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» SmaugMuds.org » Bugfix Lists » SWFOTE FUSS Bugfix List » [Bug] plantbug skill can lead...
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[Bug] plantbug skill can lead to memory corruption
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Post is unread #1 Oct 29, 2006, 1:40 pm
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Samson
Black Hand
GroupAdministrators
Posts3,639
JoinedJan 1, 2002

Bug: plantbug skill can lead to memory corruption
Danger: Medium - Specific circumstances required to trigger it.
Found by: Phoneix Dracul
Fixed by: Keberus

---

hunter.c, do_plantbug

Locate:
      CREATE( pbug, BUG_DATA, 1 );
      pbug->name = ch->name;
      LINK( pbug, victim->first_bug, victim->last_bug, next_in_bug, prev_in_bug );


Change to:
      CREATE( pbug, BUG_DATA, 1 );
      pbug->name = QUICKLINK( ch->name );
      LINK( pbug, victim->first_bug, victim->last_bug, next_in_bug, prev_in_bug );


By setting the pbug->name field directly to the player name who did it, the code leaves open the possibility that the value will go NULL when the player leaves the game. Once this happens then whatever means are necessary to discover the information will trigger a crash, or possibly just point to garbage data.
       
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