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--- libmalloc/libmalloc-792.1.1/src/malloc.c
+++ libmalloc/libmalloc-715.100.22/src/malloc.c
@@ -76,8 +76,13 @@
MALLOC_XZONE_OVERRIDE_ENABLED,
} malloc_xzone_override_t;
+static malloc_xzone_override_t malloc_xzone_enabled_override;
static malloc_xzone_override_t malloc_xzone_nano_override;
static malloc_xzone_override_t malloc_nano_on_xzone_override;
+
+#if CONFIG_CHECK_PLATFORM_BINARY
+static bool malloc_xzone_allow_non_platform;
+#endif // CONFIG_CHECK_PLATFORM_BINARY
unsigned malloc_debug_flags = 0;
bool malloc_tracing_enabled = false;
@@ -123,14 +128,8 @@
static void malloc_sanitizer_fallback_deallocate_poison(uintptr_t ptr, size_t sz);
#endif
/* These masks are exported for libdispatch to register with (see "internal.h") */
-unsigned long malloc_memorypressure_mask_default_4libdispatch = MALLOC_MEMORYPRESSURE_MASK_DEFAULT;
-unsigned long malloc_memorypressure_mask_msl_4libdispatch = MALLOC_MEMORYPRESSURE_MASK_MSL;
-
-#if MALLOC_TARGET_IOS || TARGET_OS_SIMULATOR
-static unsigned long malloc_memorystatus_mask_resource_exception_handling = 0;
-#else
-static unsigned long malloc_memorystatus_mask_resource_exception_handling = MALLOC_MEMORYSTATUS_MASK_RESOURCE_EXCEPTION_HANDLING;
-#endif
+const unsigned long malloc_memorypressure_mask_default_4libdispatch = MALLOC_MEMORYPRESSURE_MASK_DEFAULT;
+const unsigned long malloc_memorypressure_mask_msl_4libdispatch = MALLOC_MEMORYPRESSURE_MASK_MSL;
MALLOC_NOEXPORT malloc_zone_t* lite_zone = NULL;
@@ -479,15 +478,11 @@
{ "ExternalQuickLookSatellite-x86_64", MALLOC_PROCESS_QUICKLOOK_MACOS },
#endif // TARGET_OS_OSX
- { "MobileSafari", MALLOC_PROCESS_BROWSER, },
- { "com.apple.WebKit.Networking", MALLOC_PROCESS_BROWSER, },
- { "com.apple.WebKit.Networking.Development", MALLOC_PROCESS_BROWSER, },
- { "com.apple.WebKit.GPU", MALLOC_PROCESS_BROWSER, },
- { "com.apple.WebKit.GPU.Development", MALLOC_PROCESS_BROWSER, },
- { "com.apple.WebKit.WebContent", MALLOC_PROCESS_BROWSER, },
- { "com.apple.WebKit.WebContent.Development", MALLOC_PROCESS_BROWSER, },
- { "com.apple.WebKit.WebContent.CaptivePortal", MALLOC_PROCESS_BROWSER, },
- { "com.apple.WebKit.WebContent.CaptivePortal.Development", MALLOC_PROCESS_BROWSER, },
+ { "MobileSafari", MALLOC_PROCESS_BROWSER, },
+ { "com.apple.WebKit.Networking", MALLOC_PROCESS_BROWSER, },
+ { "com.apple.WebKit.GPU", MALLOC_PROCESS_BROWSER, },
+ { "com.apple.WebKit.WebContent", MALLOC_PROCESS_BROWSER, },
+ { "com.apple.WebKit.WebContent.CaptivePortal", MALLOC_PROCESS_BROWSER, },
{ "MTLCompilerService", MALLOC_PROCESS_MTLCOMPILERSERVICE },
#if TARGET_OS_OSX
@@ -530,24 +525,13 @@
{ "AegirPoster", MALLOC_PROCESS_AEGIRPOSTER, },
{ "CollectionsPoster", MALLOC_PROCESS_COLLECTIONSPOSTER, },
-#if TARGET_OS_WATCH
- { "backboardd", MALLOC_PROCESS_BACKBOARDD, },
- { "ClockFace", MALLOC_PROCESS_CLOCKFACE, },
-#endif // TARGET_OS_WATCH
-
#if TARGET_OS_OSX
{ "GroupSessionService", MALLOC_PROCESS_GROUPSESSIONSERVICE, },
