RDMA/mlx5: Do not allow the user to write to the clock page

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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: 5c99eaecb1 ("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>

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Jason Gunthorpe 2019-04-16 14:07:25 +03:00

parent 7249c8ea22

commit c660133c33

1 changed files with 2 additions and 0 deletions

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drivers/infiniband/hw/mlx5/main.c

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