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ice: Fix off by one in ice_tc_forward_to_queue()

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The > comparison should be >= to prevent reading one element beyond
the end of the array.

The "vsi->num_rxq" is not strictly speaking the number of elements in
the vsi->rxq_map[] array.  The array has "vsi->alloc_rxq" elements and
"vsi->num_rxq" is less than or equal to the number of elements in the
array.  The array is allocated in ice_vsi_alloc_arrays().  It's still
an off by one but it might not access outside the end of the array.

Fixes: 143b86f346c7 ("ice: Enable RX queue selection using skbedit action")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Amritha Nambiar <amritha.nambiar@intel.com>
Tested-by: Bharathi Sreenivas <bharathi.sreenivas@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
This commit is contained in:
Dan Carpenter 2022-10-28 18:02:24 +03:00 committed by Tony Nguyen
parent c793f8ea15
commit 3f4870df1b
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/intel/ice/ice_tc_lib.c
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@ -1681,7 +1681,7 @@ ice_tc_forward_to_queue(struct ice_vsi *vsi, struct ice_tc_flower_fltr *fltr,
struct ice_vsi *ch_vsi = NULL;
u16 queue = act->rx_queue;
if (queue > vsi->num_rxq) {
if (queue >= vsi->num_rxq) {
NL_SET_ERR_MSG_MOD(fltr->extack,
"Unable to add filter because specified queue is invalid");
return -EINVAL;