[Bug 19236] New: division by zero in CreateUrlCacheEntryW in wininet

http://bugs.winehq.org/show_bug.cgi?id=19236

Summary: division by zero in CreateUrlCacheEntryW in wininet
           Product: Wine
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: blocker
          Priority: P2
         Component: wininet
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

the value stored in register eax is being divided by the value stored in
register ecx which is 0.

[Bug 19236] division by zero in CreateUrlCacheEntryW in wininet

http://bugs.winehq.org/show_bug.cgi?id=19236

--- Comment #1 from dillinger417   2009-07-08 10:42:19 ---
Created an attachment (id=22256)
 --> (http://bugs.winehq.org/attachment.cgi?id=22256)
output from winedbg Wow.exe

[Bug 19236] division by zero in CreateUrlCacheEntryW in wininet

http://bugs.winehq.org/show_bug.cgi?id=19236

dillinger417  changed:

What    |Removed                     |Added
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  Attachment #22256|application/octet-stream    |text/text
          mime type|                            |

[Bug 19236] division by zero in CreateUrlCacheEntryW in wininet

http://bugs.winehq.org/show_bug.cgi?id=19236

Nikolay Sivov  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #22256|text/text                   |text/plain
          mime type|                            |

[Bug 19236] division by zero in CreateUrlCacheEntryW in wininet

http://bugs.winehq.org/show_bug.cgi?id=19236

Juan Lang  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|blocker                     |normal

--- Comment #2 from Juan Lang   2009-07-08 10:53:02 ---
Not a blocker: http://bugs.winehq.org/page.cgi?id=fields.html#importance

Please get a backtrace from a version of Wine with debug symbols.

[Bug 19236] division by zero in CreateUrlCacheEntryW in wininet

http://bugs.winehq.org/show_bug.cgi?id=19236

--- Comment #3 from dillinger417   2009-07-08 14:57:28 ---
(In reply to comment #2)
> Not a blocker: http://bugs.winehq.org/page.cgi?id=fields.html#importance
>
> Please get a backtrace from a version of Wine with debug symbols.

I would be happy to, but I'm not sure how to do that exactly. Is there some
further information you could point me to?

[Bug 19236] division by zero in CreateUrlCacheEntryW in wininet

http://bugs.winehq.org/show_bug.cgi?id=19236

--- Comment #4 from Austin English   2009-07-08 15:02:22 ---
(In reply to comment #3)
> (In reply to comment #2)
> > Not a blocker: http://bugs.winehq.org/page.cgi?id=fields.html#importance
> >
> > Please get a backtrace from a version of Wine with debug symbols.
>
> I would be happy to, but I'm not sure how to do that exactly. Is there some
> further information you could point me to?

It should be automatic. If not, try running under winedbg. Also, see
http://wiki.winehq.org/Backtraces

[Bug 19236] division by zero in CreateUrlCacheEntryW in wininet

http://bugs.winehq.org/show_bug.cgi?id=19236

--- Comment #5 from dillinger417   2009-07-08 15:10:33 ---
(In reply to comment #4)
> (In reply to comment #3)
> > (In reply to comment #2)
> > > Not a blocker: http://bugs.winehq.org/page.cgi?id=fields.html#importance
> > >
> > > Please get a backtrace from a version of Wine with debug symbols.
> >
> > I would be happy to, but I'm not sure how to do that exactly. Is there some
> > further information you could point me to?
>
> It should be automatic. If not, try running under winedbg. Also, see
> http://wiki.winehq.org/Backtraces

The backtrace in the attachment isn't sufficient?

[Bug 19236] division by zero in CreateUrlCacheEntryW in wininet

http://bugs.winehq.org/show_bug.cgi?id=19236

--- Comment #6 from Austin English   2009-07-08 15:25:31 ---
(In reply to comment #5)
> The backtrace in the attachment isn't sufficient?

=>0 0x7d8935ee CreateUrlCacheEntryW+0x38e() in wininet (0x0869c7e8)
  1 0x7d880fc9 HTTP_HttpSendRequestW+0x15c9() in wininet (0x0869e9c8)

those should show line numbers for the code.

[Bug 19236] division by zero in CreateUrlCacheEntryW in wininet

http://bugs.winehq.org/show_bug.cgi?id=19236

--- Comment #7 from dillinger417   2009-07-08 15:49:26 ---
(In reply to comment #6)
> (In reply to comment #5)
> > The backtrace in the attachment isn't sufficient?
>
> =>0 0x7d8935ee CreateUrlCacheEntryW+0x38e() in wininet (0x0869c7e8)
>   1 0x7d880fc9 HTTP_HttpSendRequestW+0x15c9() in wininet (0x0869e9c8)
>
> those should show line numbers for the code.
> It should be automatic. If not, try running under winedbg. Also, see
> http://wiki.winehq.org/Backtraces

Please see the attachment 'Output from two terminals'.  I have tried the steps
as indicated in the link.

[Bug 19236] division by zero in CreateUrlCacheEntryW in wininet

http://bugs.winehq.org/show_bug.cgi?id=19236

--- Comment #8 from dillinger417   2009-07-08 15:50:37 ---
Created an attachment (id=22270)
 --> (http://bugs.winehq.org/attachment.cgi?id=22270)
Output from two terminals as described in http://wiki.winehq.org/Backtraces

[Bug 19236] division by zero in CreateUrlCacheEntryW in wininet

http://bugs.winehq.org/show_bug.cgi?id=19236

--- Comment #9 from Austin English   2009-07-08 16:01:44 ---
(In reply to comment #8)
> Created an attachment (id=22270)

--> (http://bugs.winehq.org/attachment.cgi?id=22270) [details]
> Output from two terminals as described in http://wiki.winehq.org/Backtraces

Your copy of wine lacks debugging symbols...you need to either compile it, or
possibly install wine-dev or wine-dbg from your package manager.

[Bug 19236] division by zero in CreateUrlCacheEntryW in wininet

http://bugs.winehq.org/show_bug.cgi?id=19236

dillinger417  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |ABANDONED

--- Comment #10 from dillinger417   2009-07-13 15:38:53 ---
I did go ahead and build wine from source for debugging symbols, but during
that time I was trying some other things, and I fixed the problem by deleting
my ~/.wine folder.  Perhaps wine killed the previous session before a
configuration file used could be fully written to. I would suggest that there
is still a bug, in that there should be a better way to handle the situation
than crashing the app because of an attempted divide by zero.  Perhaps some
sort of default value to use in the case of reading a zero. Or a check to make
sure the configuration file is complete/valid.  This is just guesswork on my
part. I don't know enough about Wine to say. My $.02.

Anyway, even though I saved out my ~/.wine to ~/.wine-bak, and after compiling
restored it, I was unable to reproduce the bug.

Thanks for the help and patience.

[Bug 19236] division by zero in CreateUrlCacheEntryW in wininet

http://bugs.winehq.org/show_bug.cgi?id=19236

Ken Sharp  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|ABANDONED                   |INVALID

--- Comment #11 from Ken Sharp   2009-07-13 16:04:49 ---
Invalid then.

[Bug 19236] division by zero in CreateUrlCacheEntryW in wininet

http://bugs.winehq.org/show_bug.cgi?id=19236

Ken Sharp  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

--- Comment #12 from Ken Sharp   2009-07-13 16:05:13 ---
Closing.