From patchwork Mon Jan 7 02:54:10 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Dmitry V. Levin" X-Patchwork-Id: 10749825 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id AB4F314E2 for ; Mon, 7 Jan 2019 02:54:14 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 920952885E for ; Mon, 7 Jan 2019 02:54:14 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 85EE12888A; Mon, 7 Jan 2019 02:54:14 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DECD52885E for ; Mon, 7 Jan 2019 02:54:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726657AbfAGCyN (ORCPT ); Sun, 6 Jan 2019 21:54:13 -0500 Received: from vmicros1.altlinux.org ([194.107.17.57]:55342 "EHLO vmicros1.altlinux.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726481AbfAGCyN (ORCPT ); Sun, 6 Jan 2019 21:54:13 -0500 Received: from mua.local.altlinux.org (mua.local.altlinux.org [192.168.1.14]) by vmicros1.altlinux.org (Postfix) with ESMTP id D448A72CC6C; Mon, 7 Jan 2019 05:54:10 +0300 (MSK) Received: by mua.local.altlinux.org (Postfix, from userid 508) id 6F8388E5C51; Mon, 7 Jan 2019 05:54:10 +0300 (MSK) Date: Mon, 7 Jan 2019 05:54:10 +0300 From: "Dmitry V. Levin" To: linux-kernel@vger.kernel.org Cc: Elvira Khabirova , Eugene Syromyatnikov , Paul Burton , Ralf Baechle , James Hogan , Oleg Nesterov , Andy Lutomirski , linux-mips@vger.kernel.org Subject: [PATCH v7 14/22] mips: define syscall_get_error() Message-ID: <20190107025410.GN1207@altlinux.org> References: <20190107025101.GA1182@altlinux.org> MIME-Version: 1.0 Content-Disposition: inline Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP syscall_get_error() is required to be implemented on all architectures in addition to already implemented syscall_get_nr(), syscall_get_arguments(), syscall_get_return_value(), and syscall_get_arch() functions in order to extend the generic ptrace API with PTRACE_GET_SYSCALL_INFO request. Acked-by: Paul Burton Cc: Ralf Baechle Cc: James Hogan Cc: Oleg Nesterov Cc: Andy Lutomirski Cc: Elvira Khabirova Cc: Eugene Syromyatnikov Cc: linux-mips@vger.kernel.org Signed-off-by: Dmitry V. Levin --- Notes: v7: added Acked-by v6: unchanged v5: initial revision arch/mips/include/asm/syscall.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h index 6cf8ffb5367e..04ab927ff47d 100644 --- a/arch/mips/include/asm/syscall.h +++ b/arch/mips/include/asm/syscall.h @@ -89,6 +89,12 @@ static inline unsigned long mips_get_syscall_arg(unsigned long *arg, unreachable(); } +static inline long syscall_get_error(struct task_struct *task, + struct pt_regs *regs) +{ + return regs->regs[7] ? -regs->regs[2] : 0; +} + static inline long syscall_get_return_value(struct task_struct *task, struct pt_regs *regs) { From patchwork Mon Jan 7 02:54:47 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Dmitry V. Levin" X-Patchwork-Id: 10749837 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 10A3717D2 for ; Mon, 7 Jan 2019 02:55:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EF1C9289CC for ; Mon, 7 Jan 2019 02:55:28 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E1CAF289D2; Mon, 7 Jan 2019 02:55:28 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 677F6289CC for ; Mon, 7 Jan 2019 02:55:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726573AbfAGCzV (ORCPT ); Sun, 6 Jan 2019 21:55:21 -0500 Received: from vmicros1.altlinux.org ([194.107.17.57]:56346 "EHLO vmicros1.altlinux.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726415AbfAGCzV (ORCPT ); Sun, 6 Jan 2019 21:55:21 -0500 Received: from mua.local.altlinux.org (mua.local.altlinux.org [192.168.1.14]) by vmicros1.altlinux.org (Postfix) with ESMTP id 5C50F72CC71; Mon, 7 Jan 2019 05:54:47 +0300 (MSK) Received: by mua.local.altlinux.org (Postfix, from userid 508) id 4FE738E5C51; Mon, 7 Jan 2019 05:54:47 +0300 (MSK) Date: Mon, 7 Jan 2019 05:54:47 +0300 From: "Dmitry V. Levin" To: linux-kernel@vger.kernel.org, Richard Henderson , Ivan Kokshaysky , Matt Turner , Vineet Gupta , Russell King , Catalin Marinas , Will Deacon , Aurelien Jacquiot , Yoshinori Sato , Richard Kuo , Tony Luck , Fenghua Yu , Geert Uytterhoeven , Michal Simek , Greentime Hu , Vincent Chen , Ley Foon Tan , Jonas Bonn , Stefan Kristiansson , Stafford Horne , "James E.J. Bottomley" , Helge Deller , Albert Ou , Martin Schwidefsky , Heiko Carstens , Rich Felker , "David