Native) Parent Process: launchd [1] Responsible: com.apple.DriverKit.AppleUserECM [328] User ID: 270 Date/Time: 2021-04-20 23:15:29.544 -0400 OS Version: macOS 11.2.3 (20D91) Report Version: 12 Bridge OS Version: 5.2 (18P4347) Anonymous UUID: 28CA1872-33C9-9427-CC2B-8BEA35ABC4AF Time Awake Since Boot: 170000 seconds System Integrity Protection: enabled Crashed Thread: 1 Dispatch queue: AppleUserECM-Default Exception Type: EXC_CRASH (SIGABRT) Exception Codes: 0x0000000000000000, 0x0000000000000000 Exception Note: EXC_CORPSE_NOTIFY Application Specific Information: dyld2 mode stack buffer overflow Thread 0: 0 libsystem_kernel.dylib 0x000000010655094a __sigsuspend_nocancel + 10 1 libdispatch.dylib 0x00000001063a2dfb _dispatch_sigsuspend + 36 2 libdispatch.dylib 0x00000001063a2dd7 _dispatch_sig_thread + 55 Thread 1 Crashed:: Dispatch queue: AppleUserECM-Default 0 libsystem_kernel.dylib 0x000000010655045e __pthread_kill + 10 1 libsystem_pthread.dylib 0x0000000106684299 pthread_kill + 177 2 libsystem_c.dylib 0x00000001064e132a __abort + 139 3 libsystem_c.dylib 0x00000001064c3ba9 __stack_chk_fail + 100 4 com.apple.DriverKit.AppleUserECM 0x000000010616d3e5 AppleUserECM::handleTxPacketsAvailable() + 795 5 ??? 0x0000600000165fd8 0 + 105553117732824 Thread 2: 0 libsystem_pthread.dylib 0x000000010668ac8c start_wqthread + 0 Thread 3: 0 libsystem_pthread.dylib 0x000000010668ac8c start_wqthread + 0 Thread 1 crashed with X86 Thread State (64-bit): rax: 0x0000000000000000 rbx: 0x0000000000000317 rcx: 0x000070000dffeba8 rdx: 0x0000000000000000 rdi: 0x0000000000000317 rsi: 0x0000000000000006 rbp: 0x000070000dffebd0 rsp: 0x000070000dffeba8 r8: 0x000000000000005c r9: 0x0000000000000088 r10: 0x000070000e000000 r11: 0x0000000000000202 r12: 0x000070000dffebf0 r13: 0x0000000000000047 r14: 0x0000000000000006 r15: 0x0000000000000016 rip: 0x000000010655045e rfl: 0x0000000000000202 cr2: 0x000000010669c0b1 Logical CPU: 0 Error Code: 0x02000148 Trap Number: 133 Thread 1 instruction stream not available. Thread 1 last branch register state not available. Binary Images: 0x106166000 - 0x106171fff com.apple.DriverKit.AppleUserECM (1.0 - 1) <131E2232-32F7-371A-A54B-F1ECA5B3CCB4> /System/Library/DriverExtensions/com.apple.DriverKit.AppleUserECM.dext/com.apple.DriverKit.AppleUserECM 0x106187000 - 0x106196fff com.apple.NetworkingDriverKit (1.0 - 1) <4E2E38A3-B09F-31B7-A1C3-DFD2A41382F0> /System/DriverKit/System/Library/Frameworks/NetworkingDriverKit.framework/NetworkingDriverKit 0x1061b8000 - 0x1061e3fff com.apple.DriverKit (1.0 - ???) <19E386C0-BD53-343B-8CD9-2E5FD2FC4604> /System/DriverKit/System/Library/Frameworks/DriverKit.framework/DriverKit 0x106225000 - 0x106230fff com.apple.USBDriverKit (1.0 - 1) <8E694D9B-FB31-3EE3-849D-8DC24C079288> /System/DriverKit/System/Library/Frameworks/USBDriverKit.framework/USBDriverKit 0x106245000 - 0x106258fff libc++.dylib (904.4) <1BB622F8-54E3-37AC-B66B-435283833C38> /System/DriverKit/usr/lib/libc++.dylib 0x106277000 - 0x10627afff libSystem.dylib (1292.60.1) /System/DriverKit/usr/lib/libSystem.dylib 0x106290000 - 0x106297fff libcompiler_rt.dylib (102.2) /System/DriverKit/usr/lib/system/libcompiler_rt.dylib 0x1062b3000 - 0x106362fff libcorecrypto.dylib (1000.80.5) /System/DriverKit/usr/lib/system/libcorecrypto.dylib 0x10638d000 - 0x1063d4fff libdispatch.dylib (1271.40.12) <2FBC4534-F0C4-3685-93EB-CB0A776929DD> /System/DriverKit/usr/lib/system/libdispatch.dylib 0x106412000 - 0x106429fff libdyld.dylib (832.7.3) <424C3CE2-4478-3599-AEF5-FA4C474C741D> /System/DriverKit/usr/lib/system/libdyld.dylib 0x106448000 - 0x10644bfff libmacho.dylib (973.4) <4FDC4E71-B9D6-304F-B670-E5C2A794B579> /System/DriverKit/usr/lib/system/libmacho.dylib 0x106461000 - 0x106464fff libsystem_blocks.dylib (78) /System/DriverKit/usr/lib/system/libsystem_blocks.dylib 0x106473000 - 0x1064fafff libsystem_c.dylib (1439.40.11) /System/DriverKit/usr/lib/system/libsystem_c.dylib 0x10652e000 - 0x106561fff libsystem_kernel.dylib (7195.81.3) <4839DA1F-D2DA-33D3-92B5-8C239DD79B70> /System/DriverKit/usr/lib/system/libsystem_kernel.dylib 0x10658d000 - 0x1065e0fff libsystem_m.dylib (3186.40.2) /System/DriverKit/usr/lib/system/libsystem_m.dylib 0x106600000 - 0x10662ffff libsystem_malloc.dylib (317.40.8) <70C20436-D342-340B-908C-54AE5B40C578> /System/DriverKit/usr/lib/system/libsystem_malloc.dylib 0x106656000 - 0x106661fff libsystem_platform.dylib (254.80.2) <9FA58DF3-3DA4-32A8-AC34-FA400929C6D6> /System/DriverKit/usr/lib/system/libsystem_platform.dylib 0x10667f000 - 0x10668efff libsystem_pthread.dylib (454.80.2) <8CE1BD09-18AD-3C06-97EA-3AAD7077051D> /System/DriverKit/usr/lib/system/libsystem_pthread.dylib 0x1066ad000 - 0x1066b4fff libsystem_trace.dylib (1277.80.2) <82BDAAFA-0F64-33A7-A0B1-9016D482B8BB> /System/DriverKit/usr/lib/system/libsystem_trace.dylib 0x1066c8000 - 0x1066e3fff libc++abi.dylib (904.4) <3E87766A-2C1F-3105-98B4-3AE7A17BC3C5> /System/DriverKit/usr/lib/libc++abi.dylib 0x108668000 - 0x108703fff dyld (832.7.3) <0D4EA85F-7E30-338B-9215-314A5A5539B6> /usr/lib/dyld External Modification Summary: Calls made by other processes targeting this process: task_for_pid: 303 thread_create: 0 thread_set_state: 0 Calls made by this process: task_for_pid: 0 thread_create: 0 thread_set_state: 0 Calls made by all processes on this machine: task_for_pid: 195258 thread_create: 0 thread_set_state: 0 VM Region Summary: ReadOnly portion of Libraries: Total=5148K resident=0K(0%) swapped_out_or_unallocated=5148K(100%) Writable regions: Total=578.8M written=0K(0%) resident=0K(0%) swapped_out=0K(0%) unallocated=578.8M(100%) VIRTUAL REGION REGION TYPE SIZE COUNT (non-coalesced) =========== ======= ======= Kernel Alloc Once 8K 1 MALLOC 192.2M 31 MALLOC guard page 16K 3 MALLOC_NANO (reserved) 384.0M 1 reserved VM address space (unallocated) STACK GUARD 16K 4 Stack 2088K 5 Stack Guard 64.0M 2 VM_ALLOCATE 8K 2 __DATA 640K 23 __DATA_CONST 416K 21 __DATA_DIRTY 32K 2 __LINKEDIT 1744K 42 __TEXT 3744K 21 =========== ======= ======= TOTAL 648.7M 158 TOTAL, minus reserved VM space 264.7M 158