Affected by GO-2026-4289 and 2 other vulnerabilities

GO-2026-4289: CoreDNS gRPC/HTTPS/HTTP3 servers lack resource limits, enabling DoS via unbounded connections and oversized messages in github.com/coredns/coredns

GO-2026-4630: CoreDNS ACL Bypass in github.com/coredns/coredns

GO-2026-4635: CoreDNS Loop Detection Denial of Service Vulnerability in github.com/coredns/coredns

freq

package

v1.13.0 Latest Latest Go to latest Published: Sep 30, 2025 License: Apache-2.0 Imports: 2 Imported by: 77

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
Learn more about best practices

Repository

github.com/coredns/coredns

Links

Documentation ¶

Overview ¶

Package freq keeps track of last X seen events. The events themselves are not stored here. So the Freq type should be added next to the thing it is tracking.

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type Freq ¶

type Freq struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

Freq tracks the frequencies of things.

func New ¶

func New(t time.Time) *Freq

New returns a new initialized Freq.

func (*Freq) Hits ¶

func (f *Freq) Hits() int

Hits returns the number of hits that we have seen, according to the updates we have done to f.

func (*Freq) Reset ¶

func (f *Freq) Reset(t time.Time, hits int)

Reset resets f to time t and hits to hits.

func (*Freq) Update ¶

func (f *Freq) Update(d time.Duration, now time.Time) int

Update updates the number of hits. Last time seen will be set to now. If the last time we've seen this entity is within now - d, we increment hits, otherwise we reset hits to 1. It returns the number of hits.

Source Files ¶

View all Source files

freq.go

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