diff options
Diffstat (limited to 'fs/quota/dquot.c')
| -rw-r--r-- | fs/quota/dquot.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c index b1322dd9d136..1bfac28b7e7d 100644 --- a/fs/quota/dquot.c +++ b/fs/quota/dquot.c @@ -841,6 +841,9 @@ struct dquot *dqget(struct super_block *sb, struct kqid qid) unsigned int hashent = hashfn(sb, qid); struct dquot *dquot, *empty = NULL; + if (!qid_has_mapping(sb->s_user_ns, qid)) + return ERR_PTR(-EINVAL); + if (!sb_has_quota_active(sb, qid.type)) return ERR_PTR(-ESRCH); we_slept: @@ -2268,6 +2271,11 @@ static int vfs_load_quota_inode(struct inode *inode, int type, int format_id, error = -EINVAL; goto out_fmt; } + /* Filesystems outside of init_user_ns not yet supported */ + if (sb->s_user_ns != &init_user_ns) { + error = -EINVAL; + goto out_fmt; + } /* Usage always has to be set... */ if (!(flags & DQUOT_USAGE_ENABLED)) { error = -EINVAL; |