From 530ff23a8e46814a1be4a516c707d3b0fb292186 Mon Sep 17 00:00:00 2001 From: "Dmitry V. Levin" Date: Mon, 18 Mar 2019 02:29:48 +0300 Subject: Move EM_NDS32 to uapi/linux/elf-em.h This should never have been defined in the arch tree to begin with, and now uapi/linux/audit.h header is going to use EM_NDS32 in order to define AUDIT_ARCH_NDS32 which is needed to implement syscall_get_arch() which in turn is required to extend the generic ptrace API with PTRACE_GET_SYSCALL_INFO request. Acked-by: Paul Moore Acked-by: Vincent Chen Acked-by: Greentime Hu Cc: Elvira Khabirova Cc: Eugene Syromyatnikov Cc: Oleg Nesterov Cc: Andy Lutomirski Cc: linux-audit@redhat.com Signed-off-by: Dmitry V. Levin Signed-off-by: Paul Moore --- arch/nds32/include/asm/elf.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'arch/nds32') diff --git a/arch/nds32/include/asm/elf.h b/arch/nds32/include/asm/elf.h index 95f3ea253e4c..02250626b9f0 100644 --- a/arch/nds32/include/asm/elf.h +++ b/arch/nds32/include/asm/elf.h @@ -10,14 +10,13 @@ #include #include +#include typedef unsigned long elf_greg_t; typedef unsigned long elf_freg_t[3]; extern unsigned int elf_hwcap; -#define EM_NDS32 167 - #define R_NDS32_NONE 0 #define R_NDS32_16_RELA 19 #define R_NDS32_32_RELA 20 -- cgit v1.2.3-58-ga151 From fa562447e154334523daa44c0b60625d71a345f5 Mon Sep 17 00:00:00 2001 From: "Dmitry V. Levin" Date: Mon, 18 Mar 2019 02:29:57 +0300 Subject: nds32: define syscall_get_arch() syscall_get_arch() is required to be implemented on all architectures in addition to already implemented syscall_get_nr(), syscall_get_arguments(), syscall_get_error(), and syscall_get_return_value() functions in order to extend the generic ptrace API with PTRACE_GET_SYSCALL_INFO request. Acked-by: Paul Moore Acked-by: Vincent Chen Acked-by: Greentime Hu Cc: Elvira Khabirova Cc: Eugene Syromyatnikov Cc: Oleg Nesterov Cc: Andy Lutomirski Cc: linux-audit@redhat.com Signed-off-by: Dmitry V. Levin Signed-off-by: Paul Moore --- arch/nds32/include/asm/syscall.h | 9 +++++++++ include/uapi/linux/audit.h | 2 ++ 2 files changed, 11 insertions(+) (limited to 'arch/nds32') diff --git a/arch/nds32/include/asm/syscall.h b/arch/nds32/include/asm/syscall.h index f7e5e86765fe..cc56a3962f8b 100644 --- a/arch/nds32/include/asm/syscall.h +++ b/arch/nds32/include/asm/syscall.h @@ -5,6 +5,7 @@ #ifndef _ASM_NDS32_SYSCALL_H #define _ASM_NDS32_SYSCALL_H 1 +#include #include struct task_struct; struct pt_regs; @@ -185,4 +186,12 @@ void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, memcpy(®s->uregs[0] + i, args, n * sizeof(args[0])); } + +static inline int +syscall_get_arch(void) +{ + return IS_ENABLED(CONFIG_CPU_BIG_ENDIAN) + ? AUDIT_ARCH_NDS32BE : AUDIT_ARCH_NDS32; +} + #endif /* _ASM_NDS32_SYSCALL_H */ diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h index fc94e74c8b77..fb0529da4d49 100644 --- a/include/uapi/linux/audit.h +++ b/include/uapi/linux/audit.h @@ -401,6 +401,8 @@ enum { #define AUDIT_ARCH_MIPSEL64 (EM_MIPS|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) #define AUDIT_ARCH_MIPSEL64N32 (EM_MIPS|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE|\ __AUDIT_ARCH_CONVENTION_MIPS64_N32) +#define AUDIT_ARCH_NDS32 (EM_NDS32|__AUDIT_ARCH_LE) +#define AUDIT_ARCH_NDS32BE (EM_NDS32) #define AUDIT_ARCH_OPENRISC (EM_OPENRISC) #define AUDIT_ARCH_PARISC (EM_PARISC) #define AUDIT_ARCH_PARISC64 (EM_PARISC|__AUDIT_ARCH_64BIT) -- cgit v1.2.3-58-ga151 From 16add411645cff83360086e102daa67b25f1e39a Mon Sep 17 00:00:00 2001 From: "Dmitry V. Levin" Date: Mon, 18 Mar 2019 02:30:18 +0300 Subject: syscall_get_arch: add "struct task_struct *" argument This argument is required to extend the generic ptrace API with PTRACE_GET_SYSCALL_INFO request: syscall_get_arch() is going to be called from ptrace_request() along with syscall_get_nr(), syscall_get_arguments(), syscall_get_error(), and syscall_get_return_value() functions with a tracee as their argument. The primary intent is that the triple (audit_arch, syscall_nr, arg1..arg6) should describe what system call is being called and what its arguments are. Reverts: 5e937a9ae913 ("syscall_get_arch: remove useless function arguments") Reverts: 1002d94d3076 ("syscall.h: fix doc text for syscall_get_arch()") Reviewed-by: Andy Lutomirski # for x86 Reviewed-by: Palmer Dabbelt Acked-by: Paul Moore Acked-by: Paul Burton # MIPS parts Acked-by: Michael Ellerman (powerpc) Acked-by: Kees Cook # seccomp parts Acked-by: Mark Salter # for the c6x bit Cc: Elvira Khabirova Cc: Eugene Syromyatnikov Cc: Oleg Nesterov Cc: x86@kernel.org Cc: linux-alpha@vger.kernel.org Cc: linux-snps-arc@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-c6x-dev@linux-c6x.org Cc: uclinux-h8-devel@lists.sourceforge.jp Cc: linux-hexagon@vger.kernel.org Cc: linux-ia64@vger.kernel.org Cc: linux-m68k@lists.linux-m68k.org Cc: linux-mips@vger.kernel.org Cc: nios2-dev@lists.rocketboards.org Cc: openrisc@lists.librecores.org Cc: linux-parisc@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-riscv@lists.infradead.org Cc: linux-s390@vger.kernel.org Cc: linux-sh@vger.kernel.org Cc: sparclinux@vger.kernel.org Cc: linux-um@lists.infradead.org Cc: linux-xtensa@linux-xtensa.org Cc: linux-arch@vger.kernel.org Cc: linux-audit@redhat.com Signed-off-by: Dmitry V. Levin Signed-off-by: Paul Moore --- arch/alpha/include/asm/syscall.h | 2 +- arch/arc/include/asm/syscall.h | 2 +- arch/arm/include/asm/syscall.h | 2 +- arch/arm64/include/asm/syscall.h | 4 ++-- arch/c6x/include/asm/syscall.h | 2 +- arch/csky/include/asm/syscall.h | 2 +- arch/h8300/include/asm/syscall.h | 2 +- arch/hexagon/include/asm/syscall.h | 2 +- arch/ia64/include/asm/syscall.h | 2 +- arch/m68k/include/asm/syscall.h | 2 +- arch/microblaze/include/asm/syscall.h | 2 +- arch/mips/include/asm/syscall.h | 6 +++--- arch/mips/kernel/ptrace.c | 2 +- arch/nds32/include/asm/syscall.h | 2 +- arch/nios2/include/asm/syscall.h | 2 +- arch/openrisc/include/asm/syscall.h | 2 +- arch/parisc/include/asm/syscall.h | 4 ++-- arch/powerpc/include/asm/syscall.h | 10 ++++++++-- arch/riscv/include/asm/syscall.h | 2 +- arch/s390/include/asm/syscall.h | 4 ++-- arch/sh/include/asm/syscall_32.h | 2 +- arch/sh/include/asm/syscall_64.h | 2 +- arch/sparc/include/asm/syscall.h | 5 +++-- arch/unicore32/include/asm/syscall.h | 2 +- arch/x86/include/asm/syscall.h | 8 +++++--- arch/x86/um/asm/syscall.h | 2 +- arch/xtensa/include/asm/syscall.h | 2 +- include/asm-generic/syscall.h | 5 +++-- kernel/auditsc.c | 4 ++-- kernel/seccomp.c | 4 ++-- 30 files changed, 