Date: Tue, 03 Feb 2026 10:26:07 +0000 From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: cd8d44173adc - main - unmount(2): do not allow MNT_DEFERRED or MNT_RECURSE flags from userspace Message-ID: <6981cd3f.1c27e.1337749@gitrepo.freebsd.org>
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The branch main has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=cd8d44173adc375b59a24b1363476c086a7c86b4 commit cd8d44173adc375b59a24b1363476c086a7c86b4 Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2026-02-02 22:38:32 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2026-02-03 10:25:47 +0000 unmount(2): do not allow MNT_DEFERRED or MNT_RECURSE flags from userspace Repprted and tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 1 week --- sys/kern/vfs_mount.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sys/kern/vfs_mount.c b/sys/kern/vfs_mount.c index 13403acacc08..240bf5451a84 100644 --- a/sys/kern/vfs_mount.c +++ b/sys/kern/vfs_mount.c @@ -1733,6 +1733,8 @@ kern_unmount(struct thread *td, const char *path, int flags) int error; AUDIT_ARG_VALUE(flags); + if ((flags & (MNT_DEFERRED | MNT_RECURSE)) != 0) + return (EINVAL); if (jailed(td->td_ucred) || usermount == 0) { error = priv_check(td, PRIV_VFS_UNMOUNT); if (error)home | help
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