diff options
author | Aleksandr Mishin <amishin@t-argos.ru> | 2024-06-04 13:05:52 +0300 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-06-21 15:40:06 +0300 |
commit | a03a3fa12769e25f4385bee587afe1445aee7f7a (patch) | |
tree | ae85a06d2d43f134b7a7b7a630c362390b74e0d0 /drivers | |
parent | e6777ae0bf6fd5bc626bb051c8c93e3c8198a3f8 (diff) | |
download | linux-a03a3fa12769e25f4385bee587afe1445aee7f7a.tar.xz |
net/mlx5: Fix tainted pointer delete is case of flow rules creation fail
[ Upstream commit 229bedbf62b13af5aba6525ad10b62ad38d9ccb5 ]
In case of flow rule creation fail in mlx5_lag_create_port_sel_table(),
instead of previously created rules, the tainted pointer is deleted
deveral times.
Fix this bug by using correct flow rules pointers.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: 352899f384d4 ("net/mlx5: Lag, use buckets in hash mode")
Signed-off-by: Aleksandr Mishin <amishin@t-argos.ru>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://lore.kernel.org/r/20240604100552.25201-1-amishin@t-argos.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/lag/port_sel.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag/port_sel.c b/drivers/net/ethernet/mellanox/mlx5/core/lag/port_sel.c index 101b3bb90863..e12bc4cd8066 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/lag/port_sel.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/lag/port_sel.c @@ -88,9 +88,13 @@ static int mlx5_lag_create_port_sel_table(struct mlx5_lag *ldev, &dest, 1); if (IS_ERR(lag_definer->rules[idx])) { err = PTR_ERR(lag_definer->rules[idx]); - while (i--) - while (j--) + do { + while (j--) { + idx = i * ldev->buckets + j; mlx5_del_flow_rules(lag_definer->rules[idx]); + } + j = ldev->buckets; + } while (i--); goto destroy_fg; } } |