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Bug #4437

closed

dns: high resource usage on long lived dns connections

Added by Jason Ish over 3 years ago. Updated over 3 years ago.

Status:
Closed
Priority:
Normal
Assignee:
Jason Ish
Target version:
7.0.0-beta1
Affected Versions:
6.0.2
Effort:
Difficulty:
Label:
Needs backport to 5.0, Needs backport to 6.0

Description

The transaction handling is off for unidirectional protocols like DNS on long lived connections. That is a single TCP/UDP session that receives multiple DNS requests/responses. For DNS this is rare, but some devices do this.

This results in the transaction cleanup trying to remove transactions that have already been removed.

Related issues 2 (0 open — 2 closed)

Copied to Suricata - Bug #4441: 6.0.x: dns: high resource usage on long lived dns connectionsClosedJason IshActions
Copied to Suricata - Bug #4474: 5.0.x: dns: high resource usage on long lived dns connectionsRejectedJason IshActions
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