diff options
Diffstat (limited to 'kernel/configs/hardening.config')
| -rw-r--r-- | kernel/configs/hardening.config | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/configs/hardening.config b/kernel/configs/hardening.config index dd7c32fb5ac1..64caaf997fc0 100644 --- a/kernel/configs/hardening.config +++ b/kernel/configs/hardening.config @@ -60,9 +60,15 @@ CONFIG_LIST_HARDENED=y # Initialize all heap variables to zero on allocation. CONFIG_INIT_ON_ALLOC_DEFAULT_ON=y +# Initialize all heap variables to zero on free to reduce stale data lifetime. +CONFIG_INIT_ON_FREE_DEFAULT_ON=y + # Initialize all stack variables to zero on function entry. CONFIG_INIT_STACK_ALL_ZERO=y +# Wipe kernel stack after syscall completion to reduce stale data lifetime. +CONFIG_KSTACK_ERASE=y + # Wipe RAM at reboot via EFI. For more details, see: # https://trustedcomputinggroup.org/resource/pc-client-work-group-platform-reset-attack-mitigation-specification/ # https://bugzilla.redhat.com/show_bug.cgi?id=1532058 |