DF-4090 / env.txt
# Guest environment (audit QEMU/KVM target, dfbsd-qemu/vm.sh) 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 # HARDWARE GATE (why no in-kernel reproduction is possible on this guest): pciconf -l (complete bus): hostb0@pci0:0:0:0: class=0x060000 card=0x11001af4 chip=0x12378086 rev=0x02 isab1@pci0:0:1:0: class=0x060100 card=0x11001af4 chip=0x70008086 rev=0x00 atapci0@pci0:0:1:1: class=0x010180 card=0x11001af4 chip=0x70108086 rev=0x00 none0@pci0:0:1:3: class=0x068000 card=0x11001af4 chip=0x71138086 rev=0x03 vgapci0@pci0:0:2:0: class=0x030000 card=0x11001af4 chip=0x11111234 rev=0x02 <- QEMU std VGA, not AMD DCE11 virtio_pci0@pci0:0:3:0: class=0x020000 card=0x00011af4 chip=0x10001af4 virtio_pci1@pci0:0:4:0: class=0x010000 card=0x00021af4 chip=0x10011af4 - No LSI/Avago/SAS HBA on the bus: mps(4) (and mpr(4)) never attach; every mps_mapping.c path is dormant. Exercising the mapping engine requires an mps-compatible IOC (real HBA, PCI passthrough, or a malicious emulator). - No AMD GPU: the amdgpu/dc stack (dce110_timing_generator.c) never leaves probe-time register probing of an absent ASIC. - kldstat: kernel + ehci.ko + xhci.ko only; no mps.ko/amdgpu.ko loaded. - Compiler: DragonFly cc 8.3 (base). Guest is the intentional no-SMAP/SMEP/ KASLR exploitation target; the limitation here is absent hardware, not hardening.