DF-2705 / manifest.json
{ "finding_id": "DF-2705", "title": "vop_write quota accounting skips unlinked-open files (va_nlink==0) → complete quota enforcement bypass when vfs.quota_enabled=1; concurrent-writer delta TOCTOU", "verdict": "untested", "impact": "none", "severity": "Low", "confidence": "likely", "reason_not_run": "Requires booting the shared guest with non-default vfs.quota_enabled=1 tunable and vquotactl limit setup to demo an accounting bypass; Low severity, disproportionate to the guest reconfiguration.", "reproduce": null, "kernel_refs": [ "sys/kern/vfs_vopops.c:472", "sys/kern/vfs_vopops.c:477", "sys/kern/vfs_vopops.c:489", "sys/kern/vfs_vopops.c:495", "sys/kern/vfs_vopops.c:1666", "sys/kern/vfs_quota.c:111" ], "artifacts": ["README.md", "VERDICT.md", "verdict.json", "manifest.json"] } |