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-rw-r--r--arch/Kconfig30
-rw-r--r--arch/arm/Kconfig15
-rw-r--r--arch/arm64/Kconfig13
-rw-r--r--arch/csky/Kconfig13
-rw-r--r--arch/microblaze/Kconfig18
-rw-r--r--arch/mips/Kconfig17
-rw-r--r--arch/parisc/Kconfig16
-rw-r--r--arch/powerpc/Kconfig17
-rw-r--r--arch/riscv/Kconfig13
-rw-r--r--arch/s390/Kconfig17
-rw-r--r--arch/sh/Kconfig16
-rw-r--r--arch/sparc/Kconfig18
-rw-r--r--arch/um/Kconfig16
-rw-r--r--arch/x86/Kconfig16
-rw-r--r--arch/xtensa/Kconfig14
15 files changed, 33 insertions, 216 deletions
diff --git a/arch/Kconfig b/arch/Kconfig
index af14a567b493..21a3675a7a3a 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -444,10 +444,23 @@ config ARCH_WANT_OLD_COMPAT_IPC
select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
bool
+config HAVE_ARCH_SECCOMP
+ bool
+ help
+ An arch should select this symbol to support seccomp mode 1 (the fixed
+ syscall policy), and must provide an overrides for __NR_seccomp_sigreturn,
+ and compat syscalls if the asm-generic/seccomp.h defaults need adjustment:
+ - __NR_seccomp_read_32
+ - __NR_seccomp_write_32
+ - __NR_seccomp_exit_32
+ - __NR_seccomp_sigreturn_32
+
config HAVE_ARCH_SECCOMP_FILTER
bool
+ select HAVE_ARCH_SECCOMP
help
An arch should select this symbol if it provides all of these things:
+ - all the requirements for HAVE_ARCH_SECCOMP
- syscall_get_arch()
- syscall_get_arguments()
- syscall_rollback()
@@ -458,6 +471,23 @@ config HAVE_ARCH_SECCOMP_FILTER
results in the system call being skipped immediately.
- seccomp syscall wired up
+config SECCOMP
+ prompt "Enable seccomp to safely execute untrusted bytecode"
+ def_bool y
+ depends on HAVE_ARCH_SECCOMP
+ help
+ This kernel feature is useful for number crunching applications
+ that may need to handle untrusted bytecode during their
+ execution. By using pipes or other transports made available
+ to the process as file descriptors supporting the read/write
+ syscalls, it's possible to isolate those applications in their
+ own address space using seccomp. Once seccomp is enabled via
+ prctl(PR_SET_SECCOMP) or the seccomp() syscall, it cannot be
+ disabled and the task is only allowed to execute a few safe
+ syscalls defined by each seccomp mode.
+
+ If unsure, say Y.
+
config SECCOMP_FILTER
def_bool y
depends on HAVE_ARCH_SECCOMP_FILTER && SECCOMP && NET
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index e00d94b16658..e26c19a16284 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -67,6 +67,7 @@ config ARM
select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU
select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU
select HAVE_ARCH_MMAP_RND_BITS if MMU
+ select HAVE_ARCH_SECCOMP
select HAVE_ARCH_SECCOMP_FILTER if AEABI && !OABI_COMPAT
select HAVE_ARCH_THREAD_STRUCT_WHITELIST
select HAVE_ARCH_TRACEHOOK
@@ -1617,20 +1618,6 @@ config UACCESS_WITH_MEMCPY
However, if the CPU data cache is using a write-allocate mode,
this option is unlikely to provide any performance gain.
-config SECCOMP
- bool
- prompt "Enable seccomp to safely compute untrusted bytecode"
- help
- This kernel feature is useful for number crunching applications
- that may need to compute untrusted bytecode during their
- execution. By using pipes or other transports made available to
- the process as file descriptors supporting the read/write
- syscalls, it's possible to isolate those applications in
- their own address space using seccomp. Once seccomp is
- enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
- and the task is only allowed to execute a few safe syscalls
- defined by each seccomp mode.
