Hi -stable team,
please backport the commit f1aa2eb5ea05 ("sysctl: fix proc_dobool() usability") to the stable kernels containing commit 83efeeeb3d04 ("tty: Allow TIOCSTI to be disabled"). (Which seems only to be the 6.2 branch only at the moment)
Without this backport the sysctl dev.net.legacy_tiocsti to enable ioctl(TIOCSTI) is not functional. So on kernels that don't enable CONFIG_LEGACY_TIOCSTI, ioctl(TIOCSTI) is not usable at all.
This ioctl is used for the copy-and-paste functionality of the screenreader "fenrir". ( https://github.com/chrys87/fenrir )
Reported-by: Storm Dragon stormdragon2976@gmail.com Link: https://lore.kernel.org/lkml/ZAOi9hDBTYqoAZuI@hotmail.com/
On Sun, Mar 05, 2023 at 02:18:11AM +0000, Thomas Weißschuh wrote:
This ioctl is used for the copy-and-paste functionality of the screenreader "fenrir". ( https://github.com/chrys87/fenrir )
Reported-by: Storm Dragon stormdragon2976@gmail.com Link: https://lore.kernel.org/lkml/ZAOi9hDBTYqoAZuI@hotmail.com/
I believe this will also cause some loss of functionality in brltty as well:
On Sat, Mar 04, 2023 at 09:51:49PM -0500, Storm Dragon wrote:
On Sun, Mar 05, 2023 at 02:18:11AM +0000, Thomas Weißschuh wrote:
This ioctl is used for the copy-and-paste functionality of the screenreader "fenrir". ( https://github.com/chrys87/fenrir )
Reported-by: Storm Dragon stormdragon2976@gmail.com Link: https://lore.kernel.org/lkml/ZAOi9hDBTYqoAZuI@hotmail.com/
I believe this will also cause some loss of functionality in brltty as well:
The documentation of brltty indicates that they only use TIOCSTI as fallback. By default a virtual keyboard device is used to simulate typing.
Maybe it would also make sense to open a ticket to ArchLinux to enable CONFIG_LEGACY_TIOCSTI again, as per the kernel default.
In accordance with the options help text:
"Say 'Y here only if you have confirmed that yout system's userspace depends on this functionality to continue operating normally"
Could you create such a ticket if think it's necessary?
On Sun, Mar 05, 2023 at 03:06:12AM +0000, Thomas Weißschuh wrote:
Maybe it would also make sense to open a ticket to ArchLinux to enable CONFIG_LEGACY_TIOCSTI again, as per the kernel default.
In accordance with the options help text:
"Say 'Y here only if you have confirmed that yout system's userspace depends on this functionality to continue operating normally"
Could you create such a ticket if think it's necessary?
The ticket has been created. The link is:
https://bugs.archlinux.org/task/77745
Thanks, Storm
linux-stable-mirror@lists.linaro.org
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Storm Dragon -
Thomas Weißschuh