From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter =?utf-8?q?M=C3=BCller?= To: development@lists.ipfire.org Subject: [PATCH] kernel: enable CONFIG_GCC_PLUGIN_STACKLEAK Date: Tue, 09 Jun 2020 17:53:26 +0000 Message-ID: <286f4067-f7e8-19a2-f45d-204e5e9a6fb1@ipfire.org> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="===============8270727422080611293==" List-Id: --===============8270727422080611293== Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Quoted from https://kernsec.org/wiki/index.php/Kernel_Self_Protection_Project= /Recommended_Settings: > # Wipe stack contents on syscall exit (reduces stale data lifetime in stack) > CONFIG_GCC_PLUGIN_STACKLEAK=3Dy Not sure what performance penalities this introduces in real life... Fixes: #12382 Cc: Arne Fitzenreiter Signed-off-by: Peter M=C3=BCller --- config/kernel/kernel.config.aarch64-ipfire | 1 + config/kernel/kernel.config.armv5tel-ipfire-multi | 1 + config/kernel/kernel.config.i586-ipfire | 1 + config/kernel/kernel.config.x86_64-ipfire | 1 + 4 files changed, 4 insertions(+) diff --git a/config/kernel/kernel.config.aarch64-ipfire b/config/kernel/kerne= l.config.aarch64-ipfire index e0f2f6df8..f4240e0ae 100644 --- a/config/kernel/kernel.config.aarch64-ipfire +++ b/config/kernel/kernel.config.aarch64-ipfire @@ -256,6 +256,7 @@ CONFIG_HAVE_GCC_PLUGINS=3Dy CONFIG_GCC_PLUGINS=3Dy # CONFIG_GCC_PLUGIN_CYC_COMPLEXITY is not set CONFIG_GCC_PLUGIN_LATENT_ENTROPY=3Dy +CONFIG_GCC_PLUGIN_STACKLEAK=3Dy CONFIG_GCC_PLUGIN_STRUCTLEAK=3Dy CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF_ALL=3Dy # CONFIG_GCC_PLUGIN_STRUCTLEAK_VERBOSE is not set diff --git a/config/kernel/kernel.config.armv5tel-ipfire-multi b/config/kerne= l/kernel.config.armv5tel-ipfire-multi index 15183300f..2bcfbdbdd 100644 --- a/config/kernel/kernel.config.armv5tel-ipfire-multi +++ b/config/kernel/kernel.config.armv5tel-ipfire-multi @@ -252,6 +252,7 @@ CONFIG_HAVE_GCC_PLUGINS=3Dy CONFIG_GCC_PLUGINS=3Dy # CONFIG_GCC_PLUGIN_CYC_COMPLEXITY is not set CONFIG_GCC_PLUGIN_LATENT_ENTROPY=3Dy +CONFIG_GCC_PLUGIN_STACKLEAK=3Dy CONFIG_GCC_PLUGIN_STRUCTLEAK=3Dy CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF_ALL=3Dy # CONFIG_GCC_PLUGIN_STRUCTLEAK_VERBOSE is not set diff --git a/config/kernel/kernel.config.i586-ipfire b/config/kernel/kernel.c= onfig.i586-ipfire index 578931497..a72cde41a 100644 --- a/config/kernel/kernel.config.i586-ipfire +++ b/config/kernel/kernel.config.i586-ipfire @@ -283,6 +283,7 @@ CONFIG_HAVE_GCC_PLUGINS=3Dy CONFIG_GCC_PLUGINS=3Dy # CONFIG_GCC_PLUGIN_CYC_COMPLEXITY is not set CONFIG_GCC_PLUGIN_LATENT_ENTROPY=3Dy +CONFIG_GCC_PLUGIN_STACKLEAK=3Dy CONFIG_GCC_PLUGIN_STRUCTLEAK=3Dy CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF_ALL=3Dy # CONFIG_GCC_PLUGIN_STRUCTLEAK_VERBOSE is not set diff --git a/config/kernel/kernel.config.x86_64-ipfire b/config/kernel/kernel= .config.x86_64-ipfire index 6a5fbbfe9..cd116d780 100644 --- a/config/kernel/kernel.config.x86_64-ipfire +++ b/config/kernel/kernel.config.x86_64-ipfire @@ -293,6 +293,7 @@ CONFIG_HAVE_GCC_PLUGINS=3Dy CONFIG_GCC_PLUGINS=3Dy # CONFIG_GCC_PLUGIN_CYC_COMPLEXITY is not set CONFIG_GCC_PLUGIN_LATENT_ENTROPY=3Dy +CONFIG_GCC_PLUGIN_STACKLEAK=3Dy CONFIG_GCC_PLUGIN_STRUCTLEAK=3Dy CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF_ALL=3Dy # CONFIG_GCC_PLUGIN_STRUCTLEAK_VERBOSE is not set --=20 2.26.2 --===============8270727422080611293==--