| commit | 07accfa9d1a8bac8262f6d24a94a54d2d1f35149 | [log] [tgz] |
|---|---|---|
| author | Jerry Hoemann <jerry.hoemann@hpe.com> | Wed Jan 06 16:03:41 2016 -0700 |
| committer | Dan Williams <dan.j.williams@intel.com> | Sat Mar 05 12:24:06 2016 -0800 |
| tree | e1c5fa13f27d8094d61a630d47cd1f6a621d3443 | |
| parent | 4dc0e7be884e0f99211107dd75e6e1884b7b3754 [diff] |
libnvdimm: Fix security issue with DSM IOCTL. Code attempts to prevent certain IOCTL DSM from being called when device is opened read only. This security feature can be trivially overcome by changing the size portion of the ioctl_command which isn't used. Check only the _IOC_NR (i.e. the command). Cc: <stable@vger.kernel.org> Signed-off-by: Jerry Hoemann <jerry.hoemann@hpe.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>