EXC_BAD_ACCESS (SIGSEGV) (possible… | Apple Developer Forums

Hi We had the following crash report from one of our customers that using our SDK:

Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0x00009970accfd190 -> 0x00000070accfd190 (possible pointer authentication failure)
Exception Codes: 0x0000000000000001, 0x00009970accfd190
VM Region Info: 0x70accfd190 is not in any region.  Bytes after previous region: 2899300753  
      REGION TYPE                 START - END      [ VSIZE] PRT&#x2F;MAX SHRMOD  REGION DETAIL
      commpage (reserved)     1000000000-7000000000 [384.0G] ---&#x2F;--- SM=NUL  ...(unallocated)
--->  
      UNUSED SPACE AT END
Termination Reason: SIGNAL 11 Segmentation fault: 11
Terminating Process: exc handler [8788]

Triggered by Thread:  5

Any suggestion on the reason why it happens? I understand that msgSend is related to zombie but from the code I don't see where it might happen and it's only single client that has this issue. How to father investigate it

crashlog.crash

EXC_BAD_ACCESS (SIGSEGV) (possible pointer authentication failure)