net/mlx5: DR, fix a potential use-after-free bug
authorWentao_Liang <Wentao_Liang_g@163.com>
Thu, 19 Aug 2021 14:30:05 +0000 (22:30 +0800)
committerSaeed Mahameed <saeedm@nvidia.com>
Thu, 26 Aug 2021 22:15:42 +0000 (15:15 -0700)
commit6cc64770fb386b10a64a1fe09328396de7bb5262
tree19dcf3daf00c61d52735d78f57e3013c8a90649d
parentf9d196bd632b8b79261ec3366c30ec3923ea9a02
net/mlx5: DR, fix a potential use-after-free bug

In line 849 (#1), "mlx5dr_htbl_put(cur_htbl);" drops the reference to
cur_htbl and may cause cur_htbl to be freed.

However, cur_htbl is subsequently used in the next line, which may result
in an use-after-free bug.

Fix this by calling mlx5dr_err() before the cur_htbl is put.

Signed-off-by: Wentao_Liang <Wentao_Liang_g@163.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
drivers/net/ethernet/mellanox/mlx5/core/steering/dr_rule.c