[LTP] cve: icmp_rate_limit: set icmp_msgs_burst within network namespace

[linuxtestproject.agent@gmail.com]

Hi Wei,

On 2026-04-23, Wei Gao wrote:
> cve: icmp_rate_limit: set icmp_msgs_burst within network namespace

>  	childns = SAFE_OPEN("/proc/self/ns/net", O_RDONLY);
>  
> +	SAFE_FILE_PRINTF("/proc/sys/net/ipv4/icmp_msgs_burst", "50");

Correct fix. The save_restore entry was writing to the initial namespace
before CLONE_NEWNET, making it ineffective inside the child namespace where
the test actually runs.

> -		{"/proc/sys/net/ipv4/icmp_msgs_burst", "50", TST_SR_TBROK},

No explicit restore needed — the sysctl lives in the child namespace, which
is destroyed when the test exits.

Reviewed-by: LTP AI Reviewer <ltp-ai@noreply.github.com>

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