Amir Goldstein a8b98c808e fanotify: fix permission model of unprivileged group ... Reporting event->pid should depend on the privileges of the user that initialized the group, not the privileges of the user reading the events. Use an internal group flag FANOTIFY_UNPRIV to record the fact that the group was initialized by an unprivileged user. To be on the safe side, the premissions to setup filesystem and mount marks now require that both the user that initialized the group and the user setting up the mark have CAP_SYS_ADMIN. Link: https://lore.kernel.org/linux-fsdevel/CAOQ4uxiA77_P5vtv7e83g0+9d7B5W9ZTE4GfQEYbWmfT1rA=VA@mail.gmail.com/ Fixes: 7cea2a3c50 ("fanotify: support limited functionality for unprivileged users") Cc: <Stable@vger.kernel.org> # v5.12+ Link: https://lore.kernel.org/r/20210524135321.2190062-1-amir73il@gmail.com Reviewed-by: Matthew Bobrowski <repnop@google.com> Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>		2021-05-25 12:21:14 +02:00
..
fanotify.c	fanotify: configurable limits via sysfs	2021-03-16 16:49:31 +01:00
fanotify.h	fsnotify: use hash table for faster events merge	2021-03-16 16:37:51 +01:00
fanotify_user.c	fanotify: fix permission model of unprivileged group	2021-05-25 12:21:14 +02:00
Kconfig	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00