-
config PARAVIRT
bool "Enable paravirtualization code"
help
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 6d232837cbee..98c4e34cbec1 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1033,19 +1033,6 @@ config ARCH_ENABLE_SPLIT_PMD_PTLOCK
config CC_HAVE_SHADOW_CALL_STACK
def_bool $(cc-option, -fsanitize=shadow-call-stack -ffixed-x18)
-config SECCOMP
- bool "Enable seccomp to safely compute untrusted bytecode"
- help
- This kernel feature is useful for number crunching applications
- that may need to compute untrusted bytecode during their
- execution. By using pipes or other transports made available to
- the process as file descriptors supporting the read/write
- syscalls, it's possible to isolate those applications in
- their own address space using seccomp. Once seccomp is
- enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
- and the task is only allowed to execute a few safe syscalls
- defined by each seccomp mode.
-
config PARAVIRT
bool "Enable paravirtualization code"
help
diff --git a/arch/csky/Kconfig b/arch/csky/Kconfig
index 3d5afb5f5685..7f424c85772c 100644
--- a/arch/csky/Kconfig
+++ b/arch/csky/Kconfig
@@ -309,16 +309,3 @@ endmenu
source "arch/csky/Kconfig.platforms"
source "kernel/Kconfig.hz"
-
-config SECCOMP
- bool "Enable seccomp to safely compute untrusted bytecode"
- help
- This kernel feature is useful for number crunching applications
- that may need to compute untrusted bytecode during their
- execution. By using pipes or other transports made available to
- the process as file descriptors supporting the read/write
- syscalls, it's possible to isolate those applications in
- their own address space using seccomp. Once seccomp is
- enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
- and the task is only allowed to execute a few safe syscalls
- defined by each seccomp mode.
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index d262ac0c8714..37bd6a5f38fb 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -26,6 +26,7 @@ config MICROBLAZE
select GENERIC_SCHED_CLOCK
select HAVE_ARCH_HASH
select HAVE_ARCH_KGDB
+ select HAVE_ARCH_SECCOMP
select HAVE_DEBUG_KMEMLEAK
select HAVE_DMA_CONTIGUOUS
select HAVE_DYNAMIC_FTRACE
@@ -120,23 +121,6 @@ config CMDLINE_FORCE
Set this to have arguments from the default kernel command string
override those passed by the boot loader.
-config SECCOMP
- bool "Enable seccomp to safely compute untrusted bytecode"
- depends on PROC_FS
- default y
- help
- This kernel feature is useful for number crunching applications
- that may need to compute untrusted bytecode during their
- execution. By using pipes or other transports made available to
- the process as file descriptors supporting the read/write
- syscalls, it's possible to isolate those applications in
- their own address space using seccomp. Once seccomp is
- enabled via /proc/<pid>/seccomp, it cannot be disabled
- and the task is only allowed to execute a few safe syscalls
- defined by each seccomp mode.
-
- If unsure, say Y. Only embedded should say N here.
-
endmenu
menu "Kernel features"
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index c95fa3a2484c..5f88a8fc11fc 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -3004,23 +3004,6 @@ config PHYSICAL_START
specified in the "crashkernel=YM@XM" command line boot parameter
passed to the panic-ed kernel).
-config SECCOMP
- bool "Enable seccomp to safely compute untrusted bytecode"
- depends on PROC_FS
- default y
- help
- This kernel feature is useful for number crunching applications
- that may need to compute untrusted bytecode during their
- execution. By using pipes or other transports made available to
- the process as file descriptors supporting the read/write
- syscalls, it's possible to isolate those applications in
- their own address space using seccomp. Once seccomp is
- enabled via /proc/<pid>/seccomp, it cannot be disabled
- and the task is only allowed to execute a few safe syscalls
- defined by each seccomp mode.
