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environ.7: Mention prctl(2) PR_SET_MM_ENV_START and PR_SET_MM_ENV_END operations 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
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Michael Kerrisk 2017-02-20 08:46:23 +01:00
parent c187d2a16c
commit 4dbcdd1532
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man7/environ.7
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@ -234,6 +234,13 @@ tell applications about the window size, possibly overriding the actual size.
may specify the desired printer to use.
See
.BR lpr (1).
.SH NOTES
The
.BR prctl (2)
.B PR_SET_MM_ENV_START
and
.B PR_SET_MM_ENV_END
operations can be used to control the location of the process's environment.
.SH BUGS
Clearly there is a security risk here.
Many a system command has been