Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
.B ENOMEM
Insufficient kernel memory was available.
.TP
-.B EPERM
-Unprivileged user(without SYS_CAP_PTRACE capability) uses this call when
-set unprivileged_userfaultfd to 0. It was introduced since Linux 5.2.
+.BR EPERM " (since Linux 5.2)"
.\" cefdca0a86be517bc390fc4541e3674b8e7803b0
+The caller is not privileged (does not have the
+.B CAP_SYS_PTRACE
+capability), and
+.I /proc/sys/vm/unprivileged_userfaultfd
+has the value 0.
.SH VERSIONS
The
.BR userfaultfd ()