Bug 91413 - dhcp daemon memory leak
dhcp daemon memory leak
Product: Red Hat Linux
Classification: Retired
Component: dhcp (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Daniel Walsh
Depends On:
  Show dependency treegraph
Reported: 2003-05-22 09:35 EDT by Steve Grubb
Modified: 2007-04-18 12:53 EDT (History)
0 users

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2003-06-16 15:38:52 EDT
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Regression: ---
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Documentation: ---
Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
Patch to fix memory leak (422 bytes, patch)
2003-05-22 09:36 EDT, Steve Grubb
no flags Details | Diff

  None (edit)
Description Steve Grubb 2003-05-22 09:35:41 EDT
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2.1) Gecko/20030225

Description of problem:
The current version of the daemon leaks memory in the parser. I will attach a
patch that fixes the memory leak.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
/etc/rc.d/init.d/dhcpd stop

valgrind --leak-check=yes --leak-resolution=high --num-callers=8 --logfile-fd=19
/usr/sbin/dhcpd -cf /usr/share/doc/dhcp-3.0pl1/dhcpd.conf.sample 19>out

/etc/rc.d/init.d/dhcpd stop

vi out

Actual Results:  ==1805== 18 bytes in 1 blocks are definitely lost in loss
record 23 of 143
==1805==    at 0x400284E6: malloc (vg_replace_malloc.c:153)
==1805==    by 0x809B526: dmalloc (alloc.c:71)
==1805==    by 0x806F74C: parse_host_name (parse.c:242)
==1805==    by 0x806F8C4: parse_ip_addr_or_hostname (parse.c:284)
==1805==    by 0x8077934: parse_option_token (parse.c:4372)
==1805==    by 0x80773F0: parse_option_statement (parse.c:4200)
==1805==    by 0x8071D79: parse_executable_statement (parse.c:2002)
==1805==    by 0x8055C3B: parse_statement (confpars.c:669)

Expected Results:  No leak.

Additional info:

The leak is config file dependant.
Comment 1 Steve Grubb 2003-05-22 09:36:35 EDT
Created attachment 91890 [details]
Patch to fix memory leak
Comment 2 Daniel Walsh 2003-06-16 15:38:52 EDT
Fixed in dhcp-3.0pl2-6.2.src.rpm



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