Message "error while loading shared libraries: /lib64/libc.so.6: ELF file OS ABI invalid" appearing while patching.

Issue

• After invoking a program, the following error is printed on the screen:

error while loading shared libraries: <library_path>: ELF file OS ABI invalid

• What means "ELF file OS ABI invalid"?
• While applying the latest patches, why the messages are printed on screen?

getent: error while loading shared libraries: /lib64/libc.so.6: ELF file OS ABI invalid
warning: /etc/pam.d/system-auth created as /etc/pam.d/system-auth.rpmnew
warning: /etc/security/access.conf created as /etc/security/access.conf.rpmnew
warning: /etc/security/limits.conf created as /etc/security/limits.conf.rpmnew
/bin/sh: error while loading shared libraries: /lib64/libc.so.6: ELF file OS ABI invalid
Error in PREIN scriptlet in rpm package udev-095-14.29.el5.x86_64
error: %pre(udev-095-14.29.el5.x86_64) scriptlet failed, exit status 127
error:   install: %pre scriptlet failed (2), skipping udev-095-14.29.el5
/bin/sh: error while loading shared libraries: /lib64/libc.so.6: ELF file OS ABI invalid
Error in PREIN scriptlet in rpm package initscripts-8.45.42-1.el5_8.1.x86_64
error: %pre(initscripts-8.45.42-1.el5_8.1.x86_64) scriptlet failed, exit status 127
error:   install: %pre scriptlet failed (2), skipping initscripts-8.45.42-1.el5_8.1
/bin/sh: error while loading shared libraries: /lib64/libc.so.6: ELF file OS ABI invalid
Error in PREIN scriptlet in rpm package hal-0.5.8.1-64.el5.x86_64
error: %pre(hal-0.5.8.1-64.el5.x86_64) scriptlet failed, exit status 127
error:   install: %pre scriptlet failed (2), skipping hal-0.5.8.1-64.el5
/bin/sh: error while loading shared libraries: /lib64/libc.so.6: ELF file OS ABI invalid
Error in PREIN scriptlet in rpm package pm-utils-0.99.3-14.el5.x86_64
error: %pre(pm-utils-0.99.3-14.el5.x86_64) scriptlet failed, exit status 127
error:   install: %pre scriptlet failed (2), skipping pm-utils-0.99.3-14.el5