⬢ DragonFlyBSD Kernel Audit
DF-2683 / manifest.json
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{
  "finding_id": "DF-2683",
  "title": "fsetown() publishes uninitialized sigio into owner list; exit/pgdelete teardown consumes half-born entry -> kernel panic / machine wedge",
  "severity": "Medium",
  "bucket": "base:kern",
  "verdict": "reproduced",
  "impact": "panic",
  "reproduce": {
    "build": "cc -O2 -o fsetown_race fsetown_race.c",
    "run": "./fsetown_race 20000",
    "expected": "guest dies within first few hundred rounds: Fatal trap 12 in funsetown() (fault 0x8) or silent hard wedge"
  },
  "kernel_refs": [
    "sys/kern/kern_descrip.c:1351-1366",
    "sys/kern/kern_exit.c:376",
    "sys/kern/kern_proc.c:680"
  ],
  "artifacts": [
    "fsetown_race.c", "build.sh", "run.sh", "run.log", "panic.txt",
    "panic.dbg.txt", "env.txt", "VERDICT.md", "fix.diff",
    "verdict.json", "manifest.json"
  ]
}