Linux kernel bug fix: umount(2): move the flag validity checks first
Subsystem: filesystem (fs/namespace.c)
Bug type: unknown, severity: unknown
Files changed: fs/namespace.c
Introduced by Christoph Hellwig on 2020-07-31 08:17:50 +0200; fixed by Al Viro on 2021-01-04 15:31:58 -0500 (lifetime: 157 days)