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| author | Dan Williams <dan.j.williams@intel.com> | 2019-02-20 21:12:50 -0800 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2019-02-20 21:12:50 -0800 |
| commit | ad428cdb525a97d15c0349fdc80f3d58befb50df (patch) | |
| tree | 31bebae17f60a5e5a214e135e216fab74e840966 /drivers/nvdimm | |
| parent | fa7d2e639cd90442d868dfc6ca1d4cc9d8bf206e (diff) | |
dax: Check the end of the block-device capacity with dax_direct_access()
The checks in __bdev_dax_supported() helped mitigate a potential data
corruption bug in the pmem driver's handling of section alignment
padding. Strengthen the checks, including checking the end of the range,
to validate the dev_pagemap, Xarray entries, and sector-to-pfn
translation established for pmem namespaces.
Acked-by: Jan Kara <jack@suse.cz>
Cc: "Darrick J. Wong" <darrick.wong@oracle.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm')
0 files changed, 0 insertions, 0 deletions