Re: [PATCH net-next 0/7] net: intel: replace deprecated strncpy uses

From: Jacob Keller
Date: Thu Oct 12 2023 - 15:49:54 EST




On 10/10/2023 3:26 PM, Justin Stitt wrote:
> Hi,
>
> This series aims to eliminate uses of strncpy() as it is a deprecated
> interface [1] with many viable replacements available.
>
> Predominantly, strscpy() is the go-to replacement as it guarantees
> NUL-termination on the destination buffer (which strncpy does not). With
> that being said, I did not identify any buffer overread problems as the
> size arguments were carefully measured to leave room for trailing
> NUL-bytes. Nonetheless, we should favor more robust and less ambiguous
> interfaces.
>
> Previously, each of these patches was sent individually at:
> 1) https://lore.kernel.org/all/20231009-strncpy-drivers-net-ethernet-intel-e100-c-v1-1-ca0ff96868a3@xxxxxxxxxx/
> 2) https://lore.kernel.org/all/20231010-strncpy-drivers-net-ethernet-intel-e1000-e1000_main-c-v1-1-b1d64581f983@xxxxxxxxxx/
> 3) https://lore.kernel.org/all/20231010-strncpy-drivers-net-ethernet-intel-fm10k-fm10k_ethtool-c-v1-1-dbdc4570c5a6@xxxxxxxxxx/
> 4) https://lore.kernel.org/all/20231010-strncpy-drivers-net-ethernet-intel-i40e-i40e_ddp-c-v1-1-f01a23394eab@xxxxxxxxxx/
> 5) https://lore.kernel.org/all/20231010-strncpy-drivers-net-ethernet-intel-igb-igb_main-c-v1-1-d796234a8abf@xxxxxxxxxx/
> 6) https://lore.kernel.org/all/20231010-strncpy-drivers-net-ethernet-intel-igbvf-netdev-c-v1-1-69ccfb2c2aa5@xxxxxxxxxx/
> 7) https://lore.kernel.org/all/20231010-strncpy-drivers-net-ethernet-intel-igc-igc_main-c-v1-1-f1f507ecc476@xxxxxxxxxx/
>
> Consider these dead as this series is their new home :)
>
> I found all these instances with: $ rg "strncpy\("
>
> This series may collide in a not-so-nice way with [3]. This series can
> go in after that one with a rebase. I'll send a v2 if necessary.
>

I'm working to apply these to the Intel Wired LAN dev-queue now, and
I'll see how bad it is. I will ping you if I need a rebased version.

Thanks,
Jake