⬢ DragonFlyBSD Kernel Audit
DF-5798 / manifest.json
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{
  "finding_id": "DF-5798",
  "verdict": "not_reproduced (speculative race; code-level case solid, window not hit)",
  "impact": "potential namecache refcount underflow / UAF (panic to exploitable); not observed",
  "reproduce": {
    "build": "cc -O -o /tmp/reexec /tmp/reexec.c",
    "run": "sh /tmp/stress.sh  (6 rounds: tmpfs mount, 8x400 self-reexecing procs on the mount, respawning busy-holder, 10x umount -f per round)",
    "expected": "if the race is won: refcount underflow on newly-installed p_textnch ncp -> delayed panic/UAF. Observed: nothing - STRESS-DONE, mount cleaned up, guest up, no panic."
  },
  "kernel_refs": [
    "sys/kern/vfs_syscalls.c:777",
    "sys/kern/vfs_syscalls.c:768",
    "sys/kern/vfs_syscalls.c:946",
    "sys/kern/vfs_nlookup.c:414",
    "sys/kern/kern_exec.c:549",
    "sys/kern/kern_exit.c:498",
    "sys/kern/kern_proc.c:1401"
  ],
  "artifacts": [
    "README.md", "VERDICT.md", "reexec.c", "stress.sh",
    "build.sh", "run.sh", "build.log", "run.log", "dmesg.txt",
    "fix.diff", "manifest.json", "verdict.json"
  ]
}