52 insertions(+), 42 deletions(-) (limited to 'arch/nds32') diff --git a/arch/alpha/include/asm/syscall.h b/arch/alpha/include/asm/syscall.h index d73a6fcb519c..11c688c1d7ec 100644 --- a/arch/alpha/include/asm/syscall.h +++ b/arch/alpha/include/asm/syscall.h @@ -4,7 +4,7 @@ #include -static inline int syscall_get_arch(void) +static inline int syscall_get_arch(struct task_struct *task) { return AUDIT_ARCH_ALPHA; } diff --git a/arch/arc/include/asm/syscall.h b/arch/arc/include/asm/syscall.h index c7fc4c0c3bcb..caf2697ef5b7 100644 --- a/arch/arc/include/asm/syscall.h +++ b/arch/arc/include/asm/syscall.h @@ -70,7 +70,7 @@ syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, } static inline int -syscall_get_arch(void) +syscall_get_arch(struct task_struct *task) { return IS_ENABLED(CONFIG_ISA_ARCOMPACT) ? (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN) diff --git a/arch/arm/include/asm/syscall.h b/arch/arm/include/asm/syscall.h index 06dea6bce293..3940ceac0bdc 100644 --- a/arch/arm/include/asm/syscall.h +++ b/arch/arm/include/asm/syscall.h @@ -104,7 +104,7 @@ static inline void syscall_set_arguments(struct task_struct *task, memcpy(®s->ARM_r0 + i, args, n * sizeof(args[0])); } -static inline int syscall_get_arch(void) +static inline int syscall_get_arch(struct task_struct *task) { /* ARM tasks don't change audit architectures on the fly. */ return AUDIT_ARCH_ARM; diff --git a/arch/arm64/include/asm/syscall.h b/arch/arm64/include/asm/syscall.h index ad8be16a39c9..1870df03f774 100644 --- a/arch/arm64/include/asm/syscall.h +++ b/arch/arm64/include/asm/syscall.h @@ -117,9 +117,9 @@ static inline void syscall_set_arguments(struct task_struct *task, * We don't care about endianness (__AUDIT_ARCH_LE bit) here because * AArch64 has the same system calls both on little- and big- endian. */ -static inline int syscall_get_arch(void) +static inline int syscall_get_arch(struct task_struct *task) { - if (is_compat_task()) + if (is_compat_thread(task_thread_info(task))) return AUDIT_ARCH_ARM; return AUDIT_ARCH_AARCH64; diff --git a/arch/c6x/include/asm/syscall.h b/arch/c6x/include/asm/syscall.h index 39dbd1ef994c..595057191c9c 100644 --- a/arch/c6x/include/asm/syscall.h +++ b/arch/c6x/include/asm/syscall.h @@ -121,7 +121,7 @@ static inline void syscall_set_arguments(struct task_struct *task, } } -static inline int syscall_get_arch(void) +static inline int syscall_get_arch(struct task_struct *task) { return IS_ENABLED(CONFIG_CPU_BIG_ENDIAN) ? AUDIT_ARCH_C6XBE : AUDIT_ARCH_C6X; diff --git a/arch/csky/include/asm/syscall.h b/arch/csky/include/asm/syscall.h index d637445737b7..150ffb894fa2 100644 --- a/arch/csky/include/asm/syscall.h +++ b/arch/csky/include/asm/syscall.h @@ -70,7 +70,7 @@ syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, } static inline int -syscall_get_arch(void) +syscall_get_arch(struct task_struct *task) { return AUDIT_ARCH_CSKY; } diff --git a/arch/h8300/include/asm/syscall.h b/arch/h8300/include/asm/syscall.h index 5135910616e2..d316c3d40d4e 100644 --- a/arch/h8300/include/asm/syscall.h +++ b/arch/h8300/include/asm/syscall.h @@ -49,7 +49,7 @@ syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, } static inline int -syscall_get_arch(void) +syscall_get_arch(struct task_struct *task) { return AUDIT_ARCH_H8300; } diff --git a/arch/hexagon/include/asm/syscall.h b/arch/hexagon/include/asm/syscall.h index de3917aad3fd..47b0bc3f16be 100644 --- a/arch/hexagon/include/asm/syscall.h +++ b/arch/hexagon/include/asm/syscall.h @@ -46,7 +46,7 @@ static inline void syscall_get_arguments(struct task_struct *task, memcpy(args, &(®s->r00)[i], n * sizeof(args[0])); } -static inline int syscall_get_arch(void) +static inline int syscall_get_arch(struct task_struct *task) { return AUDIT_ARCH_HEXAGON; } diff --git a/arch/ia64/include/asm/syscall.h b/arch/ia64/include/asm/syscall.h index 1d0b875fec44..47ab33f5448a 100644 --- a/arch/ia64/include/asm/syscall.h +++ b/arch/ia64/include/asm/syscall.h @@ -81,7 +81,7 @@ static inline void syscall_set_arguments(struct task_struct *task, ia64_syscall_get_set_arguments(task, regs, i, n, args, 1); } -static inline int syscall_get_arch(void) +static inline int syscall_get_arch(struct task_struct *task) { return AUDIT_ARCH_IA64; } diff --git a/arch/m68k/include/asm/syscall.h b/arch/m68k/include/asm/syscall.h index d4d7deda8d50..465ac039be09 100644 --- a/arch/m68k/include/asm/syscall.h +++ b/arch/m68k/include/asm/syscall.h @@ -4,7 +4,7 @@ #include -static inline int syscall_get_arch(void) +static inline int syscall_get_arch(struct task_struct *task) { return AUDIT_ARCH_M68K; } diff --git a/arch/microblaze/include/asm/syscall.h b/arch/microblaze/include/asm/syscall.h index 220decd605a4..77a86fafa974 100644 --- a/arch/microblaze/include/asm/syscall.h +++ b/arch/microblaze/include/asm/syscall.h @@ -101,7 +101,7 @@ static inline void syscall_set_arguments(struct task_struct *task, asmlinkage unsigned long do_syscall_trace_enter(struct pt_regs *regs); asmlinkage void do_syscall_trace_leave(struct pt_regs *regs); -static inline int syscall_get_arch(void) +static inline int syscall_get_arch(struct task_struct *task) { return AUDIT_ARCH_MICROBLAZE; } diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h index 6cf8ffb5367e..6a22c9352ef6 100644 --- a/arch/mips/include/asm/syscall.h +++ b/arch/mips/include/asm/syscall.h @@ -140,14 +140,14 @@ extern const unsigned long sys_call_table[]; extern const unsigned long sys32_call_table[]; extern const unsigned long sysn32_call_table[]; -static inline int syscall_get_arch(void) +static inline int syscall_get_arch(struct task_struct *task) { int arch = AUDIT_ARCH_MIPS; #ifdef CONFIG_64BIT - if (!test_thread_flag(TIF_32BIT_REGS)) { + if (!test_tsk_thread_flag(task, TIF_32BIT_REGS)) { arch |= __AUDIT_ARCH_64BIT; /* N32 sets only TIF_32BIT_ADDR */ - if (test_thread_flag(TIF_32BIT_ADDR)) + if (test_tsk_thread_flag(task, TIF_32BIT_ADDR)) arch |= __AUDIT_ARCH_CONVENTION_MIPS64_N32; } #endif diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c index 0057c910bc2f..2ead6ff919b7 100644 --- a/arch/mips/kernel/ptrace.c +++ b/arch/mips/kernel/ptrace.c @@ -1418,7 +1418,7 @@ asmlinkage long syscall_trace_enter(struct pt_regs *regs, long syscall) unsigned long args[6]; sd.nr = syscall; - sd.arch = syscall_get_arch(); + sd.arch = syscall_get_arch(current); syscall_get_arguments(current, regs, 0, 6, args); for (i = 0; i < 6; i++) sd.args[i] = args[i]; diff --git a/arch/nds32/include/asm/syscall.h b/arch/nds32/include/asm/syscall.h index