fuzz: weekly regression seeds (2026-06-07)

[lilith]

Weekly automated fuzz sweep for webpx.

New crashes

Target	Seed	Size	Repro?
limits_boundaries	limits_boundaries-crash-8e6fbe148cef	33 bytes	already-fixed

Original artifact: oom-804edd838aff7a2fa88758738d21400457377369 (45 bytes). Minimized to 33 bytes via cargo fuzz tmin. cargo test --all-features --test fuzz_regression passes on stable — the OOM is handled gracefully (returns an error rather than panicking), so the underlying issue is already fixed or properly bounded. Seed kept as cheap regression coverage per policy.

Per-target stats

Target	Execs	Coverage (cov/ft)	New seeds
decode_animation	2,000,343	172/283	0
decode_into	1,291,758	190/231	0
decode_static	211,570	185/232	0
decode_streaming	1,523,260	239/565	0
decoder_builder	846,196	341/527	0
dim_extremes	1,966,864	284/454	0
encode_roundtrip	631,555	365/454	0
image_info	315,729,002	41/42	0
limits_boundaries	~330,332 (OOM hit)	350/471	1
mux_metadata	49,546,919	130/187	0
stride_extremes	4,477,924	371/615	0
yuv_planes	20,372,537	253/281	0

Notes

• 12 targets fuzzed (4 more than the 8 listed in the sweep template: dim_extremes, limits_boundaries, stride_extremes, yuv_planes).
• Each target ran for 600 seconds with -max_len=65536 and -dict=webp.dict.
• No oversized minimizations; the single new seed is 33 bytes, well under the 8 KB ceiling.

---

Generated by Claude Code

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.85%. Comparing base (863d00b) to head (85b15f7).

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #13   +/-   ##
=======================================
  Coverage   78.85%   78.85%           
=======================================
  Files          18       18           
  Lines        4460     4460           
=======================================
  Hits         3517     3517           
  Misses        943      943           

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