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782191c748
linux/security/landlock
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Mickaël Salaün 782191c748
landlock: Warn once if a Landlock action is requested while disabled 
Because sandboxing can be used as an opportunistic security measure,
user space may not log unsupported features.  Let the system
administrator know if an application tries to use Landlock but failed
because it isn't enabled at boot time.  This may be caused by boot
loader configurations with outdated "lsm" kernel's command-line
parameter.

Cc: stable@vger.kernel.org
Fixes: 265885daf3 ("landlock: Add syscall implementations")
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Günther Noack <gnoack3000@gmail.com>
Link: https://lore.kernel.org/r/20240227110550.3702236-2-mic@digikod.net
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2024-03-07 11:29:46 +01:00
..
.kunitconfig landlock: Add support for KUnit tests 2024-02-27 11:21:45 +01:00
common.h landlock: Add support for KUnit tests 2024-02-27 11:21:45 +01:00
cred.c LSM: Identify modules by more than name 2023-11-12 22:54:42 -05:00
cred.h landlock: Format with clang-format 2022-05-09 12:31:10 +02:00
fs.c landlock: Add support for KUnit tests 2024-02-27 11:21:45 +01:00
fs.h landlock: Support file truncation 2022-10-19 09:01:44 +02:00
Kconfig landlock: Add support for KUnit tests 2024-02-27 11:21:45 +01:00
limits.h landlock: Support network rules with TCP bind and connect 2023-10-26 21:07:15 +02:00
Makefile landlock: Support network rules with TCP bind and connect 2023-10-26 21:07:15 +02:00
net.c LSM: Identify modules by more than name 2023-11-12 22:54:42 -05:00
net.h landlock: Support network rules with TCP bind and connect 2023-10-26 21:07:15 +02:00
object.c landlock: Format with clang-format 2022-05-09 12:31:10 +02:00
object.h landlock: Format with clang-format 2022-05-09 12:31:10 +02:00
ptrace.c LSM: Identify modules by more than name 2023-11-12 22:54:42 -05:00
ptrace.h landlock: Add ptrace restrictions 2021-04-22 12:22:10 -07:00
ruleset.c landlock: Optimize the number of calls to get_access_mask slightly 2024-01-03 12:43:17 +01:00
ruleset.h landlock: Support network rules with TCP bind and connect 2023-10-26 21:07:15 +02:00
setup.c LSM: Identify modules by more than name 2023-11-12 22:54:42 -05:00
setup.h LSM: Identify modules by more than name 2023-11-12 22:54:42 -05:00
syscalls.c landlock: Warn once if a Landlock action is requested while disabled 2024-03-07 11:29:46 +01:00