cc56a3962f8b..7501e376a6b1 100644 --- a/arch/nds32/include/asm/syscall.h +++ b/arch/nds32/include/asm/syscall.h @@ -188,7 +188,7 @@ void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, } static inline int -syscall_get_arch(void) +syscall_get_arch(struct task_struct *task) { return IS_ENABLED(CONFIG_CPU_BIG_ENDIAN) ? AUDIT_ARCH_NDS32BE : AUDIT_ARCH_NDS32; diff --git a/arch/nios2/include/asm/syscall.h b/arch/nios2/include/asm/syscall.h index cf35e210fc4d..f0f6ae208e78 100644 --- a/arch/nios2/include/asm/syscall.h +++ b/arch/nios2/include/asm/syscall.h @@ -136,7 +136,7 @@ static inline void syscall_set_arguments(struct task_struct *task, } } -static inline int syscall_get_arch(void) +static inline int syscall_get_arch(struct task_struct *task) { return AUDIT_ARCH_NIOS2; } diff --git a/arch/openrisc/include/asm/syscall.h b/arch/openrisc/include/asm/syscall.h index 2db9f1cf0694..46b10c674bd2 100644 --- a/arch/openrisc/include/asm/syscall.h +++ b/arch/openrisc/include/asm/syscall.h @@ -72,7 +72,7 @@ syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, memcpy(®s->gpr[3 + i], args, n * sizeof(args[0])); } -static inline int syscall_get_arch(void) +static inline int syscall_get_arch(struct task_struct *task) { return AUDIT_ARCH_OPENRISC; } diff --git a/arch/parisc/include/asm/syscall.h b/arch/parisc/include/asm/syscall.h index 8bff1a58c97f..c04ffc6ac928 100644 --- a/arch/parisc/include/asm/syscall.h +++ b/arch/parisc/include/asm/syscall.h @@ -62,11 +62,11 @@ static inline void syscall_rollback(struct task_struct *task, /* do nothing */ } -static inline int syscall_get_arch(void) +static inline int syscall_get_arch(struct task_struct *task) { int arch = AUDIT_ARCH_PARISC; #ifdef CONFIG_64BIT - if (!is_compat_task()) + if (!__is_compat_task(task)) arch = AUDIT_ARCH_PARISC64; #endif return arch; diff --git a/arch/powerpc/include/asm/syscall.h b/arch/powerpc/include/asm/syscall.h index 1a0e7a8b1c81..efb50429c9f4 100644 --- a/arch/powerpc/include/asm/syscall.h +++ b/arch/powerpc/include/asm/syscall.h @@ -99,9 +99,15 @@ static inline void syscall_set_arguments(struct task_struct *task, regs->orig_gpr3 = args[0]; } -static inline int syscall_get_arch(void) +static inline int syscall_get_arch(struct task_struct *task) { - int arch = is_32bit_task() ? AUDIT_ARCH_PPC : AUDIT_ARCH_PPC64; + int arch; + + if (IS_ENABLED(CONFIG_PPC64) && !test_tsk_thread_flag(task, TIF_32BIT)) + arch = AUDIT_ARCH_PPC64; + else + arch = AUDIT_ARCH_PPC; + #ifdef __LITTLE_ENDIAN__ arch |= __AUDIT_ARCH_LE; #endif diff --git a/arch/riscv/include/asm/syscall.h b/arch/riscv/include/asm/syscall.h index bba3da6ef157..ca120a36a037 100644 --- a/arch/riscv/include/asm/syscall.h +++ b/arch/riscv/include/asm/syscall.h @@ -100,7 +100,7 @@ static inline void syscall_set_arguments(struct task_struct *task, memcpy(®s->a1 + i * sizeof(regs->a1), args, n * sizeof(regs->a0)); } -static inline int syscall_get_arch(void) +static inline int syscall_get_arch(struct task_struct *task) { #ifdef CONFIG_64BIT return AUDIT_ARCH_RISCV64; diff --git a/arch/s390/include/asm/syscall.h b/arch/s390/include/asm/syscall.h index 96f9a9151fde..5a40ea8b90ea 100644 --- a/arch/s390/include/asm/syscall.h +++ b/arch/s390/include/asm/syscall.h @@ -92,10 +92,10 @@ static inline