From bfb9a61d90a5198b08380b7fb4383426528956f9 Mon Sep 17 00:00:00 2001 From: Alexander Popov Date: Mon, 24 Jul 2023 00:24:06 +0300 Subject: [PATCH] Check the dev.tty.ldisc_autoload sysctl --- kconfig_hardened_check/checks.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kconfig_hardened_check/checks.py b/kconfig_hardened_check/checks.py index e06146a..fa8cdfa 100644 --- a/kconfig_hardened_check/checks.py +++ b/kconfig_hardened_check/checks.py @@ -584,7 +584,6 @@ def add_sysctl_checks(l, arch): # (at first, it disabled unprivileged userfaultfd, # and since v5.11 it enables unprivileged userfaultfd for user-mode only) # vm.mmap_min_addr has a good value -# dev.tty.ldisc_autoload=0 # fs.protected_symlinks=1 # fs.protected_hardlinks=1 # fs.protected_fifos=2 @@ -610,3 +609,4 @@ def add_sysctl_checks(l, arch): l += [SysctlCheck('cut_attack_surface', 'kspp', 'kernel.perf_event_paranoid', '3')] # with a custom patch, see https://lwn.net/Articles/696216/ l += [SysctlCheck('cut_attack_surface', 'kspp', 'kernel.kexec_load_disabled', '1')] l += [SysctlCheck('cut_attack_surface', 'kspp', 'user.max_user_namespaces', '0')] + l += [SysctlCheck('cut_attack_surface', 'kspp', 'dev.tty.ldisc_autoload', '0')] -- 2.31.1