Commit 0e5c56fd authored Apr 30, 2018 by Al Viro

hfs: don't allow mounting over .../rsrc



That's one case when unlink() destroys a subtree, thanks to "resource
fork" idiocy.  We might forcibly evict that shit on unlink(2), but
for now let's just disallow overmounting; as it is, anything that
plays games with those would leak mounts.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

parent 6b9cceea

fs/hfs/inode.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -543,6 +543,7 @@ static struct dentry hfs_file_lookup(struct inode dir, struct dentry *dentry,
		igrab(dir);
		hlist_add_fake(&inode->i_hash);
		mark_inode_dirty(inode);
		dont_mount(dentry);
		out:
		return d_splice_alias(inode, dentry);
		}