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| author | Shiraz Saleem <shiraz.saleem@intel.com> | 2019-03-28 11:49:46 -0500 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-03-28 14:13:27 -0300 |
| commit | 93923d309bda99bc52f8cee6ea4774895b18ae5b (patch) | |
| tree | e2fa64df48b595595a7c56f7e12ee29158f675fd /drivers/infiniband/core/sysfs.c | |
| parent | 41d34865b24c6a0b594b0a69bfe9ea56dff5abcd (diff) | |
| download | linux-next-93923d309bda99bc52f8cee6ea4774895b18ae5b.tar.gz | |
RDMA/rxe: Use correct sizing on buffers holding page DMA addresses
The buffer that holds the page DMA addresses is sized off umem->nmap.
This can potentially cause out of bound accesses on the PBL array when
iterating the umem DMA-mapped SGL. This is because if umem pages are
combined, umem->nmap can be much lower than the number of system pages
in umem.
Use ib_umem_num_pages() to size this buffer.
Cc: Moni Shoua <monis@mellanox.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/core/sysfs.c')
0 files changed, 0 insertions, 0 deletions