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SubjectRe: [PATCH v2] wifi: ath10k: replace deprecated strncpy with memcpy
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On 10/24/2023 10:42 AM, Justin Stitt wrote:
> strncpy() is deprecated [1] and we should prefer less ambiguous
> interfaces.
>
> In this case, arvif->u.ap.ssid has its length maintained by
> arvif->u.ap.ssid_len which indicates it may not need to be
> NUL-terminated. Make this explicit with __nonstring and use a plain old
> memcpy.
>
> This is also consistent with future copies into arvif->u.ap.ssid:
>
> if (changed & BSS_CHANGED_SSID &&
> vif->type == NL80211_IFTYPE_AP) {
> arvif->u.ap.ssid_len = vif->cfg.ssid_len;
> if (vif->cfg.ssid_len)
> memcpy(arvif->u.ap.ssid, vif->cfg.ssid,
> vif->cfg.ssid_len);
> arvif->u.ap.hidden_ssid = info->hidden_ssid;
> }
>
> Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
> Link: https://github.com/KSPP/linux/issues/90
> Cc: linux-hardening@vger.kernel.org
> Signed-off-by: Justin Stitt <justinstitt@google.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>

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