.\" Copyright 1994-1995, Daniel Quinlan <Daniel.Quinlan@linux.org>
.\" Copyright 2002-2017, Michael Kerrisk <mtk.manpages@gmail.com>
.\" Copyright, the authors of the Linux man-pages project
.\"
.\" SPDX-License-Identifier: GPL-3.0-or-later
.\"
.TH proc_pid_personality 5 2026-02-08 "Linux man-pages 6.19"
.SH NAME
/proc/pid/personality \- execution domain
.SH DESCRIPTION
.TP
.IR /proc/ pid /personality " (since Linux 2.6.28)"
.\" commit 478307230810d7e2a753ed220db9066dfdf88718
This read-only file exposes the process's execution domain, as set by
.BR personality (2).
The value is displayed in hexadecimal notation.
.IP
Permission to access this file is governed by a ptrace access mode
.B PTRACE_MODE_ATTACH_FSCREDS
check;
see
.BR ptrace (2).
.SH SEE ALSO
.BR proc (5)