Bug 694798
| Summary: | Multiple dhclients can steal each others' DHCPOFFERs | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Jiri Popelka <jpopelka> |
| Component: | dhcp | Assignee: | Jiri Popelka <jpopelka> |
| Status: | CLOSED ERRATA | QA Contact: | Release Test Team <release-test-team-automation> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 6.1 | CC: | atodorov, mganisin, msvoboda, ovasik, simone |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | dhcp-4.1.1-20.P1.el6 | Doc Type: | Bug Fix |
| Doc Text: |
Previously, when multiple DHCP clients were launched at the same time to handle multiple virtual interfaces on the same network interface card (NIC), the clients used the same seed to choose when to renew their leases. Consequently, these virtual interfaces for some clients could have been removed over time. With this update, the dhclient utility uses the Process Identifier (PID) for seeding the random number generator, which fixes the bug.
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Story Points: | --- |
| Clone Of: | 623953 | Environment: | |
| Last Closed: | 2011-12-06 12:00:39 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 623953 | ||
| Bug Blocks: | |||
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2011-1597.html |
Technical note added. If any revisions are required, please edit the "Technical Notes" field accordingly. All revisions will be proofread by the Engineering Content Services team. New Contents: Previously, when multiple DHCP clients were launched at the same time to handle multiple virtual interfaces on the same network interface card (NIC), the clients used the same seed to choose when to renew their leases. Consequently, these virtual interfaces for some clients could have been removed over time. With this update, the dhclient utility uses the Process Identifier (PID) for seeding the random number generator, which fixes the bug.