⬢ DragonFlyBSD Kernel Audit
DF-4670 / verdict.json
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{
  "finding_id": "DF-4670",
  "poc_id": "DF-4670",
  "status": "untested",
  "reproduced": 0,
  "impact": "Unprivileged local kernel panic on ath(4)+ATH_DIAGAPI machines while DF-4320s missing priv check stands; NULL read at fixed address 0 - pure DoS",
  "confidence": "likely",
  "attempts": 0,
  "guest_uname": null,
  "code_hash": null,
  "exploit_chain": [],
  "evidence": "argsize-only validation for HAL_DIAG_CHECK_HANGS; ath_ioctl_diag leaves indata NULL when ATH_DIAG_IN is cleared while ad_in_size passes through - *(int*)NULL read. DF-1521 sibling (ah.c EEREAD/REGS) - this is the ar5416_misc.c instance; ANI/SETREGS siblings noted. No ath hardware on guest.",
  "kernel_refs": [
    "sys/dev/netif/ath/ath_hal/ar5416/ar5416_misc.c:543",
    "sys/dev/netif/ath/ath_hal/ar5416/ar5416_misc.c:544",
    "sys/dev/netif/ath/ath_hal/ar5416/ar5416_misc.c:545",
    "sys/dev/netif/ath/ath_hal/ar5416/ar5416_misc.c:546"
  ],
  "verdict": "not_run: Low hardware-gated (no ath NIC on guest); source-certain",
  "fix_status": "not_testable",
  "fix_baseline_reproduced": 0,
  "fix_patched_reproduced": 0,
  "fix_verdict": "not_testable",
  "fix_evidence": "validate args!=NULL alongside argsize (and shield the whole family in ath_ioctl_diag) in finding markdown"
}