mirror of
https://github.com/block/buzz.git
synced 2026-08-18 06:50:31 +02:00
581baa6254
## What and why The Buzz AppImage is built on `ubuntu:22.04`, which links WebKitGTK against FreeType 2.11.1. Because `libfreetype.so.6` is on the linuxdeploy community excludelist, the bundled WebKit loads the **host's** FreeType at runtime instead of the bundled one. FreeType 2.13.0 (released 2023-02-09) added `FT_Bool read_variable` to `FT_ColorStopIterator`, growing the struct from 16 to 20 bytes. Any host running FreeType ≥ 2.13 (Fedora 42+, Ubuntu 24.04+) has a struct-layout mismatch with the 22.04-compiled WebKit. The mismatched offsets corrupt color-stop index arithmetic inside Skia's COLRv1 renderer, producing the assertion abort in issues #2548 and #2982: ``` stl_vector.h:1123: Assertion '__n < this->size()' failed. ... colrv1_configure_skpaint(FT_Face, ...) ... ``` ## Fix Bump the build container to `ubuntu:24.04` (noble), which ships FreeType **2.13.2**. Noble's struct layout matches every crash-affected host. The ABI mismatch disappears and the crash is eliminated at root. WebKitGTK also advances from **2.50.4** (jammy backport) to **2.52.3** (noble backport). ## Glibc floor change | Build base | glibc floor | Oldest supported AppImage distro | |---|---|---| | ubuntu:22.04 (before) | 2.35 | Ubuntu 22.04 LTS, Debian 12 | | ubuntu:24.04 (after) | 2.39 | Ubuntu 24.04 LTS, Fedora 40+ | Ubuntu 22.04 LTS and Debian 12 users lose AppImage support. Both distributions continue to receive first-class `.deb` / `.rpm` packages, which use the system WebKit and are unaffected. The crash-affected users (Fedora 42/44, Ubuntu 24.04+) all have glibc ≥ 2.39. ## Changes - `.github/workflows/linux-canary.yml:24` — container pin updated to `ubuntu:24.04@sha256:4fbb8e6a…` - `.github/workflows/release.yml:479` — same container pin updated - `.github/workflows/release.yml:501` — comment version string updated from 22.04 to 24.04 `fix-appimage.sh` and `desktop/src-tauri/**` are untouched. The #3573 fontconfig stopgap remains active; retirement is a separate follow-on PR once this fix is verified on a shipped build. ## Sequencing `docs/linux-rendering-troubleshooting.md` (introduced in #3573) will receive a glibc-floor callout section once #3573 merges — adding it here would conflict with #3573's open branch. Context: #2548, #2982. Signed-off-by: Will Pfleger <pfleger.will@gmail.com> Co-authored-by: npub1mn7jgtj4w2pd0g0zeuhxsa6jy6p0rewxz4kujt98my82ahfmp72sxjexk7 <dcfd242e557282d7a1e2cf2e6877522682f1e5c6156dc92ca7d90eaedd3b0f95@buzz.block.builderlab.xyz>