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[RFC] linux: Enable seccomp filter on ARM

Message ID 52660e04-d262-68ab-c42a-429821688153@ipfire.org
State Accepted
Commit 16eb2d5379757076c23b4cdd14a8af595fd9d1bc
Headers
Series [RFC] linux: Enable seccomp filter on ARM |

Commit Message

Peter Müller Sept. 19, 2022, 12:35 p.m. UTC 
  Since last time we checked, the kernel's security features on ARM have
improved notably (see CONFIG_RANDOMIZE_BASE discussion). This patch
therefore proposes to give the seccomp filter on both 32- and 64-bit ARM
another try, since it provides significant security benefit to
applications using it.

Due to operational constraints, rootfile changes have been omitted, and
will be conducted, should this patch be approved.

Note to future self: Once this patch is approved, applications using
seccomp (OpenSSH, Tor) need to be updated/shipped on ARM.

Fixes: #12366
Fixes: #12370
Cc: Arne Fitzenreiter <arne.fitzenreiter@ipfire.org>
Signed-off-by: Peter Müller <peter.mueller@ipfire.org>
---
 config/kernel/kernel.config.aarch64-ipfire | 4 +++-
 config/kernel/kernel.config.armv6l-ipfire  | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)
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Patch

diff --git a/config/kernel/kernel.config.aarch64-ipfire b/config/kernel/kernel.config.aarch64-ipfire
index b557f4cf3..62ef1316a 100644
--- a/config/kernel/kernel.config.aarch64-ipfire
+++ b/config/kernel/kernel.config.aarch64-ipfire
@@ -683,7 +683,9 @@  CONFIG_HAVE_CMPXCHG_DOUBLE=y
 CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION=y
 CONFIG_HAVE_ARCH_SECCOMP=y
 CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
-# CONFIG_SECCOMP is not set
+CONFIG_SECCOMP=y
+CONFIG_SECCOMP_FILTER=y
+# CONFIG_SECCOMP_CACHE_DEBUG is not set
 CONFIG_HAVE_ARCH_STACKLEAK=y
 CONFIG_HAVE_STACKPROTECTOR=y
 CONFIG_STACKPROTECTOR=y
diff --git a/config/kernel/kernel.config.armv6l-ipfire b/config/kernel/kernel.config.armv6l-ipfire
index b8e0ee70c..47baada15 100644
--- a/config/kernel/kernel.config.armv6l-ipfire
+++ b/config/kernel/kernel.config.armv6l-ipfire
@@ -767,7 +767,9 @@  CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
 CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
 CONFIG_HAVE_ARCH_SECCOMP=y
 CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
-# CONFIG_SECCOMP is not set
+CONFIG_SECCOMP=y
+CONFIG_SECCOMP_FILTER=y
+# CONFIG_SECCOMP_CACHE_DEBUG is not set
 CONFIG_HAVE_STACKPROTECTOR=y
 CONFIG_STACKPROTECTOR=y
 CONFIG_STACKPROTECTOR_STRONG=y