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Anza Urges Solana Validators to Disable Two Features Over Linux Flaw
The alert targets Ubuntu operators and calls for restricted inbound traffic while a corrected kernel is pending.

Anza’s alert on a critical Linux flaw calls for two temporary changes on Ubuntu machines used by Solana validators: restrict incoming connections and disable two networking features pending a kernel patch.
The measures address network traffic arriving at validator machines and settings within those systems.
Operators were advised to use both precautions for the period before the kernel is corrected.
A patched Linux kernel is the next step identified in the alert.