DF-3876 / verdict.json
{ "finding_id": "DF-3876", "status": "inconclusive", "reproduced": 0, "impact": "none", "confidence": "certain", "verdict": "log_state->boot_seq_num is dereferenced before the error check whose EBUSY/ENOMEM paths leave log_state NULL (mfi.c:1020-1026 via mfi_get_log_state mfi.c:977-1005); the attach caller even discards the error via a comma-operator bug (mfi.c:703). Boot-time NULL-deref panic, improbable trigger; straightforward fix.", "exploit_chain": "", "evidence": "VERDICT.md", "kernel_refs": [ "sys/dev/raid/mfi/mfi.c:1020", "sys/dev/raid/mfi/mfi.c:1022", "sys/dev/raid/mfi/mfi.c:984", "sys/dev/raid/mfi/mfi.c:703" ], "poc_changes": "no runnable PoC (needs pool exhaustion at boot)", "attempts": 0, "guest_uname": "DragonFly dfbsd 6.5-DEVELOPMENT x86_64 (no MegaRAID)", "runtime_sec": 0, "guest_dirty": 0, "build_cmd": "", "run_cmd": "", "code_hash": "", "notes": "confidence certain refers to the code defect; triggerability improbable", "recommended_fix": "move the boot_seq_num assignment after the error check; fix comma operator", "fix_status": "not_testable", "fix_baseline_reproduced": 0, "fix_patched_reproduced": 0, "fix_verdict": "reorder fix; not validatable without HW", "fix_evidence": "fix.diff" } |