diff options
| author | Günther Noack <gnoack@google.com> | 2023-12-01 13:26:45 +0100 |
|---|---|---|
| committer | Alejandro Colomar <alx@kernel.org> | 2023-12-21 15:39:06 +0100 |
| commit | 846876d13a446836ca19ba1f619515a2cd992217 (patch) | |
| tree | db98d2ea8e84cc5c7c7210bd7fb82584145c9e8e | |
| parent | aa1e1b1dd787db952efffe4551e85de62523c54c (diff) | |
ioctl_console.2: Document new CAP_SYS_ADMIN restrictions (since Linux 6.7)
Since Linux commit 8d1b43f6a6df7bce ("tty: Restrict access to TIOCLINUX'
copy-and-paste subcommands"), the TIOCL_SETSEL, TIOCL_PASTESEL and
TIOCL_SELLOADLUT subcommands require CAP_SYS_ADMIN.
Cc: Hanno Böck <hanno@hboeck.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Günther Noack <gnoack@google.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
| -rw-r--r-- | man2/ioctl_console.2 | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/man2/ioctl_console.2 b/man2/ioctl_console.2 index 684b4d013..abc50b786 100644 --- a/man2/ioctl_console.2 +++ b/man2/ioctl_console.2 @@ -715,12 +715,20 @@ is 0 for character-by-character selection, or 2 for line-by-line selection. The indicated screen characters are highlighted and saved in a kernel buffer. +.IP +Since Linux 6.7, using this subcode requires the +.B CAP_SYS_ADMIN +capability. .TP .BR TIOCLINUX ", " subcode = TIOCL_PASTESEL Paste selection. The characters in the selection buffer are written to .IR fd . +.IP +Since Linux 6.7, using this subcode requires the +.B CAP_SYS_ADMIN +capability. .TP .BR TIOCLINUX ", " subcode = TIOCL_UNBLANKSCREEN Unblank the screen. @@ -729,6 +737,10 @@ Unblank the screen. Sets contents of a 256-bit look up table defining characters in a "word", for word-by-word selection. (Since Linux 1.1.32.) +.IP +Since Linux 6.7, using this subcode requires the +.B CAP_SYS_ADMIN +capability. .TP .BR TIOCLINUX ", " subcode = TIOCL_GETSHIFTSTATE .I argp |