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-rw-r--r--lib/libsys/fcntl.29
1 files changed, 8 insertions, 1 deletions
diff --git a/lib/libsys/fcntl.2 b/lib/libsys/fcntl.2
index b919e1b8674b..123dd5543ab2 100644
--- 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 @@ and similar operations, and opening a directory with
.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