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| author | Adrian Reber <areber@redhat.com> | 2023-12-08 17:36:56 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-12-15 16:20:03 +0300 |
| commit | e0f25b8992345aa5f113da2815f5add98738c611 (patch) | |
| tree | 69580ea2a397112eed7fe3738d60734e5cd846f2 /tools/perf/scripts/python/futex-contention.py | |
| parent | 3d19ff562d0618a17c4f2c42c8fc84de4e2880e2 (diff) | |
| download | linux-e0f25b8992345aa5f113da2815f5add98738c611.tar.xz | |
tty: allow TIOCSLCKTRMIOS with CAP_CHECKPOINT_RESTORE
The capability CAP_CHECKPOINT_RESTORE was introduced to allow non-root
users to checkpoint and restore processes as non-root with CRIU.
This change extends CAP_CHECKPOINT_RESTORE to enable the CRIU option
'--shell-job' as non-root. CRIU's man-page describes the '--shell-job'
option like this:
Allow one to dump shell jobs. This implies the restored task will
inherit session and process group ID from the criu itself. This option
also allows to migrate a single external tty connection, to migrate
applications like top.
TIOCSLCKTRMIOS can only be done if the process has CAP_SYS_ADMIN and
this change extends it to CAP_SYS_ADMIN or CAP_CHECKPOINT_RESTORE.
With this change it is possible to checkpoint and restore processes
which have a tty connection as non-root if CAP_CHECKPOINT_RESTORE is
set.
Acked-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Adrian Reber <areber@redhat.com>
Acked-by: Andrei Vagin <avagin@gmail.com>
Link: https://lore.kernel.org/r/20231208143656.1019-1-areber@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/futex-contention.py')
0 files changed, 0 insertions, 0 deletions