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capabilities.7: CAP_IPC_LOCK also governs memory allocation using huge pages 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2021-05-17 14:08:37 +12:00
parent f603c6f39d
commit 3dcdef9437
1 changed files with 10 additions and 0 deletions
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man7/capabilities.7
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@ -205,11 +205,21 @@ the filesystem or any of the supplementary GIDs of the calling process.
.B CAP_IPC_LOCK
.\" FIXME . As at Linux 3.2, there are some strange uses of this capability
.\" in other places; they probably should be replaced with something else.
.PD 0
.RS
.IP * 2
Lock memory
.RB ( mlock (2),
.BR mlockall (2),
.BR mmap (2),
.BR shmctl (2));
.IP *
Allocate memory using huge pages
.RB ( memfd_create (2)
.BR mmap (2),
.BR shmctl (2)).
.PD 0
.RE
.TP
.B CAP_IPC_OWNER
Bypass permission checks for operations on System V IPC objects.