Overlayfs idmapping, fchroot(), and a binfmt_misc overhaul

Daily mainline digest: overlayfs learns idmapped mounts, a new fchroot() syscall arrives, binfmt_misc gains BPF and transpar…

#BinfmtMisc #Fchroot #Fscrypt #Fsync #IdmappedMounts #Iomap

https://kerneldispatch.com/posts/mainline-2026-08-18

open.2: update description for O_PATH - Add fstatfs(), fchdir(), fchroot(), extattr_*_fd(), cap_*...

http://cgit.freebsd.org/src/commit/?id=c81417289606ca9c808417672c603b5e233856de

Event Attributes