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DF-0020 PoC environment (DragonFlyBSD master DEV guest)
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Guest:        DragonFly 6.5-DEVELOPMENT #0 (unpatched baseline kernel)
              kernel: /boot/kernel/kernel (X86_64_GENERIC, INVARIANTS on)
Toolchain:    cc 8.3 [DragonFly] Release/2019-02-22
SSH user:     maxx (uid 1001, not in wheel)
Loader:       /boot/loader/kernel = bare /boot/kernel/kernel
              (loader boots the bare-name kernel, NOT kernel.stripped)
Console:      comconsole (serial) -> captured to dfbsd-qemu/boot.log

uname -a:
DragonFly dfbsd 6.5-DEVELOPMENT DragonFly 6.5-DEVELOPMENT #0: Thu Jul  2 06:02:54 UTC 2026
    root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC  x86_64

sysctl kern.version:
DragonFly 6.5-DEVELOPMENT #0: Thu Jul  2 06:02:54 UTC 2026
    root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC

cc --version:
cc 8.3 [DragonFly] Release/2019-02-22

sysctl kern.elf64.fallback_brand = -1  (no fallback brand — important for the
                                        EI_OSABI=200 discrimination test; see
                                        VERDICT.md "Why EI_OSABI=200").

sysctl kern.ident = X86_64_GENERIC

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Relevant kernel build knobs (X86_64_GENERIC):
  options INVARIANTS        # default-on; does not affect this bug
  (no SMAP, no SMEP, no KASLR, no PTI on this guest — see AGENT.md)
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