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kernel-hardening-checker
Commit f00f213d by Alexander Popov
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Check the kernel.unprivileged_bpf_disabled sysctl

parent bfb9a61d
Showing with 1 additions and 1 deletions
kconfig_hardened_check/checks.py
...@@ -579,7 +579,6 @@ def add_sysctl_checks(l, arch): ...@@ -579,7 +579,6 @@ def add_sysctl_checks(l, arch):
# kernel.kptr_restrict=2 (or 1?) # kernel.kptr_restrict=2 (or 1?)
# kernel.yama.ptrace_scope=3 # kernel.yama.ptrace_scope=3
# what about bpf_jit_enable? # what about bpf_jit_enable?
# kernel.unprivileged_bpf_disabled=1
# vm.unprivileged_userfaultfd=0 # vm.unprivileged_userfaultfd=0
# (at first, it disabled unprivileged userfaultfd, # (at first, it disabled unprivileged userfaultfd,
# and since v5.11 it enables unprivileged userfaultfd for user-mode only) # and since v5.11 it enables unprivileged userfaultfd for user-mode only)
...@@ -610,3 +609,4 @@ def add_sysctl_checks(l, arch): ...@@ -610,3 +609,4 @@ def add_sysctl_checks(l, arch):
l += [SysctlCheck('cut_attack_surface', 'kspp', 'kernel.kexec_load_disabled', '1')] 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', 'user.max_user_namespaces', '0')]
l += [SysctlCheck('cut_attack_surface', 'kspp', 'dev.tty.ldisc_autoload', '0')] l += [SysctlCheck('cut_attack_surface', 'kspp', 'dev.tty.ldisc_autoload', '0')]
l += [SysctlCheck('cut_attack_surface', 'kspp', 'kernel.unprivileged_bpf_disabled', '1')]
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