void syscall_set_arguments(struct task_struct *task, regs->orig_gpr2 = args[0]; } -static inline int syscall_get_arch(void) +static inline int syscall_get_arch(struct task_struct *task) { #ifdef CONFIG_COMPAT - if (test_tsk_thread_flag(current, TIF_31BIT)) + if (test_tsk_thread_flag(task, TIF_31BIT)) return AUDIT_ARCH_S390; #endif return AUDIT_ARCH_S390X; diff --git a/arch/sh/include/asm/syscall_32.h b/arch/sh/include/asm/syscall_32.h index 6e118799831c..08de429eccd4 100644 --- a/arch/sh/include/asm/syscall_32.h +++ b/arch/sh/include/asm/syscall_32.h @@ -95,7 +95,7 @@ static inline void syscall_set_arguments(struct task_struct *task, } } -static inline int syscall_get_arch(void) +static inline int syscall_get_arch(struct task_struct *task) { int arch = AUDIT_ARCH_SH; diff --git a/arch/sh/include/asm/syscall_64.h b/arch/sh/include/asm/syscall_64.h index 43882580c7f9..9b62a2404531 100644 --- a/arch/sh/include/asm/syscall_64.h +++ b/arch/sh/include/asm/syscall_64.h @@ -63,7 +63,7 @@ static inline void syscall_set_arguments(struct task_struct *task, memcpy(®s->regs[2 + i], args, n * sizeof(args[0])); } -static inline int syscall_get_arch(void) +static inline int syscall_get_arch(struct task_struct *task) { int arch = AUDIT_ARCH_SH; diff --git a/arch/sparc/include/asm/syscall.h b/arch/sparc/include/asm/syscall.h index 053989e3f6a6..9ffb367c17fd 100644 --- a/arch/sparc/include/asm/syscall.h +++ b/arch/sparc/include/asm/syscall.h @@ -128,10 +128,11 @@ static inline void syscall_set_arguments(struct task_struct *task, regs->u_regs[UREG_I0 + i + j] = args[j]; } -static inline int syscall_get_arch(void) +static inline int syscall_get_arch(struct task_struct *task) { #if defined(CONFIG_SPARC64) && defined(CONFIG_COMPAT) - return in_compat_syscall() ? AUDIT_ARCH_SPARC : AUDIT_ARCH_SPARC64; + return test_tsk_thread_flag(task, TIF_32BIT) + ? AUDIT_ARCH_SPARC : AUDIT_ARCH_SPARC64; #elif defined(CONFIG_SPARC64) return AUDIT_ARCH_SPARC64; #else diff --git a/arch/unicore32/include/asm/syscall.h b/arch/unicore32/include/asm/syscall.h index 3a6b885476b4..607961797fff 100644 --- a/arch/unicore32/include/asm/syscall.h +++ b/arch/unicore32/include/asm/syscall.h @@ -4,7 +4,7 @@ #include -static inline int syscall_get_arch(void) +static inline int syscall_get_arch(struct task_struct *task) { return AUDIT_ARCH_UNICORE; } diff --git a/arch/x86/include/asm/syscall.h b/arch/x86/include/asm/syscall.h index d653139857af..435f3f09279c 100644 --- a/arch/x86/include/asm/syscall.h +++ b/arch/x86/include/asm/syscall.h @@ -107,7 +107,7 @@ static inline void syscall_set_arguments(struct task_struct *task, memcpy(®s->bx + i, args, n * sizeof(args[0])); } -static inline int syscall_get_arch(void) +static inline int syscall_get_arch(struct task_struct *task) { return AUDIT_ARCH_I386; } @@ -236,10 +236,12 @@ static inline void syscall_set_arguments(struct task_struct *task, } } -static inline int syscall_get_arch(void) +static inline int syscall_get_arch(struct task_struct *task) { /* x32 tasks should be considered AUDIT_ARCH_X86_64. */ - return in_ia32_syscall() ? AUDIT_ARCH_I386 : AUDIT_ARCH_X86_64; + return (IS_ENABLED(CONFIG_IA32_EMULATION) && + task->thread_info.status & TS_COMPAT) + ? AUDIT_ARCH_I386 : AUDIT_ARCH_X86_64; } #endif /* CONFIG_X86_32 */ diff --git a/arch/x86/um/asm/syscall.h b/arch/x86/um/asm/syscall.h index ef898af102d1..56a2f0913e3c 100644 --- a/arch/x86/um/asm/syscall.h +++ b/arch/x86/um/asm/syscall.h @@ -9,7 +9,7 @@ typedef asmlinkage long (*sys_call_ptr_t)(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long); -static inline int syscall_get_arch(void) +static inline int syscall_get_arch(struct task_struct *task) { #ifdef CONFIG_X86_32 return AUDIT_ARCH_I386; diff --git a/arch/xtensa/include/asm/syscall.h b/arch/xtensa/include/asm/syscall.h index a168bf81c7f4..0681ca656809 100644 --- a/arch/xtensa/include/asm/syscall.h +++ b/arch/xtensa/include/asm/syscall.h @@ -14,7 +14,7 @@ #include #include -static inline int syscall_get_arch(void) +static inline int syscall_get_arch(struct task_struct *task) { return AUDIT_ARCH_XTENSA; } diff --git a/include/asm-generic/syscall.h b/include/asm-generic/syscall.h index 0c938a4354f6..e0d060b43321 100644 --- a/include/asm-generic/syscall.h +++ b/include/asm-generic/syscall.h @@ -144,14 +144,15 @@ void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, /** * syscall_get_arch - return the AUDIT_ARCH for the current system call + * @task: task of interest, must be blocked * * Returns the AUDIT_ARCH_* based on the system call convention in use. * - * It's only valid to call this when current is stopped on entry to a system + * It's only valid to call this when @task is stopped on entry to a system * call, due to %TIF_SYSCALL_TRACE, %TIF_SYSCALL_AUDIT, or %TIF_SECCOMP. * * Architectures which permit CONFIG_HAVE_ARCH_SECCOMP_FILTER must * provide an implementation of this. */ -int syscall_get_arch(void); +int syscall_get_arch(struct task_struct *task); #endif /* _ASM_SYSCALL_H */ diff --git a/kernel/auditsc.c b/kernel/auditsc.c index 17b0007fafc2..98a98e6dca05 100644 --- a/kernel/auditsc.c +++ b/kernel/auditsc.c @@ -1636,7 +1636,7 @@ void __audit_syscall_entry(int major, unsigned long a1, unsigned long a2, return; } - context->arch = syscall_get_arch(); + context->arch = syscall_get_arch(current); context->major = major; context->argv[0] = a1; context->argv[1] = a2; @@ -2590,7 +2590,7 @@ void audit_seccomp(unsigned long syscall, long signr, int code) return; audit_log_task(ab); audit_log_format(ab, " sig=%ld arch=%x syscall=%ld compat=%d ip=0x%lx code=0x%x", - signr, syscall_get_arch(), syscall, + signr, syscall_get_arch(current), syscall, in_compat_syscall(), KSTK_EIP(current), code); audit_log_end(ab); } diff --git a/kernel/seccomp.c b/kernel/seccomp.c index 54a0347ca812..36f36ab00f48 100644 --- a/kernel/seccomp.c +++ b/kernel/seccomp.c @@ -148,7 +148,7 @@ static void populate_seccomp_data(struct seccomp_data *sd) unsigned long args[6]; sd->nr = syscall_get_nr(task, regs); - sd->arch = syscall_get_arch(); + sd->arch = syscall_get_arch(task); syscall_get_arguments(task, regs, 0, 6, args); sd->args[0] = args[0]; sd->args[1] = args[1]; @@ -591,7 +591,7 @@ static void seccomp_init_siginfo(kernel_siginfo_t *info, int syscall, int reason info->si_code = SYS_SECCOMP; info->si_call_addr = (void __user *)KSTK_EIP(current); info->si_errno = reason; - info->si_arch = syscall_get_arch(); + info->si_arch = syscall_get_arch(current); info->si_syscall = syscall; } -- cgit v1.2.3-58-ga151