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fix: Steam Deck/Ubuntu crash - use system libzstd.so

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The bundled libzstd.so is incompatible with glibc 2.41's stricter heap
validation, causing "free(): invalid pointer" crashes.

Solution: Automatically replace bundled libzstd.so with system version
on Linux. The launcher detects and symlinks to /usr/lib/libzstd.so.1.

- Auto-detect system libzstd at common paths (Arch, Debian, Fedora)
- Backup bundled version as libzstd.so.bundled
- Create symlink to system version
- Add HYTALE_NO_LIBZSTD_FIX=1 to disable if needed

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
sanasol
2026-01-27 19:40:42 +01:00
parent ee18455b4b
commit 9ec97f9d33
3 changed files with 237 additions and 0 deletions
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49
backend/managers/gameLauncher.js
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@@ -285,6 +285,55 @@ exec "$REAL_JAVA" "\${ARGS[@]}"
const gpuEnv = setupGpuEnvironment(gpuPreference);
Object.assign(env, gpuEnv);
// Linux: Replace bundled libzstd.so with system version to fix glibc 2.41+ crash
// The bundled libzstd causes "free(): invalid pointer" on Steam Deck / Ubuntu LTS
if (process.platform === 'linux' && process.env.HYTALE_NO_LIBZSTD_FIX !== '1') {
const clientDir = path.dirname(clientPath);
const bundledLibzstd = path.join(clientDir, 'libzstd.so');
const backupLibzstd = path.join(clientDir, 'libzstd.so.bundled');
// Common system libzstd paths
const systemLibzstdPaths = [
'/usr/lib/libzstd.so.1', // Arch Linux, Steam Deck
'/usr/lib/x86_64-linux-gnu/libzstd.so.1', // Debian/Ubuntu
'/usr/lib64/libzstd.so.1' // Fedora/RHEL
];
let systemLibzstd = null;
for (const p of systemLibzstdPaths) {
if (fs.existsSync(p)) {
systemLibzstd = p;
break;
}
}
if (systemLibzstd && fs.existsSync(bundledLibzstd)) {
try {
const stats = fs.lstatSync(bundledLibzstd);
// Only replace if it's not already a symlink to system version
if (!stats.isSymbolicLink()) {
// Backup bundled version
if (!fs.existsSync(backupLibzstd)) {
fs.renameSync(bundledLibzstd, backupLibzstd);
console.log(`Linux: Backed up bundled libzstd.so`);
} else {
fs.unlinkSync(bundledLibzstd);
}
// Create symlink to system version
fs.symlinkSync(systemLibzstd, bundledLibzstd);
console.log(`Linux: Linked libzstd.so to system version (${systemLibzstd}) for glibc 2.41+ compatibility`);
} else {
const linkTarget = fs.readlinkSync(bundledLibzstd);
console.log(`Linux: libzstd.so already linked to ${linkTarget}`);
}
} catch (libzstdError) {
console.warn(`Linux: Could not replace libzstd.so: ${libzstdError.message}`);
}
}
}
try {
let spawnOptions = {
stdio: ['ignore', 'pipe', 'pipe'],