get_robust_list.2: get_robust_list() is governed by PTRACE_MODE_READ_REALCREDS

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

diff --git a/man2/get_robust_list.2 b/man2/get_robust_list.2
index 537a0406668573707ecb32ca5f194460c86c4829..461bc00184a9fbf2c9143cdfd67a32f0845f91ea 100644 (file)
--- a/man2/get_robust_list.2
+++ b/man2/get_robust_list.2
@@ -64,6 +64,13 @@ The size of the object pointed to by
 is stored in
 .IR len_ptr .
 
+Permission to employ
+.BR get_robust_list ()
+is governed by a ptrace access mode
+.B PTRACE_MODE_READ_REALCREDS
+check; see
+.BR ptrace (2).
+
 The
 .BR set_robust_list ()
 system call requests the kernel to record the head of the list of