Commit ee8ac4d6 authored Mar 06, 2015 by David Howells Committed by Al Viro Apr 15, 2015

VFS: AF_UNIX sockets should call mknod on the top layer only

AF_UNIX sockets should call mknod on the top layer only and should not attempt
to modify the lower layer in a layered filesystem such as overlayfs.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

parent aa4d8616

net/unix/af_unix.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -839,7 +839,7 @@ static int unix_mknod(const char sun_path, umode_t mode, struct path res)
		*/
		err = security_path_mknod(&path, dentry, mode, 0);
		if (!err) {
		err = vfs_mknod(path.dentry->d_inode, dentry, mode, 0);
		err = vfs_mknod(d_inode(path.dentry), dentry, mode, 0);
		if (!err) {
		res->mnt = mntget(path.mnt);
		res->dentry = dget(dentry);