⬢ DragonFlyBSD Kernel Audit
DF-5073 / manifest.json
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{
  "finding_id": "DF-5073",
  "verdict": "reproduced",
  "impact": "none",
  "confidence": "certain",
  "reproduce": {
    "build": "./build.sh (iasl on guest; cc on guest)",
    "run": "./run.sh",
    "expected": "control boot: hw.acpi.acline=1 for uid 1001; trigger boot (_PSR with no return object): hw.acpi.acline=0 instead of -1 — 0 is reachable only via acpi_GetInteger's uninitialized ACPI_OBJECT param after an AE_OK no-object evaluation (nsxfeval.c:541-545), proving uninitialized kernel stack is exported to unprivileged users via the world-readable sysctl"
  },
  "kernel_refs": [
    "sys/dev/acpica/acpi_acad.c:110",
    "sys/dev/acpica/acpi_acad.c:111",
    "sys/dev/acpica/acpi_acad.c:115",
    "sys/dev/acpica/acpi_acad.c:116",
    "sys/dev/acpica/acpi_acad.c:289",
    "sys/dev/acpica/acpi_acad.c:233",
    "sys/dev/acpica/acpi.c:2177",
    "sys/dev/acpica/acpi.c:2179",
    "sys/dev/acpica/acpi.c:2180",
    "sys/contrib/dev/acpica/source/components/namespace/nsxfeval.c:541"
  ],
  "artifacts": [
    "README.md", "VERDICT.md",
    "ssdt_acad_sane.asl", "ssdt_acad_sane.aml",
    "ssdt_acad_leak.asl", "ssdt_acad_leak.aml",
    "groom.c", "build.sh", "run.sh",
    "build.log", "run.log", "run.2.log", "run.sane.log",
    "env.txt", "fix.diff", "manifest.json", "verdict.json"
  ]
}