/dev/vn0: media size 128.00MB
Warning: Block size restricts cylinders per group to 94.
/dev/vn0:	262144 sectors in 64 cylinders of 1 tracks, 4096 sectors
	128.0MB in 1 cyl groups (94 c/g, 188.00MB/g, 16256 i/g)
super-block backups (for fsck -b #) at:
 32
[sb-before] bsize=16384 fsize=2048 frag=8 bshift=14 fshift=11 fragshift=3
[sb-before] bmask=ffffc000 fmask=fffff800 qbmask=0000000000003fff qfmask=00000000000007ff sbsize=2048 nindir=4096
[sb-after ] bsize=16384 fsize=2048 frag=8 bshift=14 fshift=11 fragshift=3
[sb-after ] bmask=ffffc000 fmask=fffff800 qbmask=0000000000003fff qfmask=00000000000007ff sbsize=2048 nindir=4096
[*] baseline run: leaving superblock stock
mount: warning: fstype in disklabel not set to anything I understand
attempting to mount with -t ufs
[*] crafted image mounted (baseline); trigger as unprivileged maxx:
[*] trigger: uid=1001 file=/mnt/f bytes=16384
[*] write returned 16384
[!] trigger survived — result:
-rw-r--r--  1 maxx  wheel  16384 Sep  8 04:39 /mnt/f
[!] NO PANIC (expected for baseline; BUG NOT REPRODUCED for crafted)