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fix(wob): cap material/doodad path lengths + portal vertex count

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Three more per-record sanity bounds that the per-group sweep didn't
cover:
  - material.texturePath length cap (1KB) — was unbounded
  - doodad.modelPath length cap (1KB) — was unbounded
  - portal.vertexCount cap (4096) — real portals are 4-12 verts;
    >4K is corrupt and would OOM the resize
This commit is contained in:
Kelsi 2026-05-06 05:52:58 -07:00
parent 93edf1bd55
commit c0c1be1c9e
1 changed files with 7 additions and 0 deletions
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7
src/pipeline/wowee_building.cpp
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@ -112,6 +112,7 @@ WoweeBuilding WoweeBuildingLoader::load(const std::string& basePath) {
WoweeBuilding::Material mat;
uint16_t pl;
f.read(reinterpret_cast<char*>(&pl), 2);
if (pl > 1024) pl = 0;
mat.texturePath.resize(pl);
f.read(mat.texturePath.data(), pl);
f.read(reinterpret_cast<char*>(&mat.flags), 4);
@ -130,6 +131,11 @@ WoweeBuilding WoweeBuildingLoader::load(const std::string& basePath) {
f.read(reinterpret_cast<char*>(&portal.groupB), 4);
uint32_t pvCount;
f.read(reinterpret_cast<char*>(&pvCount), 4);
// Real portals are 4-12 vertices; >4096 is corrupt.
if (pvCount > 4096) {
LOG_ERROR("WOB portal ", pi, " vertex count rejected (", pvCount, "): ", basePath);
return WoweeBuilding{};
}
portal.vertices.resize(pvCount);
f.read(reinterpret_cast<char*>(portal.vertices.data()), pvCount * 12);
bld.portals.push_back(portal);
@ -139,6 +145,7 @@ WoweeBuilding WoweeBuildingLoader::load(const std::string& basePath) {
WoweeBuilding::DoodadPlacement dp;
uint16_t pl;
f.read(reinterpret_cast<char*>(&pl), 2);
if (pl > 1024) pl = 0;
dp.modelPath.resize(pl);
f.read(dp.modelPath.data(), pl);
f.read(reinterpret_cast<char*>(&dp.position), 12);