pixel6_prepare_kernel_cred.c

int * prepare_kernel_cred(long param_1)

{
  char cVar1;
  bool bVar2;
  int iVar3;
  int *__dest;
  int *__src;
  int *piVar4;
  
  __dest = (int *)kmem_cache_alloc(DAT_ffffff80092dfec8,0x14000c0);
  if (__dest == (int *)0x0) {
    return (int *)0x0;
  }
  if (param_1 == 0) {
    __src = &DAT_ffffff80091d53f0;
    Hint_Prefetch(0xffffff80091d53f0,2,0,1);
    do {
      cVar1 = '\x01';
      bVar2 = (bool)ExclusiveMonitorPass(0xffffff80091d53f0,0x10);
      if (bVar2) {
        cVar1 = ExclusiveMonitorsStatus();
        DAT_ffffff80091d53f0 = DAT_ffffff80091d53f0 + 1;
      }
    } while (cVar1 != '\0');
  }
  else {
    __src = (int *)get_task_cred(param_1);
  }
  memcpy(__dest,__src,0xa8);
  piVar4 = *(int **)(__dest + 0x20);
  *__dest = 1;
  Hint_Prefetch(piVar4,2,0,1);
  do {
    cVar1 = '\x01';
    bVar2 = (bool)ExclusiveMonitorPass(piVar4,0x10);
    if (bVar2) {
      *piVar4 = *piVar4 + 1;
      cVar1 = ExclusiveMonitorsStatus();
    }
  } while (cVar1 != '\0');
  piVar4 = *(int **)(__dest + 0x24);
  Hint_Prefetch(piVar4,2,0,1);
  do {
    cVar1 = '\x01';
    bVar2 = (bool)ExclusiveMonitorPass(piVar4,0x10);
    if (bVar2) {
      *piVar4 = *piVar4 + 1;
      cVar1 = ExclusiveMonitorsStatus();
    }
  } while (cVar1 != '\0');
  *(undefined *)(__dest + 0x14) = 1;
  *(undefined8 *)(__dest + 0x16) = 0;
  *(undefined8 *)(__dest + 0x18) = 0;
  *(undefined8 *)(__dest + 0x1a) = 0;
  *(undefined8 *)(__dest + 0x1c) = 0;
  *(undefined8 *)(__dest + 0x1e) = 0;
  iVar3 = security_prepare_creds(__dest,__src,0x14000c0);
  if (iVar3 < 0) {
    Hint_Prefetch(__dest,2,0,1);
    do {
      iVar3 = *__dest;
      cVar1 = '\x01';
      bVar2 = (bool)ExclusiveMonitorPass(__dest,0x10);
      if (bVar2) {
        *__dest = iVar3 + -1;
        cVar1 = ExclusiveMonitorsStatus();
      }
    } while (cVar1 != '\0');
    DataMemoryBarrier(2,3);
    if (iVar3 + -1 == 0) {
      __put_cred(__dest);
    }
    Hint_Prefetch(__src,2,0,1);
    do {
      iVar3 = *__src;
      cVar1 = '\x01';
      bVar2 = (bool)ExclusiveMonitorPass(__src,0x10);
      if (bVar2) {
        *__src = iVar3 + -1;
        cVar1 = ExclusiveMonitorsStatus();
      }
    } while (cVar1 != '\0');
    DataMemoryBarrier(2,3);
    if (iVar3 + -1 != 0) {
      return (int *)0x0;
    }
    __dest = (int *)0x0;
  }
  else {
    Hint_Prefetch(__src,2,0,1);
    do {
      iVar3 = *__src;
      cVar1 = '\x01';
      bVar2 = (bool)ExclusiveMonitorPass(__src,0x10);
      if (bVar2) {
        *__src = iVar3 + -1;
        cVar1 = ExclusiveMonitorsStatus();
      }
    } while (cVar1 != '\0');
    DataMemoryBarrier(2,3);
    if (iVar3 + -1 != 0) {
      return __dest;
    }
  }
  __put_cred(__src);
  return __dest;
}