On Wed, Jun 07, 2006 at 07:40:44PM -0400, Matthew L Daniel wrote:
> If this needs to go to the dev list, let me know.
> 
> I am experiencing a SIGSEGV in BN_BLINDING_free because mt_blinding
> appears to be 0x11 instead of a pointer to some memory.

We had an identical issue reported here:

https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=193633

which is somehow caused by the use of Zimbra binaries.

joe

> 
>   Thanks,
>   -- /v\atthew
> 
> 1 = 
> http://groups.google.com/group/mailing.openssl.users/msg/6dfa523d76e40fd7?dmode=source
> 
> === begin stack trace ===
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread -1216694592 (LWP 3819)]
> BN_BLINDING_free (r=0x11) at bn_blind.c:167
> 167             if (r->A  != NULL) BN_free(r->A );
> (gdb) bt
> #0  BN_BLINDING_free (r=0x11) at bn_blind.c:167
> #1  0xb78fc730 in RSA_free (r=0x80168d20) at rsa_lib.c:236
> #2  0xb791c412 in EVP_PKEY_free_it (x=Variable "x" is not available.
> ) at p_lib.c:479
> #3  0xb791c47e in EVP_PKEY_free (x=0x80168d00) at p_lib.c:466
> #4  0xb7927553 in pubkey_cb (operation=3, pval=0x80163eb0, it=0xb79889c8)
>     at x_pubkey.c:76
> #5  0xb792dde2 in asn1_item_combine_free (pval=0x80163eb0, it=0xb79889c8,
>     combine=0) at tasn_fre.c:175
> #6  0xb792e002 in ASN1_template_free (pval=0x80163eb0, tt=0xb798b338)
>     at tasn_fre.c:202
> #7  0xb792df15 in asn1_item_combine_free (pval=0x80166f40, it=0xb7988b7c,
>     combine=0) at tasn_fre.c:172
> #8  0xb792e002 in ASN1_template_free (pval=0x80166f40, tt=0xb798b3a0)
>     at tasn_fre.c:202
> #9  0xb792df15 in asn1_item_combine_free (pval=0xbfd25710, it=0xb7988b98,
>     combine=0) at tasn_fre.c:172
> #10 0xb792e02e in ASN1_item_free (val=0x80166f40, it=0xb7988b98)
>     at tasn_fre.c:71
> #11 0xb7928f39 in X509_free (a=0x80166f40) at x_x509.c:128
> #12 0xb70019fa in ssl_init_ModuleKill (data=0x80052ca0)
>     at /usr/src/redhat/BUILD/httpd-2.2.2/modules/ssl/ssl_engine_init.c:1233
> #13 0xb7cc052b in run_cleanups (cref=0x8004d330)
>     at memory/unix/apr_pools.c:2034
> #14 0xb7cc0db0 in apr_pool_clear (pool=0x8004d320)
>     at memory/unix/apr_pools.c:689
> #15 0x800107fe in main (argc=-2147175656, argv=0x0)
>     at /usr/src/redhat/BUILD/httpd-2.2.2/server/main.c:667
> (gdb) up
> #1  0xb78fc730 in RSA_free (r=0x80168d20) at rsa_lib.c:236
> 236             if (r->mt_blinding != NULL) BN_BLINDING_free(r->mt_blinding);
> (gdb) print r->mt_blinding
> $1 = (BN_BLINDING *) 0x11
> 
> === end stack trace ===
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