Re: [PATCH v2] man/man2const/TIOCLINUX.2const: Document CAP_SYS_ADMIN requirement for TIOCL_SETSEL modes
From: Alejandro Colomar <alx@kernel.org>
Date: 2025-05-02 10:43:43
Hi Günther, On Fri, May 02, 2025 at 12:24:03PM +0200, Günther Noack wrote:
CAP_SYS_ADMIN was previously required for the entire TIOCL_SETSEL subcode, but is now only needed for a subset of the selection modes, since linux.git 2f83e38a095f (2025-01-13; "tty: Permit some TIOCL_SETSEL modes without CAP_SYS_ADMIN"). The CAP_SYS_ADMIN requirement for TIOCL_SELMOUSEREPORT was further corrected in linux.git ee6a44da3c87 (2025-04-11; "tty: Require CAP_SYS_ADMIN for all usages of TIOCL_SELMOUSEREPORT"). Admittedly, there are kernels where CAP_SYS_ADMIN was briefly not required for TIOCL_SELMOUSEREPORT, even after Linux v6.7, but this was a mistake which is now fixed in all up-to-date stable kernels. Therefore, we still document CAP_SYS_ADMIN as required "since Linux 6.7" in this case. Link: <https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=2f83e38a095f8bf7c6029883d894668b03b9bd93> Link: <https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=ee6a44da3c87cf64d67dd02be8c0127a5bf56175> Signed-off-by: Günther Noack <redacted>
Thanks! I've applied the patch. <https://www.alejandro-colomar.es/src/alx/linux/man-pages/man-pages.git/commit/?h=contrib&id=5889aa978ddc93d31d3c48c29899761ebde3f53d> Have a lovely day! Alex
quoted hunk ↗ jump to hunk
--- man/man2const/TIOCLINUX.2const | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-)diff --git a/man/man2const/TIOCLINUX.2const b/man/man2const/TIOCLINUX.2const index 61f1c596d..b98a0202b 100644 --- a/man/man2const/TIOCLINUX.2const +++ b/man/man2const/TIOCLINUX.2const@@ -72,18 +72,30 @@ may be one of the following operations: Select character-by-character. The indicated screen characters are highlighted and saved in a kernel buffer. +.IP +Since Linux 6.7, using this selection mode requires the +.B CAP_SYS_ADMIN +capability. .TP .B TIOCL_SELWORD Select word-by-word, expanding the selection outwards to align with word boundaries. The indicated screen characters are highlighted and saved in a kernel buffer. +.IP +Since Linux 6.7, using this selection mode requires the +.B CAP_SYS_ADMIN +capability. .TP .B TIOCL_SELLINE Select line-by-line, expanding the selection outwards to select full lines. The indicated screen characters are highlighted and saved in a kernel buffer. +.IP +Since Linux 6.7, using this selection mode requires the +.B CAP_SYS_ADMIN +capability. .TP .B TIOCL_SELPOINTER Show the pointer at position@@ -118,11 +130,11 @@ If mouse reporting is not enabled for the terminal, this operation yields an .B EINVAL error. -.RE .IP -Since Linux 6.7, using this subcode requires the +Since Linux 6.7, using this selection mode requires the .B CAP_SYS_ADMIN capability. +.RE .TP .BR subcode = TIOCL_PASTESEL Paste selection.-- 2.49.0
-- <https://www.alejandro-colomar.es/>
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