{ "IMTranscoderAgent", MALLOC_PROCESS_IMTRANSCODERAGENT, },
{ "Messages", MALLOC_PROCESS_MESSAGES, },
{ "Screen Sharing", MALLOC_PROCESS_SCREENSHARING, },
{ "keychainsharingmessagingd", MALLOC_PROCESS_KEYCHAINSHARINGMESSAGINGD, },
-
- { "VTEncoderXPCService", MALLOC_PROCESS_VTENCODERXPCSERVICE, },
#endif // TARGET_OS_OSX
-
- { "ReportCrash", MALLOC_PROCESS_REPORTCRASH, },
- { "AudioConverterService", MALLOC_PROCESS_AUDIOCONVERTERSERVICE, },
-
};
if (getpid() == 1) {
@@ -582,12 +566,8 @@
for (size_t i = 0; i < countof(name_identity_mapping); i++) {
if (!strcmp(name, name_identity_mapping[i].name)) {
malloc_process_identity = name_identity_mapping[i].identity;
- return;
- }
- }
-
- if (os_security_config_get() & OS_SECURITY_CONFIG_HARDENED_HEAP) {
- malloc_process_identity = MALLOC_PROCESS_HARDENED_HEAP_CONFIG;
+ break;
+ }
}
}
@@ -671,19 +651,14 @@
ENABLEMENT_CASE(MANAGEDASSETSD, true);
ENABLEMENT_CASE(POLARISD, true);
- ENABLEMENT_CASE_FF(ARKITD, arkitd, true, true);
- ENABLEMENT_CASE_FF(BACKBOARDD, backboardd, true, true);
- ENABLEMENT_CASE_FF(WAKEBOARDD, wakeboardd, true, true);
- ENABLEMENT_CASE_FF(REALITYCAMERAD, realitycamerad, true, true);
+ ENABLEMENT_CASE_FF(ARKITD, arkitd, false, false);
+ ENABLEMENT_CASE_FF(BACKBOARDD, backboardd, false, false);
+ ENABLEMENT_CASE_FF(WAKEBOARDD, wakeboardd, false, false);
+ ENABLEMENT_CASE_FF(REALITYCAMERAD, realitycamerad, false, false);
#endif
ENABLEMENT_CASE_FF(AEGIRPOSTER, aegirposter, false, false);
ENABLEMENT_CASE_FF(COLLECTIONSPOSTER, CollectionsPoster, false, false);
-
-#if TARGET_OS_WATCH
- ENABLEMENT_CASE_FF(BACKBOARDD, backboardd, false, false);
- ENABLEMENT_CASE_FF(CLOCKFACE, ClockFace, false, false);
-#endif
#if TARGET_OS_OSX
ENABLEMENT_CASE(GROUPSESSIONSERVICE, true);
@@ -696,16 +671,6 @@
#if TARGET_OS_OSX
ENABLEMENT_CASE(VTDECODERXPCSERVICE, true);
#endif
-
-#if TARGET_OS_OSX
- ENABLEMENT_CASE_FF(VTENCODERXPCSERVICE, VTEncoderXPCService, false, false);
-#endif
-
- ENABLEMENT_CASE(REPORTCRASH, true);
- ENABLEMENT_CASE(AUDIOCONVERTERSERVICE, true);
-
-
- ENABLEMENT_CASE(HARDENED_HEAP_CONFIG, true);
default:
return false;
@@ -734,14 +699,13 @@
} else
#endif // CONFIG_MALLOC_PROCESS_IDENTITY
{
-#if MALLOC_TARGET_IOS_ONLY || TARGET_OS_VISION || TARGET_OS_OSX || \
- TARGET_OS_WATCH
+#if MALLOC_TARGET_IOS_ONLY || TARGET_OS_VISION
secure_allocator = malloc_secure_feature_enabled(
SecureAllocator_SystemWide, true, true);
#else
secure_allocator = malloc_secure_feature_enabled(
SecureAllocator_SystemWide, false, false);
-#endif // MALLOC_TARGET_IOS_ONLY || TARGET_OS_VISION || TARGET_OS_OSX
+#endif // MALLOC_TARGET_IOS_ONLY || TARGET_OS_VISION
}
#if TARGET_OS_OSX && !TARGET_CPU_ARM64
@@ -749,6 +713,14 @@
secure_allocator = false;
}
#endif // TARGET_OS_OSX && !TARGET_CPU_ARM64
+
+#if TARGET_OS_OSX
+ bool allow_non_platform = os_feature_enabled_simple(libmalloc,
+ SecureAllocator_NonPlatform, false);
+ if (malloc_xzone_allow_non_platform != allow_non_platform) {
+ malloc_xzone_allow_non_platform = allow_non_platform;
+ }
