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| author |   Shiraz Saleem <shiraz.saleem@intel.com> | 2019-03-28 11:49:44 -0500 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2019-03-28 14:13:27 -0300 |
| commit | 5f818d676ac455bbc812ffaaf5bf780be5465114 (patch) | |
| tree | 771a34951dad757965e4d609398f5eff95a1e99c /kernel | |
| parent | RDMA/bnxt_re: Use correct sizing on buffers holding page DMA addresses (diff) | |
| download | linux-dev-5f818d676ac455bbc812ffaaf5bf780be5465114.tar.xz linux-dev-5f818d676ac455bbc812ffaaf5bf780be5465114.zip | |
RDMA/cxbg: Use correct sizing on buffers holding page DMA addresses
The PBL array that hold the page DMA address 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 array.
Cc: Potnuri Bharat Teja <bharat@chelsio.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions