Memory leaks are observed for libgnutls in multi-thread mode

Nikos Mavrogiannopoulos nmav at gnutls.org
Fri Oct 23 09:38:20 CEST 2009


Thanks. However in order to reproduce it I need to know to which
server you connect to and which options does this server use?

2009/10/23 tangtong <tang__tong at hotmail.com>:
> Hi,Nikos
>
> The gnutls-cli built by me will core when I enable TLS1.2. I think the code
> base I use is a little diffent from what you are using. The following is my
> steps to setup the build enviorment:
> 1)Download a gnutls releaes package 2.8.3 and decompress it;
> 2)Download 2.9.4 snap shot and uncompress it to the directory created in the
> step 1);
> 3)Run patch you provide.
>
> Seems only snapshot of 2.9.4 is not the whole build env, that's why i
> decompress it to a build enviorment of 2.8.3.
>
> Regards
> Tony
>
>
>
>
>
>
>
>
>> Date: Thu, 22 Oct 2009 19:31:02 +0300
>> From: nmav at gnutls.org
>> To: tang__tong at hotmail.com
>> CC: simon at josefsson.org; help-gnutls at gnu.org
>> Subject: Re: Memory leaks are observed for libgnutls in multi-thread mode
>>
>> tangtong wrote:
>> > Hi,Nikos
>>
>> > 2)The patch doesn't support
>> > "NONE:+VERS-TLS1.2:+AES-256-CBC:+RSA:+SHA256:+COMP-NULL", I t! hink your
>> > patch disable the tls1.2 support, it will core with the following dump
>> > info:
>> > fe9a2bb8 _gcry_md_copy (ffbff33c, 0, 0, febc6ed0, 14f8, fed3805c) + 4
>> > feca8dfc _gnutls_hash_copy (ffbff338, 365c4, 0, 0, 0, 0) + 80
>> > fec9e0fc _gnutls_finished (36180, 2, ffbff440, 1, 6, 0) + 84
>> > fec9edc0 _gnutls_send_handshake_final (0, 0, 0, e, e, 4) + 128
>> > feca2548 _gnutls_handshake_common (36180, 0, 10, 4, ffffffe0, ffbff551)
>> > + 30
>> > feca382c gnutls_handshake (0, 4, 32fc8, 8e8, 17ac, ffbff5c4) + 60
>> > 000119bc main (1, ffbffa54, ffbffa5c, 22508, 0, 0) + 118
>> > 000112c8 _start (0, 0, 0, 0, 0, 0) + 5c
>>
>> Can you send me information on how I can reproduce this issue? I can use
>> ./gnutls-cli tls.secg.org --priority
>> "NONE:+VERS-TLS1.2:+AES-128-CBC:+RSA:+DHE-DSS:+SHA256:+COMP-NULL" to
>> connect using TLS1.2 without any issues.>
>> regards,
>> Nikos
>
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