diff options
Diffstat (limited to 'block/partition-generic.c')
| -rw-r--r-- | block/partition-generic.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/block/partition-generic.c b/block/partition-generic.c index 5f8db5c5140f..98d60a59b843 100644 --- a/block/partition-generic.c +++ b/block/partition-generic.c @@ -289,6 +289,13 @@ void delete_partition(struct gendisk *disk, int partno) kobject_put(part->holder_dir); device_del(part_to_dev(part)); + /* + * Remove gendisk pointer from idr so that it cannot be looked up + * while RCU period before freeing gendisk is running to prevent + * use-after-free issues. Note that the device number stays + * "in-use" until we really free the gendisk. + */ + blk_invalidate_devt(part_devt(part)); hd_struct_kill(part); } |