DF-3347 / verdict.json
{ "finding_id": "DF-3347", "status": "reproduced", "reproduced": 1, "poc_path": "findings/poc/DF-3347", "artifact_dir": "findings/poc/DF-3347", "build_cmd": "./build.sh", "run_cmd": "df3347 poison", "code_hash": "a69e61fe2f30d767c640dcc9d45ffc55cbc7428ffa599d966ca46fb245f87fec", "build_log": "build.log", "run_log": "allruns.log", "impact": "panic", "confidence": "certain", "verdict": "lagg_lacp_attach ignores lacp_port_create failures; the poisoned port (lp_psc NULL) is dereferenced by every later LACP operation walking sc_ports. Fault-injection harness faults deterministically; live trigger needs if_addmulti/kmalloc failure.", "exploit_chain": "", "evidence": "poison case rc=139; both-ports control rc=0; FIXED abort-on-failure clean", "kernel_refs": [ "sys/net/lagg/if_lagg.c:2081-2082", "sys/net/lagg/ieee8023ad_lacp.c:530-565" ], "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.diff", "fix_status": "fixed", "fix_verdict": "Harness A/B (fixruns.log): the FIXED build - carrying the natural one-line fix in the same verbatim code - runs clean on the exact input that faults the stock build. Kernel not rebuilt for these Low/hardening items.", "fix_baseline_reproduced": 1, "fix_patched_reproduced": 0 } |