linux-hardening - Re: [PATCH] drivers: clk: clk-en7523.c: Initialize num before accessing hws in en7523_register

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Message-ID: <a83b9497295bd8efd6260dadf37c5a77.sboyd@kernel.org>
Date: Tue, 03 Dec 2024 14:53:44 -0800
From: Stephen Boyd <sboyd@...nel.org>
To: Gustavo A . R . Silva <gustavoars@...nel.org>, Haoyu Li <lihaoyu499@...il.com>, Kees Cook <kees@...nel.org>, Michael Turquette <mturquette@...libre.com>, linux-clk@...r.kernel.org, linux-hardening@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: stable@...r.kernel.org, Haoyu Li <lihaoyu499@...il.com>
Subject: Re: [PATCH] drivers: clk: clk-en7523.c: Initialize num before accessing hws in en7523_register_clocks

Quoting Haoyu Li (2024-12-03 06:29:15)
> With the new __counted_by annocation in clk_hw_onecell_data, the "num"
> struct member must be set before accessing the "hws" array. Failing to
> do so will trigger a runtime warning when enabling CONFIG_UBSAN_BOUNDS
> and CONFIG_FORTIFY_SOURCE.
> 
> Fixes: f316cdff8d67 ("clk: Annotate struct clk_hw_onecell_data with __counted_by")
> 
> Signed-off-by: Haoyu Li <lihaoyu499@...il.com>
> ---

Applied to clk-fixes