| Message ID | 1438689218-6921-35-git-send-email-agruenba@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/fs/ext4/richacl.c b/fs/ext4/richacl.c index 4385f6d..9d80299 100644 --- a/fs/ext4/richacl.c +++ b/fs/ext4/richacl.c @@ -68,8 +68,13 @@ ext4_set_richacl(handle_t *handle, struct inode *inode, struct richacl *acl) int retval; if (acl) { - mode_t mode = inode->i_mode; + mode_t mode; + /* Don't allow acls with unmapped identifiers. */ + if (richacl_has_unmapped_identifiers(acl)) + return -EINVAL; + + mode = inode->i_mode; if (richacl_equiv_mode(acl, &mode) == 0) { inode->i_mode = mode; ext4_mark_inode_dirty(handle, inode);
Don't allow acls which contain unmapped identifiers: they are meaningful for remote file systems only. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> --- fs/ext4/richacl.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)