Re: [PATCH net-next] xfrm: xfrm_user: use strscpy() for alg_name

[Steffen Klassert]

On Thu, Aug 14, 2025 at 09:32:17PM +0200, Miguel García wrote:
> Replace the strcpy() calls that copy the canonical algorithm name into
> alg_name with strscpy() to avoid potential overflows and guarantee NULL
> termination.
> 
> Destination is alg_name in xfrm_algo/xfrm_algo_auth/xfrm_algo_aead
> (size CRYPTO_MAX_ALG_NAME).
> 
> Tested in QEMU (BusyBox/Alpine rootfs):
>  - Added ESP AEAD (rfc4106(gcm(aes))) and classic ESP (sha256 + cbc(aes))
>  - Verified canonical names via ip -d xfrm state
>  - Checked IPComp negative (unknown algo) and deflate path
> 
> Signed-off-by: Miguel García <miguelgarciaroman8@xxxxxxxxx>

Patch applied, thanks!