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authorDan Carpenter <dan.carpenter@oracle.com>2020-02-25 19:20:56 +0300
committerDan Williams <dan.j.williams@intel.com>2020-02-28 18:21:52 -0800
commitf84afbdd3a9e5e10633695677b95422572f920dc (patch)
tree6a29d775d3d3623ae8068ba8105f2f96cb2fe520 /drivers/acpi/property.c
parent01091c496f920e634ea84b689f480c39016752a8 (diff)
libnvdimm: Out of bounds read in __nd_ioctl()
The "cmd" comes from the user and it can be up to 255. It it's more than the number of bits in long, it results out of bounds read when we check test_bit(cmd, &cmd_mask). The highest valid value for "cmd" is ND_CMD_CALL (10) so I added a compare against that. Fixes: 62232e45f4a2 ("libnvdimm: control (ioctl) messages for nvdimm_bus and nvdimm devices") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20200225162055.amtosfy7m35aivxg@kili.mountain Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/acpi/property.c')
0 files changed, 0 insertions, 0 deletions