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authorLukasz Czapnik <[email protected]>2025-08-13 10:45:16 +0000
committerTony Nguyen <[email protected]>2025-09-18 22:46:29 +0000
commitcb79fa7118c150c3c76a327894bb2eb878c02619 (patch)
treed9ad74ec93f18f7d3a1dd9945434d7733c311159
parenti40e: fix validation of VF state in get resources (diff)
downloadkernel-cb79fa7118c150c3c76a327894bb2eb878c02619.tar.gz
kernel-cb79fa7118c150c3c76a327894bb2eb878c02619.zip
i40e: add max boundary check for VF filters
There is no check for max filters that VF can request. Add it. Fixes: e284fc280473 ("i40e: Add and delete cloud filter") Cc: [email protected] Signed-off-by: Lukasz Czapnik <[email protected]> Reviewed-by: Aleksandr Loktionov <[email protected]> Signed-off-by: Przemek Kitszel <[email protected]> Reviewed-by: Simon Horman <[email protected]> Tested-by: Rafal Romanowski <[email protected]> Signed-off-by: Tony Nguyen <[email protected]>
-rw-r--r--drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 5ef3dc43a8a0..f29941c00342 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -3905,6 +3905,8 @@ err:
aq_ret);
}
+#define I40E_MAX_VF_CLOUD_FILTER 0xFF00
+
/**
* i40e_vc_add_cloud_filter
* @vf: pointer to the VF info
@@ -3944,6 +3946,14 @@ 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) {
aq_ret = -ENOMEM;