Re: http-push: double free or corruption (!prev): 0x09fedb50

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On Wed, 25 Feb 2009, Felipe Contreras wrote:

I'm trying to push over https and I keep getting a crash. "curl -netrc https://server/repo/HEAD"; seems to work fine.

I'm attaching the output of valgrind and this is the backtrace (not on
the same run):

#6  0x064d5b37 in PR_Free (ptr=0x0) at
../../../mozilla/nsprpub/pr/src/malloc/prmem.c:490
#7  0x00df72f8 in nss_ZRealloc (pointer=0x9fedb58, newSize=4096) at arena.c:1076
#8  0x00de579b in pem_CreateObject (fwInstance=0x8109ba0,
fwSession=0x810bac8, mdToken=0x8109cf8, pTemplate=0xbfffd6e4,
ulAttributeCount=4, pError=0xbfffd608) at pobject.c:1080

[...]

Any ideas?

You didn't mention what libcurl version you use, but clearly this is built to use NSS for the SSL layer so I guess you're using a Fedora-provided library.

There's already at least one NSS-libcurl-git related bug report[*] for Fedora submitted and I think you'll have a reason to follow that to see if you can help them or they can help you. To me this looks like at least one NSS bug.

In the mean time I suggest you attempt a work-around: build a new libcurl powered by another SSL library such as OpenSSL or GnuTLS. It's just a matter of running libcurl's configure with the proper command line

[*] = https://bugzilla.redhat.com/show_bug.cgi?id=483222

--

 / daniel.haxx.se
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