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Re: Server crash dump [message #481808 is a reply to message #481678] |
Sat, 08 June 2013 12:52 |
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Jerad2142
Messages: 3809 Registered: July 2006 Location: USA
Karma:
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General (3 Stars) |
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iRANian wrote on Thu, 06 June 2013 12:03 | Crashed in MDB_SSGM_KeyHook_Clone::Destroyed(GameObject *obj) while Calling ::RemoveHook, which I added to the plugin by copying it from the SSGM 2.0.2 source:
void MDB_SSGM_KeyHook_Clone::Destroyed(GameObject *obj) {
if (is_keyhook_set == 1337) {
RemoveHook();
}
}
void MDB_SSGM_KeyHook_Clone::RemoveHook() {
if (hookid != 0 && RemoveKeyHook != 0) {
RemoveKeyHook(hookid);
hookid = 0;
if (k != 0) {
delete[] k->key;
delete k;
k = 0;
}
}
}
70: void MDB_SSGM_KeyHook_Clone::Destroyed(GameObject *obj) {
730F12A0 56 push esi
730F12A1 8B F1 mov esi,ecx
71: if (is_keyhook_set == 1337) {
730F12A3 81 7E 24 39 05 00 00 cmp dword ptr [esi+24h],539h
730F12AA 75 45 jne MDB_SSGM_KeyHook_Clone::Detach+51h (730F12F1h)
72: RemoveHook();
730F12AC 8B 46 20 mov eax,dword ptr [esi+20h]
730F12AF 85 C0 test eax,eax
730F12B1 74 3E je MDB_SSGM_KeyHook_Clone::Detach+51h (730F12F1h)
730F12B3 8B 0D F0 20 0F 73 mov ecx,dword ptr [__imp_RemoveKeyHook (730F20F0h)]
730F12B9 8B 09 mov ecx,dword ptr [ecx]
730F12BB 85 C9 test ecx,ecx
730F12BD 74 32 je MDB_SSGM_KeyHook_Clone::Detach+51h (730F12F1h)
730F12BF 50 push eax
730F12C0 FF D1 call ecx
730F12C2 8B 46 1C mov eax,dword ptr [esi+1Ch]
730F12C5 83 C4 04 add esp,4
730F12C8 C7 46 20 00 00 00 00 mov dword ptr [esi+20h],0
730F12CF 85 C0 test eax,eax
730F12D1 74 1E je MDB_SSGM_KeyHook_Clone::Detach+51h (730F12F1h)
730F12D3 8B 50 04 mov edx,dword ptr [eax+4] // CRASHES HERE
730F12D6 52 push edx
730F12D7 FF 15 80 20 0F 73 call dword ptr [__imp_operator delete[] (730F2080h)]
730F12DD 8B 46 1C mov eax,dword ptr [esi+1Ch]
730F12E0 50 push eax
730F12E1 FF 15 88 20 0F 73 call dword ptr [__imp_operator delete (730F2088h)]
730F12E7 83 C4 08 add esp,8
730F12EA C7 46 1C 00 00 00 00 mov dword ptr [esi+1Ch],0
730F12F1 5E pop esi
73: }
74: }
Registers:
EDX 730F22F0
EAX 0000001F
EBP 0018FAF0
AL 1F
The value of the 'k' pointer variable (which is of type KeyHookStruct )somehow was set to 0x1F instead of a valid pointer address, then the code tries to access memory address variable 'k' + 4 (0x1f + 4) which is invalid and the server crashed.
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Perhaps it was destroyed before the create function was completed thus k was not yet set to 0. Easiest way to protect against this is to attach a dummy script when the create function is done. Then check to see if this dummy script is attached before doing any point related operations on delete, custom, or damaged events (or anything other events that could potentially get called before create is done).
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Server crash dump
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Re: Server crash dump
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Re: Server crash dump
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Re: Server crash dump
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Re: Server crash dump
By: Ethenal on Sat, 01 June 2013 16:51
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Re: Server crash dump
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Re: Server crash dump
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Re: Server crash dump
By: ehhh on Sun, 02 June 2013 07:40
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Re: Server crash dump
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Re: Server crash dump
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Re: Server crash dump
By: Ethenal on Wed, 05 June 2013 09:09
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Re: Server crash dump
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Re: Server crash dump
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Re: Server crash dump
By: Xpert on Thu, 06 June 2013 01:21
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Re: Server crash dump
By: iRANian on Thu, 06 June 2013 11:03
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Re: Server crash dump
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Re: Server crash dump
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Re: Server crash dump
By: raven on Thu, 06 June 2013 13:39
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Re: Server crash dump
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Re: Server crash dump
By: iRANian on Fri, 07 June 2013 00:48
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Re: Server crash dump
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Re: Server crash dump
By: iRANian on Fri, 07 June 2013 12:55
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Re: Server crash dump
By: raven on Fri, 07 June 2013 16:56
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Re: Server crash dump
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Re: Server crash dump
By: Xpert on Fri, 07 June 2013 19:04
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Re: Server crash dump
By: iRANian on Sat, 08 June 2013 03:27
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Re: Server crash dump
By: iRANian on Sat, 08 June 2013 13:34
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Re: Server crash dump
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Re: Server crash dump
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Re: Server crash dump
By: iRANian on Sun, 09 June 2013 13:34
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Re: Server crash dump
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Re: Server crash dump
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Re: Server crash dump
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Re: Server crash dump
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Re: Server crash dump
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Re: Server crash dump
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Re: Server crash dump
By: Ethenal on Wed, 19 June 2013 23:21
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Re: Server crash dump
By: iRANian on Thu, 20 June 2013 00:22
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Re: Server crash dump
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Re: Server crash dump
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Re: Server crash dump
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Re: Server crash dump
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Re: Server crash dump
By: raven on Sun, 30 June 2013 18:00
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Re: Server crash dump
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Re: Server crash dump
By: Ethenal on Mon, 01 July 2013 07:39
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Re: Server crash dump
By: Xpert on Mon, 01 July 2013 09:40
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Re: Server crash dump
By: Ethenal on Tue, 25 June 2013 07:58
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Re: Server crash dump
By: iRANian on Wed, 26 June 2013 10:23
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Re: Server crash dump
By: iRANian on Mon, 01 July 2013 00:07
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