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Initialize pointer in dragger

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How did this not blow up all day long for years?!

Found by UBSAN:

/home/teeworlds/src/master/src/game/server/entities/dragger.cpp:32:29: runtime error: member call on address 0x0000013319b8 which does not point to an object of type 'CCharacter'
0x0000013319b8: note: object has invalid vptr
 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
              ^~~~~~~~~~~~~~~~~~~~~~~
              invalid vptr
    #0 0x5501de in CDragger::Move() /home/teeworlds/src/master/src/game/server/entities/dragger.cpp:32:29
    #1 0x5522c2 in CDragger::Tick() /home/teeworlds/src/master/src/game/server/entities/dragger.cpp:153:3
    #2 0x5eb11e in CGameWorld::Tick() /home/teeworlds/src/master/src/game/server/gameworld.cpp:261:11
    #3 0x58d660 in CGameContext::OnTick() /home/teeworlds/src/master/src/game/server/gamecontext.cpp:751:10
    #4 0x4afefe in CServer::Run() /home/teeworlds/src/master/src/engine/server/server.cpp:2558:19
    #5 0x4c26fd in main /home/teeworlds/src/master/src/engine/server/server.cpp:3551:21
    #6 0x7f2c8cc9309a in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2409a)
    #7 0x451509 in _start (/home/teeworlds/servers/DDNet-Server-ubsan+0x451509)
This commit is contained in:
def 2020-11-04 23:06:44 +01:00
parent e8ba9427b5
commit 5a9d93f160
1 changed files with 1 additions and 0 deletions
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src/game/server/entities/dragger.cpp
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@ -12,6 +12,7 @@ CDragger::CDragger(CGameWorld *pGameWorld, vec2 Pos, float Strength, bool NW,
int CaughtTeam, int Layer, int Number) :
CEntity(pGameWorld, CGameWorld::ENTTYPE_LASER)
{
m_Target = 0;
m_Layer = Layer;
m_Number = Number;
m_Pos = Pos;