# Garry's Mod May 2025 Patch

- Product: Garry's Mod (https://whatsnew.fyi/product/garry-s-mod)
- Vendor: Facepunch Studios
- Date: 2025-05-09
- Original notes: https://store.steampowered.com/news/app/4000/view/521964845255362253
- Permalink: https://whatsnew.fyi/product/garry-s-mod/releases/2025-05-09-may-2025-patch

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- **changed** — Throw a non halting Lua error when hitting Lua file limit, to let players know that they have hit the limit
- **fixed** — Fixed a regression crash on Linux when almost finished loading a map
- **fixed** — Prevent crashes with steamworks library when used too early on dedicated servers
- **fixed** — Fixed console spam about invalid sprite orientation when the sprite material is simply missing
- **fixed** — Fixed HLTV clients being kicked due to mismatching SteamID
- **fixed** — Fixed a crash to do with env_projected_texture's texture
- **security** — Fixed some security issues reported on HackerOne
- **changed** — Remove unnecessary return value in WorldPickerMouseDisable hook so GM:VGUIMousePressAllowed hook works more reliably for addons
- **fixed** — Fixed Lua error with creator tool when trying to spawn NPCs that do not exist on the server
- **security** — Blocked .vdf and specific .cfg files from being accessible by the Lua file library
- **security** — Added one more known Lua backdoor URL to HTTP blacklist
- **security** — Increased default value of mem_max_heapsize to 512, and block it from being changed by Lua API
- **security** — Block datacachesize convar from being changed by Lua API, to prevent crashes when set to invalid values
- **fixed** — Fixed monitor and potentially other materials in Hammer acting strangely when using Fit option in texture application tool

Hello everyone,

A new patch has been released. This one contains mostly stability and security fixes.

Servers and clients are recommended to update as soon as possible.
The change list is as follows:

- Throw a non halting Lua error when hitting Lua file limit, to let players know that they have hit the limit

- Fixed a regression crash on Linux when almost finished loading a map

- Prevent crashes with steamworks library when used too early on dedicated servers

- Fixed console spam about invalid sprite orientation when the sprite material is simply missing

- Fixed HLTV clients being kicked due to mismatching SteamID

- Fixed a crash to do with env_projected_texture's texture

- Fixed some security issues reported on HackerOne

- Remove unnecessary return value in WorldPickerMouseDisable hook so GM:VGUIMousePressAllowed hook works more reliably for addons (Community Contribution)

- Fixed Lua error with creator tool when trying to spawn NPCs that do not exist on the server (Community Contribution)

- Blocked .vdf and specific .cfg files from being accessible by the Lua file library

- Added one more known Lua backdoor URL to HTTP blacklist

- Increased default value of mem_max_heapsize to 512, and block it from being changed by Lua API

- Block datacachesize convar from being changed by Lua API, to prevent crashes when set to invalid values

- Fixed monitor (and potentially other) materials in Hammer acting strangely when using "Fit" option in texture application tool.

The entire change list can also be found on our website:
https://gmod.facepunch.com/news/may-2025-patch

Edit: For people still experiencing crashes when pressing "Start Game" - delete your bin/ and garrysmod/bin/ folders and verify game cache integrity through Steam. Some 3rd party files/programs that may have been put into the game's folder by the player are causing issues, such as graphics modifications. Updating those files might also work.