-
- If unsure, say Y. Only embedded should say N here.
-
config MIPS_O32_FP64_SUPPORT
bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
depends on 32BIT || MIPS32_O32
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 3b0f53dd70bc..cd4afe1e7a6c 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -378,19 +378,3 @@ endmenu
source "drivers/parisc/Kconfig"
-
-config SECCOMP
- def_bool y
- prompt "Enable seccomp to safely compute untrusted bytecode"
- help
- This kernel feature is useful for number crunching applications
- that may need to compute untrusted bytecode during their
- execution. By using pipes or other transports made available to
- the process as file descriptors supporting the read/write
- syscalls, it's possible to isolate those applications in
- their own address space using seccomp. Once seccomp is
- enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
- and the task is only allowed to execute a few safe syscalls
- defined by each seccomp mode.
-
- If unsure, say Y. Only embedded should say N here.
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 1f48bbfb3ce9..136fe860caef 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -934,23 +934,6 @@ config ARCH_WANTS_FREEZER_CONTROL
source "kernel/power/Kconfig"
-config SECCOMP
- bool "Enable seccomp to safely compute untrusted bytecode"
- depends on PROC_FS
- default y
- help
- This kernel feature is useful for number crunching applications
- that may need to compute untrusted bytecode during their
- execution. By using pipes or other transports made available to
- the process as file descriptors supporting the read/write
- syscalls, it's possible to isolate those applications in
- their own address space using seccomp. Once seccomp is
- enabled via /proc/<pid>/seccomp, it cannot be disabled
- and the task is only allowed to execute a few safe syscalls
- defined by each seccomp mode.
-
- If unsure, say Y. Only embedded should say N here.
-
config PPC_MEM_KEYS
prompt "PowerPC Memory Protection Keys"
def_bool y
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index df18372861d8..c456b558fab9 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -333,19 +333,6 @@ menu "Kernel features"
source "kernel/Kconfig.hz"
-config SECCOMP
- bool "Enable seccomp to safely compute untrusted bytecode"
- help
- This kernel feature is useful for number crunching applications
- that may need to compute untrusted bytecode during their
- execution. By using pipes or other transports made available to
- the process as file descriptors supporting the read/write
- syscalls, it's possible to isolate those applications in
- their own address space using seccomp. Once seccomp is
- enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
- and the task is only allowed to execute a few safe syscalls
- defined by each seccomp mode.
-
config RISCV_SBI_V01
bool "SBI v0.1 support"
default y
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 3d86e12e8e3c..7f7b40ec699e 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -791,23 +791,6 @@ config CRASH_DUMP
endmenu
-config SECCOMP
- def_bool y
- prompt "Enable seccomp to safely compute untrusted bytecode"
- depends on PROC_FS
- help
- This kernel feature is useful for number crunching applications
- that may need to compute untrusted bytecode during their
- execution. By using pipes or other transports made available to
- the process as file descriptors supporting the read/write
- syscalls, it's possible to isolate those applications in
- their own address space using seccomp. Once seccomp is
- enabled via /proc/<pid>/seccomp, it cannot be disabled
- and the task is only allowed to execute a few safe syscalls
- defined by each seccomp mode.
-
- If unsure, say Y.
-
config CCW
def_bool y
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index d20927128fce..18278152c91c 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -600,22 +600,6 @@ config PHYSICAL_START
where the fail safe kernel needs to run at a different address
than the panic-ed kernel.
-config SECCOMP
- bool "Enable seccomp to safely compute untrusted bytecode"
- depends on PROC_FS
- help
- This kernel feature is useful for number crunching applications
- that may need to compute untrusted bytecode during their
- execution. By using pipes or other transports made available to
- the process as file descriptors supporting the read/write
- syscalls, it's possible to isolate those applications in
- their own address space using seccomp. Once seccomp is
- enabled via prctl, it cannot be disabled and the task is only
- allowed to execute a few safe syscalls defined by each seccomp
- mode.
