From: Theodore Dubois <tblodt@icloud.com>
To: mtk.manpages@gmail.com
Cc: linux-man@vger.kernel.org, linux-kernel@vger.kernel.org,
Theodore Dubois <tblodt@icloud.com>
Subject: [PATCH] mmap.2: mmap with address NULL and MAP_FIXED results in EPERM
Date: Thu, 15 Jun 2017 12:09:01 -0700 [thread overview]
Message-ID: <20170615190901.30119-1-tblodt@icloud.com> (raw)
This can be verified with a simple test program. I'm not sure if this is
a kernel bug or a documentation bug, though...
---
man2/mmap.2 | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/man2/mmap.2 b/man2/mmap.2
index d1942b52a..58361c837 100644
--- a/man2/mmap.2
+++ b/man2/mmap.2
@@ -515,6 +515,13 @@ was mounted no-exec.
.\" (Since 2.4.25 / 2.6.0.)
.TP
.B EPERM
+The
+.I addr
+argument is 0 and
+.B MAP_FIXED
+is specified.
+.TP
+.B EPERM
The operation was prevented by a file seal; see
.BR fcntl (2).
.TP
--
2.13.1
next reply other threads:[~2017-06-15 20:09 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-15 19:09 Theodore Dubois [this message]
2017-06-16 15:25 ` Michal Hocko
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