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i40e: add max boundary check for VF filters

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commit cb79fa7118c150c3c76a327894bb2eb878c02619 upstream.

There is no check for max filters that VF can request. Add it.

Fixes: e284fc2804 ("i40e: Add and delete cloud filter")
Cc: stable@vger.kernel.org
Signed-off-by: Lukasz Czapnik <lukasz.czapnik@intel.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Lukasz Czapnik 2025-08-13 12:45:16 +02:00 • committed by Greg Kroah-Hartman
commit 9176e18681
1 changed files with 10 additions and 0 deletions
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10
drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
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@ -3665,6 +3665,8 @@ err:
aq_ret);
}
#define I40E_MAX_VF_CLOUD_FILTER 0xFF00
/**
* i40e_vc_add_cloud_filter
* @vf: pointer to the VF info
@ -3704,6 +3706,14 @@ static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg)
goto err_out;
}
if (vf->num_cloud_filters >= I40E_MAX_VF_CLOUD_FILTER) {
dev_warn(&pf->pdev->dev,
"VF %d: Max number of filters reached, can't apply cloud filter\n",
vf->vf_id);
aq_ret = -ENOSPC;
goto err_out;
}
cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL);
if (!cfilter)
return -ENOMEM;