-
- If unsure, say N.
-
config SMP
bool "Symmetric multi-processing support"
depends on SYS_SUPPORTS_SMP
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index efeff2c896a5..d62ce83cf009 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -23,6 +23,7 @@ config SPARC
select HAVE_OPROFILE
select HAVE_ARCH_KGDB if !SMP || SPARC64
select HAVE_ARCH_TRACEHOOK
+ select HAVE_ARCH_SECCOMP if SPARC64
select HAVE_EXIT_THREAD
select HAVE_PCI
select SYSCTL_EXCEPTION_TRACE
@@ -226,23 +227,6 @@ config EARLYFB
help
Say Y here to enable a faster early framebuffer boot console.
-config SECCOMP
- bool "Enable seccomp to safely compute untrusted bytecode"
- depends on SPARC64 && PROC_FS
- default y
- help
- This kernel feature is useful for number crunching applications
- that may need to compute untrusted bytecode during their
- execution. By using pipes or other transports made available to
- the process as file descriptors supporting the read/write
- syscalls, it's possible to isolate those applications in
- their own address space using seccomp. Once seccomp is
- enabled via /proc/<pid>/seccomp, it cannot be disabled
- and the task is only allowed to execute a few safe syscalls
- defined by each seccomp mode.
-
- If unsure, say Y. Only embedded should say N here.
-
config HOTPLUG_CPU
bool "Support for hot-pluggable CPUs"
depends on SPARC64 && SMP
diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index eb51fec75948..d49f471b02e3 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -173,22 +173,6 @@ config PGTABLE_LEVELS
default 3 if 3_LEVEL_PGTABLES
default 2
-config SECCOMP
- def_bool y
- prompt "Enable seccomp to safely compute untrusted bytecode"
- help
- This kernel feature is useful for number crunching applications
- that may need to compute untrusted bytecode during their
- execution. By using pipes or other transports made available to
- the process as file descriptors supporting the read/write
- syscalls, it's possible to isolate those applications in
- their own address space using seccomp. Once seccomp is
- enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
- and the task is only allowed to execute a few safe syscalls
- defined by each seccomp mode.
-
- If unsure, say Y.
-
config UML_TIME_TRAVEL_SUPPORT
bool
prompt "Support time-travel mode (e.g. for test execution)"
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 7101ac64bb20..1ab22869a765 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1968,22 +1968,6 @@ config EFI_MIXED
If unsure, say N.
-config SECCOMP
- def_bool y
- prompt "Enable seccomp to safely compute untrusted bytecode"
- help
- This kernel feature is useful for number crunching applications
- that may need to compute untrusted bytecode during their
- execution. By using pipes or other transports made available to
- the process as file descriptors supporting the read/write
- syscalls, it's possible to isolate those applications in
- their own address space using seccomp. Once seccomp is
- enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
- and the task is only allowed to execute a few safe syscalls
- defined by each seccomp mode.
-
- If unsure, say Y. Only embedded should say N here.
-
source "kernel/Kconfig.hz"
config KEXEC
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index e997e0119c02..d8a29dc5a284 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -217,20 +217,6 @@ config HOTPLUG_CPU
Say N if you want to disable CPU hotplug.
-config SECCOMP
- bool
- prompt "Enable seccomp to safely compute untrusted bytecode"
- help
- This kernel feature is useful for number crunching applications
- that may need to compute untrusted bytecode during their
- execution. By using pipes or other transports made available to
- the process as file descriptors supporting the read/write
- syscalls, it's possible to isolate those applications in
- their own address space using seccomp. Once seccomp is
- enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
- and the task is only allowed to execute a few safe syscalls
- defined by each seccomp mode.
-
config FAST_SYSCALL_XTENSA
bool "Enable fast atomic syscalls"
default n