+#endif // TARGET_OS_OSX
if (secure_allocator != malloc_xzone_enabled) {
malloc_xzone_enabled = secure_allocator;
@@ -1312,12 +1284,12 @@
size_t malloc_zones_size = malloc_num_zones * sizeof(malloc_zone_t *);
mach_vm_size_t alloc_size = round_page(malloc_zones_size + vm_page_size);
mach_vm_address_t vm_addr;
-
- vm_addr = (mach_vm_address_t)mvm_allocate_plat(0, (size_t)alloc_size, 0,
- VM_FLAGS_ANYWHERE, MALLOC_GUARDED_METADATA,
- VM_MEMORY_MALLOC, NULL);
- if (vm_addr == 0) {
- malloc_report(ASL_LEVEL_ERR, "malloc_zone_register allocation failed\n");
+ int alloc_flags = VM_FLAGS_ANYWHERE | VM_MAKE_TAG(VM_MEMORY_MALLOC);
+
+ vm_addr = vm_page_size;
+ kern_return_t kr = mach_vm_allocate(mach_task_self(), &vm_addr, alloc_size, alloc_flags);
+ if (kr) {
+ malloc_report(ASL_LEVEL_ERR, "malloc_zone_register allocation failed: %d\n", kr);
return;
}
@@ -1449,10 +1421,6 @@
set_flags_from_environment();
-
- // Add-in mask bits that can be set via env var MallocEnableMSLAtLimitWarning, for libdispatch to setup the desired handlers
- malloc_memorypressure_mask_default_4libdispatch |= malloc_memorystatus_mask_resource_exception_handling;
- malloc_memorypressure_mask_msl_4libdispatch |= malloc_memorystatus_mask_resource_exception_handling;
if (malloc_report_config) {
malloc_report(ASL_LEVEL_INFO, "Internal Security Policy: %d\n",
@@ -1533,7 +1501,8 @@
#if CONFIG_MAGAZINE_DEFERRED_RECLAIM
mach_vm_reclaim_error_t vmdr_kr = VM_RECLAIM_SUCCESS;
if (large_cache_enabled) {
- const bool xzone_deferred_reclaim = initial_xzone_zone;
+ const bool xzone_deferred_reclaim =
+ CONFIG_XZM_DEFERRED_RECLAIM && initial_xzone_zone;
if (xzone_deferred_reclaim) {
// xzone_malloc will own the deferred_reclaim buffer
large_cache_enabled = false;
@@ -1698,14 +1667,11 @@
#if TARGET_OS_OSX
// rdar://99288027
- if (dyld_get_active_platform() == PLATFORM_MACOS &&
- !dyld_program_sdk_at_least(dyld_platform_version_macOS_13_0)) {
+ if (!dyld_program_sdk_at_least(dyld_platform_version_macOS_13_0)) {
if (malloc_zero_policy == MALLOC_ZERO_ON_FREE) {
malloc_zero_policy = MALLOC_ZERO_ON_ALLOC;
- malloc_xzone_enabled = false;
- }
- }
-
+ }
+ }
#else // TARGET_OS_OSX
#endif // TARGET_OS_OSX
@@ -2056,6 +2022,9 @@
long value = malloc_common_convert_to_long(flag, &endp);
if (!*endp && endp != flag && (value == 0 || value == 1)) {
malloc_xzone_enabled = value;
+ malloc_xzone_enabled_override = value ?
+ MALLOC_XZONE_OVERRIDE_ENABLED :
+ MALLOC_XZONE_OVERRIDE_DISABLED;
} else {
malloc_report(ASL_LEVEL_ERR, "MallocSecureAllocator must be 0 or 1.\n");
}
@@ -2643,7 +2612,7 @@
}
// excludes 0 == alignment
// relies on sizeof(void *) being a power of two.
- if (alignment < MALLOC_ZONE_MALLOC_DEFAULT_ALIGN ||
+ if (alignment < sizeof(void *) ||
0 != (alignment & (alignment - 1))) {
err = EINVAL;
goto out;
@@ -3064,7 +3033,7 @@
// test made in malloc_zone_memalign to vet each request. Only if that test fails
// and returns NULL, do we arrive here to detect the bogus alignment and give the
// required EINVAL return.
