Some filesystem syscalls could crash if a file lost its mount
Brief
Those paths now skip the missing mount instead of walking it.
Notes
63d30f6f93ff9faed796cfea1af89df9fa4894de (gnezdo@, 2026-08-15). sys/kern/vfs_syscalls.c. Guard NULL vp->v_mount. OK kirill@. Reported-by syzbot. source-changes.
Not labeled SECURITY FIX. No errata as of the 2026-08-10 Last-Modified.
Commit 63d30f6f93ff9faed796cfea1af89df9fa4894de