- Fix DM core's dm_table_supports_poll to return false if no data
devices.
- Fix DM verity target so that it cannot be switched to a different DM
target type (e.g. dm-linear) via DM table reload.
dm verity: set DM_TARGET_IMMUTABLE feature flag
The device-mapper framework provides a mechanism to mark targets as
immutable (and hence fail table reloads that try to change the target
type). Add the DM_TARGET_IMMUTABLE flag to the dm-verity target's
feature flags to prevent switching the verity target with a different
target type.
Fixes: a4ffc152198e ("dm: add verity target")
Cc: stable@vger.kernel.org
Signed-off-by: Sarthak Kukreti <sarthakkukreti@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
1 file changed
