diff options
| author | Nikos Tsironis <[email protected]> | 2020-03-27 14:01:10 +0000 |
|---|---|---|
| committer | Mike Snitzer <[email protected]> | 2020-03-27 18:42:25 +0000 |
| commit | 9fc06ff56845cc5ccafec52f545fc2e08d22f849 (patch) | |
| tree | a1d17e2eba1e558cbcccf03d83ed817356a45d82 /drivers/gpu/drm/omapdrm/dss/omapdss-boot-init.c | |
| parent | dm clone: Add overflow check for number of regions (diff) | |
| download | kernel-9fc06ff56845cc5ccafec52f545fc2e08d22f849.tar.gz kernel-9fc06ff56845cc5ccafec52f545fc2e08d22f849.zip | |
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: 7431b7835f55 ("dm: add clone target")
Cc: [email protected] # v5.4+
Signed-off-by: Nikos Tsironis <[email protected]>
Signed-off-by: Mike Snitzer <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/omapdrm/dss/omapdss-boot-init.c')
0 files changed, 0 insertions, 0 deletions