From: Simon Horman <horms@kernel.org>
To: Kees Cook <kees@kernel.org>
Cc: Tariq Toukan <tariqt@nvidia.com>,
Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
netdev@vger.kernel.org, linux-rdma@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org
Subject: Re: [PATCH] net/mlx4_core: Adjust allocation type for buddy->bits
Date: Mon, 28 Apr 2025 21:02:37 +0100 [thread overview]
Message-ID: <20250428200237.GM3339421@horms.kernel.org> (raw)
In-Reply-To: <20250426060757.work.865-kees@kernel.org>
On Fri, Apr 25, 2025 at 11:07:58PM -0700, Kees Cook wrote:
> In preparation for making the kmalloc family of allocators type aware,
> we need to make sure that the returned type from the allocation matches
> the type of the variable being assigned. (Before, the allocator would
> always return "void *", which can be implicitly cast to any pointer type.)
>
> The assigned type is "unsigned long **", but the returned type will be
> "long **". These are the same size allocation (pointer size) but the
> types do not match. Adjust the allocation type to match the assignment.
>
> Signed-off-by: Kees Cook <kees@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
next prev parent reply other threads:[~2025-04-28 20:02 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-26 6:07 [PATCH] net/mlx4_core: Adjust allocation type for buddy->bits Kees Cook
2025-04-28 20:02 ` Simon Horman [this message]
2025-04-29 11:23 ` Tariq Toukan
2025-04-29 18:20 ` patchwork-bot+netdevbpf
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