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Details of issue NIXPKGS-2026-0236

NIXPKGS-2026-0236
published on 15 Feb 2026
updated 3 weeks ago by @LeSuisse Activity log
  • Created automatic suggestion
  • @LeSuisse accepted
  • @LeSuisse published on GitHub
libjxl: Uninitialized memory read in decoder due to incorrect optimization in patch handling

A specially-crafted file can cause libjxl's decoder to read pixel data from uninitialized (but allocated) memory. This can be done by causing the decoder to reference an outside-image-bound area in a subsequent patches. An incorrect optimization causes the decoder to omit populating those areas.

Affected products

libjxl
  • =<0.11.1

Matching in nixpkgs

Package maintainers

Upstream issue: https://github.com/libjxl/libjxl/pull/4495
Upstream patch: https://github.com/libjxl/libjxl/commit/4523cf652f568f1fbb57bf9a10ae3caae785cd9f