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i40e: fix input validation logic for action_meta

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commit 9739d5830497812b0bdeaee356ddefbe60830b88 upstream.

Fix condition to check 'greater or equal' to prevent OOB dereference.

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 12:45:14 +02:00 committed by Greg Kroah-Hartman
parent 5c1f961231
commit 560e168341
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
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@ -3605,7 +3605,7 @@ static int i40e_validate_cloud_filter(struct i40e_vf *vf,
/* action_meta is TC number here to which the filter is applied */
if (!tc_filter->action_meta ||
tc_filter->action_meta > vf->num_tc) {
tc_filter->action_meta >= vf->num_tc) {
dev_info(&pf->pdev->dev, "VF %d: Invalid TC number %u\n",
vf->vf_id, tc_filter->action_meta);
goto err;