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Updated fprintd packages that fix one bug are now available for Red Hat Enterprise Linux 6.
The fprintd packages contain a D-Bus service to access fingerprint readers.
- When the Pluggable Authentication Module (PAM) configuration includes the pam_fprintd module, PAM uses the glib2 functions where the dlclose() function is executed to unload the glib2 libraries. However, this method is not designed for multi-threaded applications. When a PAM operation was made, Directory Server on Red Hat Enterprise Linux 6 terminated unexpectedly during the shutdown phase because it attempted to unload the glib2 destructor, which had been previously unloaded by the fprintd service. This update applies a patch to fix this bug so that fprintd no longer unloads glib2 when pam_fprintd closes. As a result, the glib2 libraries are unloaded when Directory Server is closed and therefore the server shuts down gracefully.
Users of fprintd are advised to upgrade to these updated packages, which fix this bug.