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Message-ID: <20250131145631.GA34138@kernel.org>
Date: Fri, 31 Jan 2025 14:56:31 +0000
From: Simon Horman <horms@...nel.org>
To: Piotr Kwapulinski <piotr.kwapulinski@...el.com>
Cc: intel-wired-lan@...ts.osuosl.org, netdev@...r.kernel.org,
dan.carpenter@...aro.org, yuehaibing@...wei.com,
maciej.fijalkowski@...el.com, przemyslaw.kitszel@...el.com
Subject: Re: [PATCH iwl-next v4] ixgbe: Fix possible skb NULL pointer
dereference
On Fri, Jan 31, 2025 at 01:14:50PM +0100, Piotr Kwapulinski wrote:
> The commit c824125cbb18 ("ixgbe: Fix passing 0 to ERR_PTR in
> ixgbe_run_xdp()") stopped utilizing the ERR-like macros for xdp status
> encoding. Propagate this logic to the ixgbe_put_rx_buffer().
>
> The commit also relaxed the skb NULL pointer check - caught by Smatch.
> Restore this check.
>
> Fixes: c824125cbb18 ("ixgbe: Fix passing 0 to ERR_PTR in ixgbe_run_xdp()")
> Reported-by: Dan Carpenter <dan.carpenter@...aro.org>
> Acked-by: Maciej Fijalkowski <maciej.fijalkowski@...el.com>
> Signed-off-by: Piotr Kwapulinski <piotr.kwapulinski@...el.com>
> ---
> v1 -> v2
> Provide extra details in commit message for motivation of this patch
> v2 -> v3
> Simplify the check condition
> v3 -> v4
> Rebase to net-queue
Reviewed-by: Simon Horman <horms@...nel.org>
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