dir_is_empty should open directory with CLOEXEC
This fixes a race where one thread is executing zfs_mount() while another thread forks and execs. If the fork occurs while the directory is open, the child process will inherit (but not necessarily close immediately) the open fd for the directory, preventing the mount.
Updated by Electric Monk about 4 years ago
- % Done changed from 0 to 100
- Status changed from New to Closed
commit d420209d9c807f782c1d31f5683be74798142198 Author: Alex Reece <firstname.lastname@example.org> Date: 2016-08-18T23:48:06.000Z 7233 dir_is_empty should open directory with CLOEXEC Reviewed by: Matthew Ahrens <email@example.com> Reviewed by: Paul Dagnelie <firstname.lastname@example.org> Approved by: Richard Lowe <email@example.com>