Looks like this is fixed at least in 16.04 via: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1607404
The change in the kernel was: https://github.com/torvalds/linux/commit/30402c8949934fbaca07d9c20074d0d7a5a8385f
In the release notes in #1607404 the following are listed, which seem to match the fix:
- vfs: add d_real_inode() helper - af_unix: fix hard linked sockets on overlay
Looks like this is fixed at least in 16.04 via: https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/1607404
The change in the kernel was: https:/ /github. com/torvalds/ linux/commit/ 30402c8949934fb aca07d9c20074d0 d7a5a8385f
In the release notes in #1607404 the following are listed, which seem to match the fix:
- vfs: add d_real_inode() helper
- af_unix: fix hard linked sockets on overlay