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List:       kmail-devel
Subject:    Crash caused by unusual from: field (?)
From:       Eugene Kuznetsov <divx () euro ! ru>
Date:       2001-11-22 4:10:49
[Download RAW message or body]

Hello,

	I use KMail 1.3.1 from KDE 2.2.1, build with Qt 2.3.2. Today I have received 
an e-mail that caused KMail to 'disappear' without any warnings or messages. 
When I tried to launch it again, I discovered that I am no longer able to 
access folder with that email - KMail would immediately crash.
	I played a little with it and discovered that I can enter the folder after 
removing relevant ~/Mail/.xxx.index file. Now it crashes upon exit. Here is 
the output of gdb ( I recompiled kmail with -g option to get it ):

khtml (memory): KHTMLPart::clear() this = 0x8202800
khtml (memory): KHTMLPart::clear(): dereferencing the document
khtml (memory): KHTMLPart::clear(): dereferencing done..
khtml: KHTMLFactory::~KHTMLFactory
kparts: Part::~Part 0x8202800
kparts: deleting widget [KHTMLView pointer (0x8208df8) to widget khtml, 
geometry=841x335+0+0] khtml
kmail: trash clean-up done.

Program received signal SIGSEGV, Segmentation fault.
0x811957d in KMMsgBase::syncIndexString (this=0x81e8788) at kmmsgbase.cpp:739
739       if(!dirty())
(gdb) bt
#0  0x811957d in KMMsgBase::syncIndexString (this=0x81e8788)
    at kmmsgbase.cpp:739
#1  0x80db42d in KMFolder::close (this=0x81e6f68, aForced=true)
    at kmfolder.cpp:318
#2  0x813666f in KMKernel::cleanup (this=0xbffff6b8) at kmkernel.cpp:634
#3  0x8138511 in main (argc=1, argv=0xbffff8a4) at main.cpp:263
#4  0x410dd2e7 in __libc_start_main (main=0x8137ea4 <main>, argc=1,
    argv=0xbffff8a4, init=0x8068f58 <_init>, fini=0x816de20 <_fini>,
    rtld_fini=0x40009f00 <_dl_fini>, stack_end=0xbffff89c)
    at ../sysdeps/generic/libc-start.c:90
(gdb) f 1
#1  0x80db42d in KMFolder::close (this=0x81e6f68, aForced=true)
    at kmfolder.cpp:318
318                   dirty = !mMsgList[i]->syncIndexString();
(gdb) f 0
#0  0x811957d in KMMsgBase::syncIndexString (this=0x81e8788)
    at kmmsgbase.cpp:739
739       if(!dirty())
(gdb) x/40xc this
0x81e8788:      0 '\000'        111 'o' 0 '\000'        107 'k' 0 '\000'      
 64 '@'   0 '\000'        97 'a'
0x81e8790:      0 '\000'        117 'u' 0 '\000'        46 '.'  0 '\000'      
 114 'r'  0 '\000'        117 'u'
0x81e8798:      0 '\000'        62 '>'  0 '\000'        44 ','  0 '\000'      
 60 '<'   0 '\000'        115 's'
0x81e87a0:      0 '\000'        99 'c'  0 '\000'        97 'a'  0 '\000'      
 114 'r'  0 '\000'        97 'a'
0x81e87a8:      0 '\000'        98 'b'  0 '\000'        64 '@'  0 '\000'      
 99 'c'   0 '\000'        104 'h'

You can see that 'this' object is overwritten by something that looks like an 
email header. I took a look at the mailbox, and discovered that I've got an 
email with rather unusual To: header:

Message-ID: <006e01c17231$c6f20bc0$0200a8c0@EC>                               
From: "3" <sefrva@rambler.ru>                                                 
To: <maxes@chat.ru>,                                                          
 <guestbook@chat.ru>,                                                         
 <vtaits@chat.ru>,                                                            
 <vasja@chat.ru>,                                                             
 <mybox@chat.ru>,                                                             
 <ivan.ivanov@chat.ru>,                                                       
 <super_pupkin@chat.ru>,                                                      
 <super_pupkin@mail.ru>,                                                      
 <abuse@chat.ru>,                                                             
 <kaply_rosi@chat.ru>,                                                        
 <grek@nm.ru>,                                                                
 <ovesh@chat.ru>,                                                             
 <mikie@nettaxi.com>,                                                         
 <alia_san@chat.ru>,                                                          
 <potok@au.ru>,                                                               
 <scarab@chat.ru>,                                                            

etc., total 901 addresses.
KMail seems to crash shortly after it writes info about this email into 
.index file.

Is it a known issue? If not,  I can provide any additional information 
needed to fix this bug.
	
-- 
Best regards,
Eugene
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