| commit | c660133c339f9ab684fdf568c0d51b9ae5e86002 | [log] [tgz] |
|---|---|---|
| author | Jason Gunthorpe <jgg@mellanox.com> | Tue Apr 16 14:07:25 2019 +0300 |
| committer | Jason Gunthorpe <jgg@mellanox.com> | Wed Apr 24 13:06:24 2019 -0300 |
| tree | 20fed69f72f0cfb9e5acc778c79c1d7a13c07d38 | |
| parent | 7249c8ea227a582c14f63e9e8853eb7369122f10 [diff] |
RDMA/mlx5: Do not allow the user to write to the clock page
The intent of this VMA was to be read-only from user space, but the
VM_MAYWRITE masking was missed, so mprotect could make it writable.
Cc: stable@vger.kernel.org
Fixes: 5c99eaecb1fc ("IB/mlx5: Mmap the HCA's clock info to user-space")
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Reviewed-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>