{
 "finding_id": "DF-3455",
 "status": "reproduced",
 "reproduced": 1,
 "poc_path": "findings/poc/DF-3455",
 "artifact_dir": "findings/poc/DF-3455",
 "build_cmd": "./build.sh",
 "run_cmd": "(no arg)",
 "code_hash": "e50160aadace6e972685d453785158ff13a826c88b5d1bc827e6c2f173a0eb76",
 "build_log": "build.log",
 "run_log": "allruns.log",
 "impact": "denial_of_service",
 "confidence": "certain",
 "verdict": "NOL/CAC timeout arithmetic overflows before the wrap-aware compare: root sysctl net.wlan.nol_timeout=2147484 makes nol_timeout*1000 wrap (signed UB), collapsing NOL_TIMEOUT from 180000 ticks (30min) to 35; and with ticks near INT_MAX the pre-addition nol_event+NOL_TIMEOUT overflow releases a radard channel ~1500 ticks after detection instead of 180000. Pure-arithmetic harness over the verbatim macros (wlan absent on guest).",
 "exploit_chain": "",
 "evidence": "misc3.log DF-3455: [b] NOL_TIMEOUT=35 ticks; [c] released after ~1500 ticks (expected 180000)",
 "kernel_refs": [
  "sys/netproto/802_11/wlan/ieee80211_dfs.c:57-63",
  "sys/netproto/802_11/wlan/ieee80211_dfs.c:244-247",
  "sys/netproto/802_11/wlan/ieee80211_dfs.c:268",
  "sys/netproto/802_11/ieee80211_dragonfly.h:130"
 ],
 "poc_changes": "",
 "attempts": 3,
 "guest_uname": "DragonFly dfbsd 6.5-DEVELOPMENT DragonFly 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": 60,
 "guest_dirty": 0,
 "runner": "df-bsd-reviewer",
 "notes": "",
 "recommended_fix": "",
 "fix_status": "fixed",
 "fix_verdict": "Fix: clamp/64-bit the sysctl product and do the expiry compare as (int)(now - nol_event) >= NOL_TIMEOUT (subtraction-form wrap-safe compare); harness with the corrected compare holds the channel for the full 180000 ticks.",
 "fix_baseline_reproduced": 1,
 "fix_patched_reproduced": 0
}