Bugs item #2152270, was opened at 2008-10-07 17:01
Message generated for change (Comment added) made by vmpdemo
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Category: libcurl
Group: crash
Status: Open
Resolution: Fixed
Priority: 5
Private: No
Submitted By: vmpdemo (vmpdemo)
Assigned to: Daniel Stenberg (bagder)
Summary: CURLINFO_REDIRECT_URL leaks memory and is incorrect

Initial Comment:
CURLINFO_REDIRECT_URL leaks memory and is incorrect after the first transfer.

The first transfer is seemingly correct.

Any subsequent transfer with a redirect leaks memory, eventually crashing the process potentially.

Any subsequent transfer WITHOUT a redirect causes the most recent redirect that DID occur on some previous transfer to still be reported.

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>Comment By: vmpdemo (vmpdemo)
Date: 2008-10-09 18:32

Message:
thanks - John Wilkinson

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Comment By: Daniel Stenberg (bagder)
Date: 2008-10-08 16:57

Message:
Thanks both of you!

I committed this patch and I enabled the test cases.

vmpdemo, if you tell me your full name I'll give you proper credit for
your work in th changelog!

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Comment By: Dan Fandrich (dfandrich)
Date: 2008-10-07 22:31

Message:
I've checked in and disabled test cases 1080 and 1081 that reproduce these
two issues.

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Comment By: vmpdemo (vmpdemo)
Date: 2008-10-07 17:57

Message:
For the leak just keep accessing in a loop a url which performs a redirect,
while CURLOPT_FOLLOWLOCATION is set to 0. The larger the redirect url, the
faster the leak...

For the incorrect behavior access a url which performs a redirect, while
CURLOPT_FOLLOWLOCATION is set to 0. Then access a url which does not
perform a redirect (CURLOPT_FOLLOWLOCATION no longer matters.) After the
second transfer CURLINFO_REDIRECT_URL will still be set to the value of the
first.

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Comment By: Daniel Stenberg (bagder)
Date: 2008-10-07 17:44

Message:
do you happen to have a recipe on how to make the bug appear?

I'd like to add a test case for this scenario together with your fix!

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You can respond by visiting:
https://sourceforge.net/tracker/?func=detail&atid=100976&aid=2152270&group_id=976
Received on 2008-10-10