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seteuid.2, setgid.2, setresuid.2, setreuid.2, setuid.2: EINVAL can occur if UID/GID is not valid in caller's user namespace 

Also add namespaces(7) under SEE ALSO.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2013-02-19 05:09:15 +01:00
parent 8e5924c0a9
commit 0076479cdd
5 changed files with 32 additions and 8 deletions
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8
man2/seteuid.2
View File

@ -77,8 +77,9 @@ can fail even when the caller is UID 0;
it is a grave security error to omit checking for a failure return from
.BR seteuid ().
.SH ERRORS
.\" .TP
.\" .B EINVAL
.TP
.B EINVAL
The target user or group ID is not valid in this user namespace.
.TP
.B EPERM
The calling process is not privileged (Linux: does not have the
@ -143,4 +144,5 @@ and
.BR setreuid (2),
.BR setuid (2),
.BR capabilities (7),
.BR credentials (7)
.BR credentials (7),
.BR namespaces (7)

10
man2/setgid.2
View File

@ -26,7 +26,7 @@
.\" Modified 1997-01-31 by Eric S. Raymond <esr@thyrsus.com>
.\" Modified 2002-03-09 by aeb
.\"
.TH SETGID 2 2010-11-22 "Linux" "Linux Programmer's Manual"
.TH SETGID 2 2013-02-19 "Linux" "Linux Programmer's Manual"
.SH NAME
setgid \- set group identity
.SH SYNOPSIS
@ -57,6 +57,11 @@ On error, \-1 is returned, and
is set appropriately.
.SH ERRORS
.TP
.B EINVAL
The group ID specified in
.I gid
is not valid in this user namespace.
.TP
.B EPERM
The calling process is not privileged (does not have the
\fBCAP_SETGID\fP capability), and
@ -80,4 +85,5 @@ wrapper function transparently deals with the variation across kernel versions.
.BR setegid (2),
.BR setregid (2),
.BR capabilities (7),
.BR credentials (7)
.BR credentials (7),
.BR namespaces (7)

7
man2/setresuid.2
View File

@ -97,6 +97,10 @@ see the description of
in
.BR execve (2).
.TP
.B EINVAL
One or more of the target user or group IDs
is not valid in this user namespace.
.TP
.B EPERM
The calling process is not privileged (did not have the \fBCAP_SETUID\fP
capability) and tried to change the IDs to values that are not permitted.
@ -133,4 +137,5 @@ wrapper functions transparently deal with the variations across kernel versions.
.BR setreuid (2),
.BR setuid (2),
.BR capabilities (7),
.BR credentials (7)
.BR credentials (7),
.BR namespaces (7)

7
man2/setreuid.2
View File

@ -126,6 +126,10 @@ see the description of
in
.BR execve (2).
.TP
.B EINVAL
One or more of the target user or group IDs
is not valid in this user namespace.
.TP
.B EPERM
The calling process is not privileged
(Linux: does not have the
@ -194,4 +198,5 @@ wrapper functions transparently deal with the variations across kernel versions.
.BR setgid (2),
.BR setresuid (2),
.BR setuid (2),
.BR capabilities (7)
.BR capabilities (7),
.BR namespaces (7)

8
man2/setuid.2
View File

@ -103,6 +103,11 @@ see the description of
in
.BR execve (2).
.TP
.B EINVAL
The user ID specified in
.I uid
is not valid in this user namespace.
.TP
.B EPERM
The user is not privileged (Linux: does not have the
.B CAP_SETUID
@ -143,4 +148,5 @@ wrapper function transparently deals with the variation across kernel versions.
.BR setfsuid (2),
.BR setreuid (2),
.BR capabilities (7),
.BR credentials (7)
.BR credentials (7),
.BR namespaces (7)