Files
linux/drivers
Nikos Tsironis 9fc06ff568 dm clone: Add missing casts to prevent overflows and data corruption
Add missing casts when converting from regions to sectors.

In case BITS_PER_LONG == 32, the lack of the appropriate casts can lead
to overflows and miscalculation of the device sector.

As a result, we could end up discarding and/or copying the wrong parts
of the device, thus corrupting the device's data.

Fixes: 7431b7835f ("dm: add clone target")
Cc: stable@vger.kernel.org # v5.4+
Signed-off-by: Nikos Tsironis <ntsironis@arrikto.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2020-03-27 14:42:25 -04:00
..
2019-12-16 11:49:54 +01:00
2020-03-05 09:42:23 -06:00