{
 "finding_id": "DF-3074",
 "status": "not_reproduced",
 "reproduced": 0,
 "impact": "none",
 "confidence": "certain",
 "verdict": "Not executable on this rig: the path is diskless-boot only (nfs_mountroot -> nfs_mountdiskless for root/swap), requiring PXE/BOOTP control of the boot environment - the vm.sh lifecycle cannot reconfigure the guest to diskless boot. Code-certain: mountnfs() takes ownership of nam (stored as nmp->nm_nam at nfs_vfsops.c:1077) and its bad: label already frees it via nfs_free_mount (:1167-1171 -> kfree nmp->nm_nam :1255-1257), then nfs_mountdiskless kfrees the same pointer again at :775. Source-certain double free; impact crash-of-an-already-failing-boot or PXE-groomed heap corruption.",
 "exploit_chain": "",
 "evidence": "VERDICT.md + run.log + sources",
 "kernel_refs": [
  "sys/vfs/nfs/nfs_vfsops.c:745",
  "sys/vfs/nfs/nfs_vfsops.c:775",
  "sys/vfs/nfs/nfs_vfsops.c:1255"
 ],
 "poc_changes": "none",
 "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": "",
 "run_cmd": "see README.md",
 "code_hash": null,
 "notes": "fix_status: not_testable (not reproduced)",
 "recommended_fix": "diff --git a/sys/vfs/nfs/nfs_vfsops.c: drop kfree(nam) in the haderror path of nfs_mountdiskless (ownership transferred to mountnfs).\n"
}