Date: Mon, 16 Feb 2026 06:23:04 +0000 From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: a893e8463ab2 - stable/14 - unmount(2): do not allow MNT_DEFERRED or MNT_RECURSE flags from userspace Message-ID: <6992b7c8.3ce75.601a5a00@gitrepo.freebsd.org>
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The branch stable/14 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=a893e8463ab2741204debd17901539708ec3a970 commit a893e8463ab2741204debd17901539708ec3a970 Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2026-02-02 22:38:32 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2026-02-16 06:20:18 +0000 unmount(2): do not allow MNT_DEFERRED or MNT_RECURSE flags from userspace (cherry picked from commit cd8d44173adc375b59a24b1363476c086a7c86b4) --- 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 85d14a943d01..5ca7c43269ce 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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