[Bug nscd/16365] New: nscd goes into infinite loop when netgroup is empty

[siddhesh at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=16365

            Bug ID: 16365
           Summary: nscd goes into infinite loop when netgroup is empty
           Product: glibc
           Version: 2.18
            Status: NEW
          Severity: normal
          Priority: P2
         Component: nscd
          Assignee: siddhesh at redhat dot com
          Reporter: siddhesh at redhat dot com
                CC: drepper.fsp at gmail dot com

The thread service a netgroup request for an empty group goes into an infinite
loop.

How Reproducible:

Always

Steps to Reproduce:

1. Add the following to /etc/netgroup

foonet

2. Query it:

getent netgroup foonet

Actual result:

- The query times out and then returns the result
- `top` shows nscd using 100% cpu
- Stepping through gdb shows that the servicing thread is stuck in an infinite
loop

Patch coming up.

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