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| author | Colin Ian King <colin.king@canonical.com> | 2019-11-01 17:00:17 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-05 00:34:02 +0300 |
| commit | d0f58d784d4cd6ce7446451dddcd6dde98f73c84 (patch) | |
| tree | e94a0ae958bb06c176b0db27f3baf292e00b80dc | |
| parent | dc5ae31afbae83038dfce8d2bd35bbe7ba05a536 (diff) | |
| download | linux-d0f58d784d4cd6ce7446451dddcd6dde98f73c84.tar.xz | |
ice: fix potential infinite loop because loop counter being too small
[ Upstream commit 615457a226f042bffc3a1532afb244cab37460d4 ]
Currently the for-loop counter i is a u8 however it is being checked
against a maximum value hw->num_tx_sched_layers which is a u16. Hence
there is a potential wrap-around of counter i back to zero if
hw->num_tx_sched_layers is greater than 255. Fix this by making i
a u16.
Addresses-Coverity: ("Infinite loop")
Fixes: b36c598c999c ("ice: Updates to Tx scheduler code")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_sched.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_sched.c b/drivers/net/ethernet/intel/ice/ice_sched.c index 2a232504379d..602b0fd84c29 100644 --- a/drivers/net/ethernet/intel/ice/ice_sched.c +++ b/drivers/net/ethernet/intel/ice/ice_sched.c @@ -1052,7 +1052,7 @@ enum ice_status ice_sched_query_res_alloc(struct ice_hw *hw) struct ice_aqc_query_txsched_res_resp *buf; enum ice_status status = 0; __le16 max_sibl; - u8 i; + u16 i; if (hw->layer_info) return status; |