diff options
| author | Jens Axboe <[email protected]> | 2018-09-04 11:52:34 -0600 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2018-09-04 11:54:58 -0600 |
| commit | bc811f05d77f47059c197a98b6ad242eb03999cb (patch) | |
| tree | e96cabff009625665432d1b98fba898eabaa89ba /lib/string_helpers.c | |
| parent | 3111885015b458c97b4cf272e2a87f1d6f0ed06a (diff) | |
nbd: don't allow invalid blocksize settings
syzbot reports a divide-by-zero off the NBD_SET_BLKSIZE ioctl.
We need proper validation of the input here. Not just if it's
zero, but also if the value is a power-of-2 and in a valid
range. Add that.
Cc: [email protected]
Reported-by: syzbot <[email protected]>
Reviewed-by: Josef Bacik <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'lib/string_helpers.c')
0 files changed, 0 insertions, 0 deletions