mirror of https://github.com/mkerrisk/man-pages
setresuid.2: Note user namespace requirements for CAP_SETUID
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
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@ -102,8 +102,17 @@ One or more of the target user or group IDs
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is not valid in this user namespace.
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is not valid in this user namespace.
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.TP
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.TP
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.B EPERM
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.B EPERM
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The calling process is not privileged (did not have the \fBCAP_SETUID\fP
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The calling process is not privileged (did not have the necessary
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capability) and tried to change the IDs to values that are not permitted.
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capability in its user namespace)
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and tried to change the IDs to values that are not permitted.
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For
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.BR setresuid (),
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the necessary capability is
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.BR CAP_SETUID ;
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for
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.BR setresgid (),
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it is
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.BR CAP_SETGID .
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.SH VERSIONS
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.SH VERSIONS
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These calls are available under Linux since Linux 2.1.44.
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These calls are available under Linux since Linux 2.1.44.
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.SH CONFORMING TO
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.SH CONFORMING TO
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