diff options
| author |   Maor Gottlieb <maorg@mellanox.com> | 2017-08-23 17:50:03 +0300 |
|---|---|---|
| committer |   Saeed Mahameed <saeedm@mellanox.com> | 2017-09-26 20:52:00 +0300 |
| commit | 800350a3f145010c353bd7425428c05ac5cfc26a (patch) | |
| tree | c400118016e92f7c0786483f5295ea78af495026 /include/net/switchdev.h | |
| parent | net/mlx5: Fix creating a new FTE when an existing but full FTE exists (diff) | |
| download | wireguard-linux-800350a3f145010c353bd7425428c05ac5cfc26a.tar.xz wireguard-linux-800350a3f145010c353bd7425428c05ac5cfc26a.zip | |
net/mlx5: Avoid NULL pointer dereference on steering cleanup
On cleanup, when the node is the last child of parent then it calls to
tree_put_node on the parent, if the parent's reference count
is decremented to 0 (for e.g. when deleting last destination of FTE)
then we free the parent as well and vice versa. In such a case
we will try to free the parent node again.
Increment the parent reference count before cleaning it's children
will prevent implicit release of the parent object.
Fixes: 0da2d66666d3 ('net/mlx5: Properly remove all steering objects')
signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'include/net/switchdev.h')
0 files changed, 0 insertions, 0 deletions