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(svn r18978) -Fix [FS#3584](r14753): possible invalid memory access when merging companies

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smatz 2010-02-01 00:10:52 +00:00
parent 68fc39ea1d
commit d155794605
1 changed files with 4 additions and 4 deletions
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8
src/vehicle.cpp
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@ -1209,10 +1209,10 @@ FreeUnitIDGenerator::FreeUnitIDGenerator(VehicleType type, CompanyID owner) : ca
if (this->maxid == 0) return;
this->maxid++; // so there is space for last item (with v->unitnumber == maxid)
this->maxid++; // this one will always be free (well, it will fail when there are 65535 units, so this overflows)
this->cache = CallocT<bool>(this->maxid);
/* Reserving 'maxid + 2' because we need:
* - space for the last item (with v->unitnumber == maxid)
* - one free slot working as loop terminator in FreeUnitIDGenerator::NextID() */
this->cache = CallocT<bool>(this->maxid + 2);
/* Fill the cache */
FOR_ALL_VEHICLES(v) {