Package: opendkim
Version: 2.11.0~beta2-4
Severity: important

Dear Maintainer,

OpenDKIM fails to sign mail messages on S/390 system.
It fails with following message:
dkim_eom(): resource unavailable: unable to allocate -858993455 byte(s)

I added some debug code and found following malloc to fail, because
siglen is 0:
libopendkim/dkim.c:

4028         /* base64-encode the signature */
4029         dkim->dkim_b64siglen = siglen * 3 + 5;
4030         dkim->dkim_b64siglen += (dkim->dkim_b64siglen / 60);
4031         dkim->dkim_b64sig = DKIM_MALLOC(dkim,
dkim->dkim_b64siglen);
4032         if (dkim->dkim_b64sig == NULL)
4033         {
4034                 dkim_error(dkim, "unable to allocate %d byte(s), sig     
len is %d",
4035                            dkim->dkim_b64siglen, siglen);

When I configure the opendkim package with --with-gnutls everything
works fine. It seems the internal signing mechanism is broken on S/390.

best regards
 Waldemar Brodkorb


-- System Information:
Debian Release: 11.3
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: s390x

Kernel: Linux 5.10.0-14-s390x (SMP w/1 CPU thread)
Kernel taint flags: TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), 
LANGUAGE=en_US:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages opendkim depends on:
ii  adduser              3.118
ii  dns-root-data        2021011101
ii  init-system-helpers  1.60
ii  libbsd0              0.11.3-1
ii  libc6                2.31-13+deb11u3
ii  libdb5.3             5.3.28+dfsg1-0.8
ii  libgnutls30          3.7.1-5
ii  libldap-2.4-2        2.4.57+dfsg-3+deb11u1
ii  liblua5.1-0          5.1.5-8.1+b3
ii  libmemcached11       1.0.18-4.2
ii  libmilter1.0.1       8.15.2-22
ii  libopendbx1          1.4.6-15
ii  libopendkim11        2.11.0~beta2-4
ii  librbl1              2.11.0~beta2-4
ii  libunbound8          1.13.1-1
ii  libvbr2              2.11.0~beta2-4
ii  lsb-base             11.1.0

Versions of packages opendkim recommends:
ii  opendkim-tools  2.11.0~beta2-4

opendkim suggests no packages.

-- Configuration Files:
/etc/opendkim.conf changed [not included]

-- no debconf information

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