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authorfrosch <frosch@openttd.org>2021-01-10 15:10:03 +0100
committerfrosch <github@elsenhans.name>2021-01-10 21:24:38 +0100
commit0078554d6a9df92ce25e07706c4e51143151b2c8 (patch)
treebf8daae6d1a6ad8d3b4944c308852f85adcc7264 /src/newgrf_cargo.cpp
parent63288f80f3970905bc9b18e0961eec3da5be7ee2 (diff)
downloadopenttd-0078554d6a9df92ce25e07706c4e51143151b2c8.tar.xz
Fix: GetCargoTranslation could return out-of-bounds index for old-style NewGRF using cargo-slots.
Diffstat (limited to 'src/newgrf_cargo.cpp')
-rw-r--r--src/newgrf_cargo.cpp5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/newgrf_cargo.cpp b/src/newgrf_cargo.cpp
index 22c7120d8..c2859b71e 100644
--- a/src/newgrf_cargo.cpp
+++ b/src/newgrf_cargo.cpp
@@ -91,7 +91,10 @@ uint16 GetCargoCallback(CallbackID callback, uint32 param1, uint32 param2, const
CargoID GetCargoTranslation(uint8 cargo, const GRFFile *grffile, bool usebit)
{
/* Pre-version 7 uses the 'climate dependent' ID in callbacks and properties, i.e. cargo is the cargo ID */
- if (grffile->grf_version < 7 && !usebit) return cargo;
+ if (grffile->grf_version < 7 && !usebit) {
+ if (cargo >= CargoSpec::GetArraySize() || !CargoSpec::Get(cargo)->IsValid()) return CT_INVALID;
+ return cargo;
+ }
/* Other cases use (possibly translated) cargobits */