linux-kernel - Re: [PATCH] libbpf: Replace strcpy() with memcpy() in bpf_object_

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Message-ID: <CAO9wTFgLOymS+VDcUTCHZ7niu_gEgN-N-F1uX-Kpm+uqvaMrQg@mail.gmail.com>
Date: Thu, 17 Jul 2025 23:03:41 +0530
From: Suchit K <suchitkarunakaran@...il.com>
To: Andrii Nakryiko <andrii.nakryiko@...il.com>
Cc: ast@...nel.org, daniel@...earbox.net, andrii@...nel.org, 
	martin.lau@...ux.dev, eddyz87@...il.com, song@...nel.org, 
	yonghong.song@...ux.dev, john.fastabend@...il.com, kpsingh@...nel.org, 
	sdf@...ichev.me, haoluo@...gle.com, jolsa@...nel.org, bpf@...r.kernel.org, 
	skhan@...uxfoundation.org, linux-kernel-mentees@...ts.linux.dev, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] libbpf: Replace strcpy() with memcpy() in bpf_object__new()

> This is user-space libbpf code, where the API contract mandates that
> the path argument is a well-formed zero-terminated C string. Plus, if
> you look at the few lines above, we allocate just enough space to fit
> the entire contents of the string without truncation.
>
> In other words, there is nothing to fix or improve here.
>

Even though it’s safe in this context, would it still be a good idea
to replace strcpy() with something like memcpy() since it's
deprecated? I’m still a beginner in kernel development and trying to
find my way around, so I’d appreciate any guidance.