DF-5217 / verdict.json
{ "finding_id": "DF-5217", "status": "untested", "verdict": "untested (Low, root-gated timing race; Phase V skipped per contract; kldload liveness evidence in reviewer notes)", "reproduced": false, "impact": "kernel UAF executing freed module text - panic ceiling", "confidence": "likely", "exploit_chain": "", "evidence": "static trace: syscons.c:2613-2627 unlocked removal vs 2226-2230/2633-2636 locked entry; link_elf.c:665 unmap", "kernel_refs": [ "sys/dev/misc/syscons/syscons.c:2613", "sys/dev/misc/syscons/syscons.c:2622", "sys/kern/link_elf.c:665" ], "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": "Low; Phase V skipped per contract; fade_saver.ko kldload liveness verified on guest", "recommended_fix": "hold syscons_lock across wait_scrn_saver_stop + current_saver publication in remove_scrn_saver; wrap sc_*_scrn_saver in syscons_lock (order syscons_lock->vga_token)", "fix_status": "not_testable", "fix_baseline_reproduced": 0, "fix_patched_reproduced": 0, "fix_verdict": "", "fix_evidence": "" } |