From: Simon Horman <horms@kernel.org>
To: Dan Carpenter <dan.carpenter@linaro.org>
Cc: intel-wired-lan@lists.osuosl.org,
Jinjie Ruan <ruanjinjie@huawei.com>,
kernel-janitors@vger.kernel.org,
Jesse Brandeburg <jesse.brandeburg@intel.com>,
Eric Dumazet <edumazet@google.com>,
Tony Nguyen <anthony.l.nguyen@intel.com>,
netdev@vger.kernel.org, Jacob Keller <jacob.e.keller@intel.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
"David S. Miller" <davem@davemloft.net>
Subject: Re: [Intel-wired-lan] [PATCH net-next 2/2] ixgbe: fix end of loop test in ixgbe_set_vf_macvlan()
Date: Fri, 6 Oct 2023 13:21:04 +0200 [thread overview]
Message-ID: <ZR/toAqmRnTWljdy@kernel.org> (raw)
In-Reply-To: <34603f41-1d51-48df-9bca-a28fd5b27a53@moroto.mountain>
On Thu, Oct 05, 2023 at 04:58:01PM +0300, Dan Carpenter wrote:
> The list iterator in a list_for_each_entry() loop can never be NULL.
> If the loop exits without hitting a break then the iterator points
> to an offset off the list head and dereferencing it is an out of
> bounds access.
>
> Before we transitioned to using list_for_each_entry() loops, then
> it was possible for "entry" to be NULL and the comments mention
> this. I have updated the comments to match the new code.
>
> Fixes: c1fec890458a ("ethernet/intel: Use list_for_each_entry() helper")
> Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Simon Horman <horms@kernel.org>
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WARNING: multiple messages have this Message-ID (diff)
From: Simon Horman <horms@kernel.org>
To: Dan Carpenter <dan.carpenter@linaro.org>
Cc: Jinjie Ruan <ruanjinjie@huawei.com>,
Jesse Brandeburg <jesse.brandeburg@intel.com>,
Tony Nguyen <anthony.l.nguyen@intel.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Jacob Keller <jacob.e.keller@intel.com>,
intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org,
kernel-janitors@vger.kernel.org
Subject: Re: [PATCH net-next 2/2] ixgbe: fix end of loop test in ixgbe_set_vf_macvlan()
Date: Fri, 6 Oct 2023 13:21:04 +0200 [thread overview]
Message-ID: <ZR/toAqmRnTWljdy@kernel.org> (raw)
In-Reply-To: <34603f41-1d51-48df-9bca-a28fd5b27a53@moroto.mountain>
On Thu, Oct 05, 2023 at 04:58:01PM +0300, Dan Carpenter wrote:
> The list iterator in a list_for_each_entry() loop can never be NULL.
> If the loop exits without hitting a break then the iterator points
> to an offset off the list head and dereferencing it is an out of
> bounds access.
>
> Before we transitioned to using list_for_each_entry() loops, then
> it was possible for "entry" to be NULL and the comments mention
> this. I have updated the comments to match the new code.
>
> Fixes: c1fec890458a ("ethernet/intel: Use list_for_each_entry() helper")
> Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Simon Horman <horms@kernel.org>
next prev parent reply other threads:[~2023-10-06 11:23 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-05 13:57 [Intel-wired-lan] [PATCH net-next 1/2] igb: Fix an end of loop test Dan Carpenter
2023-10-05 13:57 ` Dan Carpenter
2023-10-05 13:58 ` [Intel-wired-lan] [PATCH net-next 2/2] ixgbe: fix end of loop test in ixgbe_set_vf_macvlan() Dan Carpenter
2023-10-05 13:58 ` Dan Carpenter
2023-10-06 11:21 ` Simon Horman [this message]
2023-10-06 11:21 ` Simon Horman
2023-10-09 15:18 ` [Intel-wired-lan] " Jesse Brandeburg
2023-10-09 15:18 ` Jesse Brandeburg
2023-10-16 10:25 ` Romanowski, Rafal
2023-10-16 10:25 ` Romanowski, Rafal
2023-10-06 11:20 ` [Intel-wired-lan] [PATCH net-next 1/2] igb: Fix an end of loop test Simon Horman
2023-10-06 11:20 ` Simon Horman
2023-10-09 15:17 ` [Intel-wired-lan] " Jesse Brandeburg
2023-10-09 15:17 ` Jesse Brandeburg
2023-10-16 10:25 ` [Intel-wired-lan] " Romanowski, Rafal
2023-10-16 10:25 ` Romanowski, Rafal
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