D59875.diff
No OneTemporary
Actions

Size

1 KB

Referenced Files

None

Subscribers

None

D59875.diff
View Options

	diff --git a/lib/libsys/fcntl.2 b/lib/libsys/fcntl.2
	--- a/lib/libsys/fcntl.2
	+++ b/lib/libsys/fcntl.2
	@@ -25,7 +25,7 @@
	.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	.\" SUCH DAMAGE.
	.\"
	-.Dd June 24, 2025
	+.Dd September 22, 2026
	.Dt FCNTL 2
	.Os
	.Sh NAME
	@@ -173,6 +173,13 @@
	.Xr openat 2
	where the directory descriptor has the flag set causes the new directory
	descriptor to also have the flag set.
	+A file descriptor with the
	+.Dv FD_RESOLVE_BENEATH
	+set cannot be used as either the source or target descriptor in
	+.Xr renameat 2
	+or
	+.Xr renameat2 2
	+system calls.
	.El
	.It Dv F_SETFD
	Set flags associated with
	diff --git a/sys/kern/vfs_syscalls.c b/sys/kern/vfs_syscalls.c
	--- a/sys/kern/vfs_syscalls.c
	+++ b/sys/kern/vfs_syscalls.c
	@@ -3869,6 +3869,15 @@
	error = EEXIST;
	goto out;
	}
	+ if (fvp->v_type == VDIR &&
	+ ((fromnd.ni_resflags \| tond.ni_resflags) & NIRES_BENEATH) != 0) {
	+ /*
	+ * We must not rename a directory relative to FD_RESOLVE_BENEATH
	+ * descriptors.
	+ */
	+ error = ENOTCAPABLE;
	+ goto out;
	+ }
	if (exchange) {
	if (tvp == NULL) {
	error = ENOENT;