[Pkg-gnutls-maint] Bug#478191: Bug#478191: Acknowledgement (/usr/bin/gnutls-cli: Fatal error: Internal error in memory allocation.)

[Simon Josefsson]

Marc Haber <mh+debian-bugs at zugschlus.de> writes:

> On Mon, Apr 28, 2008 at 09:26:19AM +0200, Marc Haber wrote:
>> I now see the same behavior (gnutls-cli -s -p 25 localhost crashing
>> during TLS handshake) with one of my own hosts, running a current
>> Debian sid. Unfortunately, this does not seem to be reproducible,
>> since a freshly installed Debian sid in a virtual machine does not
>> exhibit this behavior.
>
> Valgrind output attached.
...
> *** Starting TLS handshake
> *** Fatal error: Internal error in memory allocation.
> *** Handshake has failed
> ==4534==
> ==4534== Invalid free() / delete / delete[]
> ==4534==    at 0x402265C: free (vg_replace_malloc.c:323)
> ==4534==    by 0x804D684: (within /mnt/usr/usr/bin/gnutls-cli)
> ==4534==    by 0x804EA4E: (within /mnt/usr/usr/bin/gnutls-cli)
> ==4534==    by 0x414444F: (below main) (in /lib/libc-2.7.so)
> ==4534==  Address 0x430ce18 is 0 bytes inside a block of size 10 free'd
> ==4534==    at 0x402265C: free (vg_replace_malloc.c:323)
> ==4534==    by 0x804D684: (within /mnt/usr/usr/bin/gnutls-cli)
> ==4534==    by 0x804EA43: (within /mnt/usr/usr/bin/gnutls-cli)
> ==4534==    by 0x414444F: (below main) (in /lib/libc-2.7.so)

There isn't much to go on here, could you put --memcheck:num-callers=50
in your ~/.valgrindrc?

Does the server by any chance have a very large set of known CAs?  Could
you run gnutls-cli with -d 4711 or something and post the output too?
If the packets are very large, this may be the case.

Is it possible to test against this host remotely?

/Simon