=== DF-5784 FIX VALIDATION (patched kernel #1 Oct 12 15:27:54 2026,
fix.diff = hammer2_bref_sane() + base_find skip) ===
sh /root/poc/df5784/run_df5784.sh (control then craftB; "^passes=" lines elided)

DONE entries=1000000 passes=333333 chain_allocs=823
CONTROL_DELTA=0
=== DF-5784 crafted: craftB.img (wrapped dirent range) ===
crafted chain_allocs start=824
entries=100000 chain_allocs=824
...
DONE entries=1000000 passes=499999 chain_allocs=824
CRAFTED_DELTA=0
AFTER_UMOUNT=821
DF5784_DONE

Baseline for the same image on the stock kernel: unkillable wedge, umount
hang, monotone chain leak (see run.log / run_wedge_transcript.txt).