Segfault of in.telnetd ( Requesting Core Dump analysis ).
Issue
- A segfault has been seen recently in in.telnetd on this system and 2 other systems with rhel 6.2.
Mar 17 17:03:33 localhost kernel: in.telnetd[18409]: segfault at 0 ip 00007f6d08305ec1 sp 00007ffff6b8fdb0 error 4 in in.telnetd[7f6d08300000+b000]
Mar 17 17:03:33 localhost abrt[18410]: saved core dump of pid 18409 (/usr/sbin/in.telnetd) to /var/spool/abrt/ccpp-2014-03-17-17:03:33-18409.new/coredump (397312 bytes)
[question]
Q1) why did telnet service receive signal=11 and why was it segfault?
Q2) Analyze coredump.
Q3) is it related to isc_ec_type(3rd party user process), which may cause telnet segfault?
Environment
- Red Hat Enterprise Linux 6.2
- kernel-2.6.32-220.13.1.el6.x86_64
- telnet-server-0.17-47.el6.x86_64
- xinetd-2.3.14-33.el6.x86_64
- glib2-2.22.5-6.el6.x86_64
- glibc-2.12-1.47.el6.x86_64
Subscriber exclusive content
A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.
Close
Welcome! Check out the Getting Started with Red Hat page for quick tours and guides for common tasks.