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| author | Mike Christie <michael.christie@oracle.com> | 2023-10-12 10:05:59 -0500 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-10-17 08:27:24 -0600 |
| commit | 56974c07f2c77d302fc311b0c6b95f45be76a3ae (patch) | |
| tree | 666bc36eacf54488d18e783e17bba23fdac0e312 /lib/linear_ranges.c | |
| parent | d451fdd0fe8323bf970b735cf276d4e11ae8cdcc (diff) | |
| download | linux-stable-56974c07f2c77d302fc311b0c6b95f45be76a3ae.tar.gz linux-stable-56974c07f2c77d302fc311b0c6b95f45be76a3ae.tar.bz2 linux-stable-56974c07f2c77d302fc311b0c6b95f45be76a3ae.zip | |
ublk: Limit dev_id/ub_number values
The dev_id/ub_number is used for the ublk dev's char device's minor
number so it has to fit into MINORMASK. This patch adds checks to prevent
userspace from passing a number that's too large and limits what can be
allocated by the ublk_index_idr for the case where userspace has the
kernel allocate the dev_id/ub_number.
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20231012150600.6198-2-michael.christie@oracle.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'lib/linear_ranges.c')
0 files changed, 0 insertions, 0 deletions