{
  "finding_id": "DF-5567",
  "status": "untested",
  "verdict": "untested (Info hardening; needs a synthetic si_iosize_max=512 dump driver; code-level proof complete: chunk==0 -> pgs never advances)",
  "reproduced": false,
  "impact": "silent panic-dump hang (no dump produced)",
  "confidence": "speculative",
  "exploit_chain": "",
  "evidence": "static: dump_machdep.c:168,175-177 integer division without floor; runtime negative pack findings/poc/neg-evidence-dumpmachdep-pass2/",
  "kernel_refs": [
    "sys/platform/pc64/x86_64/dump_machdep.c:168",
    "sys/dev/disk/subr_disk.c:934"
  ],
  "poc_changes": "",
  "attempts": 0,
  "guest_uname": "DragonFly dfbsd 6.5-DEVELOPMENT #0: Thu Jul 2 06:02:54 UTC 2026 root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC x86_64",
  "runtime_sec": 0,
  "guest_dirty": 0,
  "build_cmd": "n/a",
  "run_cmd": "n/a",
  "code_hash": "",
  "notes": "Info; also post-Dump complete no-auto-reboot wedge documented for kern_shutdown.c pass (wedge-forensics.txt)",
  "recommended_fix": "max_iosize = MAX(PAGE_SIZE, min(MAXPHYS, di->maxiosize)) in both dump paths",
  "fix_status": "not_testable",
  "fix_baseline_reproduced": 0,
  "fix_patched_reproduced": 0,
  "fix_verdict": "",
  "fix_evidence": ""
}