linux: Remove user-space probe support

From the kernels' documentation:

> Uprobes is the user-space counterpart to kprobes: they
> enable instrumentation applications (such as 'perf probe')
> to establish unintrusive probes in user-space binaries and
> libraries, by executing handler functions when the probes
> are hit by user-space applications.
>
> ( These probes come in the form of single-byte breakpoints,
> managed by the kernel and kept transparent to the probed
> application. )

To the best of the authors' understanding, no application on IPFire
needs this functionality, and given its abuse potential, we should
probably not enable it.

As expected, strace functionality is not impaired by this.

Signed-off-by: Peter Müller <peter.mueller@ipfire.org>

diff --git a/config/kernel/kernel.config.aarch64-ipfire b/config/kernel/kernel.config.aarch64-ipfire
index 836e2b15f74aff0a0cd6e9d2a487415200c85574..76dbafc5f65bb0877c22364cf023f587ae011b87 100644 (file)
--- a/config/kernel/kernel.config.aarch64-ipfire
+++ b/config/kernel/kernel.config.aarch64-ipfire
@@ -645,7 +645,6 @@ CONFIG_CRYPTO_AES_ARM64_BS=m
 # CONFIG_KPROBES is not set
 CONFIG_JUMP_LABEL=y
 CONFIG_STATIC_KEYS_SELFTEST=y
-CONFIG_UPROBES=y
 CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
 CONFIG_HAVE_KPROBES=y
 CONFIG_HAVE_KRETPROBES=y
@@ -8154,9 +8153,7 @@ CONFIG_TRACER_SNAPSHOT=y
 CONFIG_BRANCH_PROFILE_NONE=y
 # CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
 # CONFIG_BLK_DEV_IO_TRACE is not set
-CONFIG_UPROBE_EVENTS=y
-CONFIG_DYNAMIC_EVENTS=y
-CONFIG_PROBE_EVENTS=y
+# CONFIG_UPROBE_EVENTS is not set
 CONFIG_FTRACE_MCOUNT_RECORD=y
 CONFIG_FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY=y
 # CONFIG_SYNTH_EVENTS is not set

diff --git a/config/kernel/kernel.config.armv6l-ipfire b/config/kernel/kernel.config.armv6l-ipfire
index ae611fc6f1208c7d3c2912cf499f10b149f32d41..28f4ef3aab4c2986126c616eb3ba16f64938c743 100644 (file)
--- a/config/kernel/kernel.config.armv6l-ipfire
+++ b/config/kernel/kernel.config.armv6l-ipfire
@@ -738,7 +738,6 @@ CONFIG_AS_VFP_VMRS_FPINST=y
 # CONFIG_KPROBES is not set
 CONFIG_JUMP_LABEL=y
 CONFIG_STATIC_KEYS_SELFTEST=y
-CONFIG_UPROBES=y
 CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
 CONFIG_ARCH_USE_BUILTIN_BSWAP=y
 CONFIG_HAVE_KPROBES=y
@@ -8129,9 +8128,7 @@ CONFIG_BRANCH_PROFILE_NONE=y
 # CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
 # CONFIG_PROFILE_ALL_BRANCHES is not set
 # CONFIG_BLK_DEV_IO_TRACE is not set
-CONFIG_UPROBE_EVENTS=y
-CONFIG_DYNAMIC_EVENTS=y
-CONFIG_PROBE_EVENTS=y
+# CONFIG_UPROBE_EVENTS is not set
 CONFIG_FTRACE_MCOUNT_RECORD=y
 CONFIG_FTRACE_MCOUNT_USE_RECORDMCOUNT=y
 # CONFIG_SYNTH_EVENTS is not set

diff --git a/config/kernel/kernel.config.x86_64-ipfire b/config/kernel/kernel.config.x86_64-ipfire
index d005f98d4be7748535e6683237fd313dfb00b249..bb4655a9920f6dad38ddea8eb78b8b82551c0c60 100644 (file)
--- a/config/kernel/kernel.config.x86_64-ipfire
+++ b/config/kernel/kernel.config.x86_64-ipfire
@@ -671,7 +671,6 @@ CONFIG_GENERIC_ENTRY=y
 CONFIG_JUMP_LABEL=y
 CONFIG_STATIC_KEYS_SELFTEST=y
 # CONFIG_STATIC_CALL_SELFTEST is not set
-CONFIG_UPROBES=y
 CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
 CONFIG_ARCH_USE_BUILTIN_BSWAP=y
 CONFIG_USER_RETURN_NOTIFIER=y
@@ -7594,9 +7593,7 @@ CONFIG_TRACER_SNAPSHOT=y
 CONFIG_BRANCH_PROFILE_NONE=y
 # CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
 # CONFIG_BLK_DEV_IO_TRACE is not set
-CONFIG_UPROBE_EVENTS=y
-CONFIG_DYNAMIC_EVENTS=y
-CONFIG_PROBE_EVENTS=y
+# CONFIG_UPROBE_EVENTS is not set
 CONFIG_FTRACE_MCOUNT_RECORD=y
 CONFIG_FTRACE_MCOUNT_USE_CC=y
 # CONFIG_SYNTH_EVENTS is not set