slice bounds out of range - Frequent Ingress Controller restarts

[naveen2112]

Bug Description:
Our Kubernetes cluster has been running for the past 8 months, handling 10,000 to 30,000 requests per second, primarily for a chat module(web socket). There have been no sudden changes in load, but the Ingress Controller has started restarting frequently with the following error:

panic: runtime error: slice bounds out of range [:65283] with capacity 14918

This issue is affecting production stability, and we are looking for guidance on the possible cause and resolution.

Environment Details:
Ingress Controller Version:

NGINX Ingress Controller
nginx version: nginx/1.25.3
Repository: /~https://github.com/kubernetes/ingress-nginx
Build: 4fb5aac
Release: v1.10.1

Kubernetes Version:
v1.30.1

Steps to Reproduce:
The cluster runs with a stable load (10K–30K requests/sec).
No significant changes were made to the ingress configuration or deployment.
The Ingress Controller pod restarts frequently with a panic error.

Actual Behavior:
The Ingress Controller crashes frequently with a runtime panic.
An out-of-bounds slice access.

Relevant Logs:
panic: runtime error: slice bounds out of range [:65283] with capacity 14918

Troubleshooting Steps Taken:
Checked cluster resource utilization (CPU/memory) – no anomalies.
No recent configuration changes or version upgrades.
No sudden spike in traffic beyond normal range.
Observed that the issue occurs randomly without external triggers.

[k8s-ci-robot]

This issue is currently awaiting triage.

If Ingress contributors determines this is a relevant issue, they will accept it by applying the triage/accepted label and provide further guidance.

The triage/accepted label can be added by org members by writing /triage accepted in a comment.

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[longwuyuan]

/close

duplicae of #12869

[k8s-ci-robot]

@longwuyuan: Closing this issue.

In response to this:

/close

duplicae of #12869

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.