- if (alignment < MALLOC_ZONE_MALLOC_DEFAULT_ALIGN || // excludes 0 == alignment
+ if (alignment < sizeof(void *) || // excludes 0 == alignment
0 != (alignment & (alignment - 1))) { // relies on sizeof(void *) being a power of two.
return EINVAL;
}
@@ -3144,8 +3113,8 @@
}
void *
-_malloc_zone_malloc_with_options_outlined(malloc_zone_t *zone, size_t align,
- size_t size, malloc_zone_malloc_options_t options)
+_malloc_zone_malloc_with_options_np_outlined(malloc_zone_t *zone, size_t align,
+ size_t size, malloc_options_np_t options)
{
void *ptr = NULL;
@@ -3170,8 +3139,7 @@
// There's no reasonable way to have the fallback callsite type
// descriptor work here. That's okay, as it's uncommon and SPI, so its
// callers should be built with TMO.
- const malloc_zone_malloc_options_t known_options =
- MALLOC_ZONE_MALLOC_OPTION_CLEAR
+ const malloc_options_np_t known_options = MALLOC_NP_OPTION_CLEAR
;
if (options & ~known_options) {
malloc_zone_error(MALLOC_ABORT_ON_ERROR, true,
@@ -3181,12 +3149,12 @@
}
- if (align > MALLOC_ZONE_MALLOC_DEFAULT_ALIGN) {
+ if (align) {
ptr = malloc_zone_memalign(zone, align, size);
- if (ptr && (options & MALLOC_ZONE_MALLOC_OPTION_CLEAR)) {
+ if (ptr && (options & MALLOC_NP_OPTION_CLEAR)) {
memset(ptr, 0, size);
}
- } else if (options & MALLOC_ZONE_MALLOC_OPTION_CLEAR) {
+ } else if (options & MALLOC_NP_OPTION_CLEAR) {
ptr = malloc_zone_calloc(zone, 1, size);
} else {
ptr = malloc_zone_malloc(zone, size);
@@ -3199,7 +3167,7 @@
if (os_unlikely(malloc_logger)) {
uint32_t flags = MALLOC_LOG_TYPE_ALLOCATE | MALLOC_LOG_TYPE_HAS_ZONE;
- if (options & MALLOC_ZONE_MALLOC_OPTION_CLEAR) {
+ if (options & MALLOC_NP_OPTION_CLEAR) {
flags |= MALLOC_LOG_TYPE_CLEARED;
}
malloc_logger(flags, (uintptr_t)zone, (uintptr_t)size,
@@ -3224,8 +3192,8 @@
}
void *
-malloc_zone_malloc_with_options(malloc_zone_t *zone, size_t align,
- size_t size, malloc_zone_malloc_options_t options)
+malloc_zone_malloc_with_options_np(malloc_zone_t *zone, size_t align,
+ size_t size, malloc_options_np_t options)
{
if (os_unlikely((align != 0) && (!powerof2(align) ||
((size & (align-1)) != 0)))) { // equivalent to (size % align != 0)
@@ -3233,7 +3201,7 @@
}
if (os_unlikely(malloc_logger || malloc_slowpath)) {
- return _malloc_zone_malloc_with_options_outlined(zone, align, size,
+ return _malloc_zone_malloc_with_options_np_outlined(zone, align, size,
options);
}
@@ -3246,15 +3214,8 @@
options, malloc_callsite_fallback_type_id());
}
- return _malloc_zone_malloc_with_options_outlined(zone, align, size,
+ return _malloc_zone_malloc_with_options_np_outlined(zone, align, size,
options);
-}
-
-void * __sized_by_or_null(size)
-malloc_zone_malloc_with_options_np(malloc_zone_t *zone, size_t align,
- size_t size, malloc_options_np_t options)
-{
- return malloc_zone_malloc_with_options(zone, align, size, options);
}
/********* Purgeable zone ************/
@@ -3378,9 +3339,11 @@
malloc_register_stack_logger();
}
- if (event & malloc_memorystatus_mask_resource_exception_handling) {
+#if ENABLE_MEMORY_RESOURCE_EXCEPTION_HANDLING
+ if (event & MALLOC_MEMORYSTATUS_MASK_RESOURCE_EXCEPTION_HANDLING) {
malloc_register_stack_logger();
}
+#endif /* ENABLE_MEMORY_RESOURCE_EXCEPTION_HANDLING */
if (msl.handle_memory_event) {
// Let MSL see the event.