⬢ DragonFlyBSD Kernel Audit
DF-3877 / verdict.json
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{
  "finding_id": "DF-3877",
  "status": "inconclusive",
  "reproduced": 0,
  "impact": "none",
  "confidence": "speculative",
  "verdict": "LD_DELETE pre-check validates the volume, post-check assumes it still exists and KASSERTs/derefs NULL when an AEN offline event removes it mid-DCMD; the drivers own commented-out twin fix (mfi.c:1502-1505) proves the pattern has panicked before. Race + operator access needed; guarded fix attached.",
  "exploit_chain": "",
  "evidence": "VERDICT.md",
  "kernel_refs": [
    "sys/dev/raid/mfi/mfi.c:2629",
    "sys/dev/raid/mfi/mfi.c:2633",
    "sys/dev/raid/mfi/mfi.c:1494",
    "sys/dev/raid/mfi/mfi_disk.c:189"
  ],
  "poc_changes": "no runnable PoC (race + HW)",
  "attempts": 0,
  "guest_uname": "DragonFly dfbsd 6.5-DEVELOPMENT x86_64 (no MegaRAID)",
  "runtime_sec": 0,
  "guest_dirty": 0,
  "build_cmd": "",
  "run_cmd": "",
  "code_hash": "",
  "notes": "",
  "recommended_fix": "NULL-guard ld in mfi_check_command_post like the decode_evt twin",
  "fix_status": "not_testable",
  "fix_baseline_reproduced": 0,
  "fix_patched_reproduced": 0,
  "fix_verdict": "guard fix; not validatable without HW",
  "fix_evidence": "fix.diff"
}