Re: We found a bug in i40e_debugfs.c for the latest linux

[Jacob Keller]

On 7/16/2025 5:52 AM, Wang Haoran wrote:
> Thanks for the clarification regarding i40e_dbg_command_buf.
> 
> Please let me know if you'd like me to submit a patch to
> remove this interface, or to replace snprintf() with scnprintf().
> 
> 
Since this is a debugfs interface, I think we're safe to drop the read
accesses entirely, without fear of backwards compatibility violations. I
think I can handle making a patch for that, but I'm happy to accept a
patch from you if you want.

It looks like there is some complication as the
i40e_dbg_netdev_ops_write() does appear to use this buffer for scratch
space. I think that would need cleanup to align with how the
i40e_dbg_command_write() function works with an allocated buffer rather
than using this static space in the driver.

Thanks,
Jake

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