S. Miller" , Guan Xuetao , Jeff Dike , Richard Weinberger , Chris Zankel , Max Filippov , Arnd Bergmann Cc: Elvira Khabirova , Eugene Syromyatnikov , Andy Lutomirski , Oleg Nesterov , Palmer Dabbelt , Paul Burton , Michael Ellerman , Kees Cook , Will Drewry , Mark Salter , Paul Moore , Eric Paris , Ralf Baechle , James Hogan , Benjamin Herrenschmidt , Paul Mackerras , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , x86@kernel.org, linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-c6x-dev@linux-c6x.org, uclinux-h8-devel@lists.sourceforge.jp, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, nios2-dev@lists.rocketboards.org, openrisc@lists.librecores.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-xtensa@linux-xtensa.org, linux-arch@vger.kernel.org, linux-audit@redhat.com Subject: [PATCH v7 20/22] syscall_get_arch: add "struct task_struct *" argument Message-ID: <20190107025447.GT1207@altlinux.org> References: <20190107025101.GA1182@altlinux.org> MIME-Version: 1.0 Content-Disposition: inline Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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. 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 Burton # MIPS parts Acked-by: Michael Ellerman (powerpc) Acked-by: Kees Cook # seccomp parts Acked-by: Mark Salter # for the c6x bit Acked-by: Paul Moore # audit related parts Cc: Eric Paris Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Cc: Vineet Gupta Cc: Russell King Cc: Catalin Marinas Cc: Will Deacon Cc: Aurelien Jacquiot Cc: Yoshinori Sato Cc: Richard Kuo Cc: Tony Luck Cc: Fenghua Yu Cc: Geert Uytterhoeven Cc: Michal Simek Cc: Greentime Hu Cc: Vincent Chen Cc: Ley Foon Tan Cc: Jonas Bonn Cc: Stefan Kristiansson Cc: Stafford Horne Cc: James E.J. Bottomley Cc: Helge Deller Cc: Albert Ou Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: Rich Felker Cc: David S. Miller Cc: Guan Xuetao Cc: Jeff Dike Cc: Richard Weinberger Cc: Chris Zankel Cc: Max Filippov Cc: Arnd Bergmann Cc: Will Drewry Cc: Oleg Nesterov Cc: Elvira Khabirova Cc: Eugene Syromyatnikov Cc: Ralf Baechle Cc: James Hogan Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: H. Peter Anvin 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 --- Notes: v7: added more Acked-by v6: added more Acked-by v5: added Cc v2: cleaned up mips part, added Reviewed-by 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(-) diff --git a/arch/alpha/include/asm/syscall.h b/arch/alpha/include/asm/syscall.h index c67d6a69d7c8..20078aef0922 100644 --- a/arch/alpha/include/asm/syscall.h +++ b/arch/alpha/include/asm/syscall.h @@ -33,7 +33,7 @@ syscall_get_return_value(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_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 0a6565d12836..5c2ab1072700 100644 --- a/arch/h8300/include/asm/syscall.h +++ b/arch/h8300/include/asm/syscall.h @@ -62,7 +62,7 @@ syscall_get_return_value(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 c3290c0bc458..94bdfd22f912 100644 --- a/arch/hexagon/include/asm/syscall.h +++ b/arch/hexagon/include/asm/syscall.h @@ -60,7 +60,7 @@ static inline long syscall_get_return_value(struct task_struct *task, return regs->r00; } -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 c87b14417753..e5ea2e20d3a5 100644 --- a/arch/m68k/include/asm/syscall.h +++ b/arch/m68k/include/asm/syscall.h @@ -34,7 +34,7 @@ syscall_get_return_value(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_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 04ab927ff47d..466957d0474b 100644 --- a/arch/mips/include/asm/syscall.h +++ b/arch/mips/include/asm/syscall.h @@ -146,14 +146,14 @@ 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 569149ca25da..e109acd225e6 100644 --- a/arch/nds32/include/asm/syscall.h +++ b/arch/nds32/include/asm/syscall.h @@ -187,7 +187,7 @@ 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) +static inline int 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 477511ff7546..310016e1925d 100644 --- a/arch/parisc/include/asm/syscall.h +++ b/arch/parisc/include/asm/syscall.h @@ -69,11 +69,11 @@ 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 b522781ad7c0..7375808c566c 100644 --- a/arch/powerpc/include/asm/syscall.h +++ b/arch/powerpc/include/asm/syscall.h @@ -109,9 +109,15 @@ 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 267e97e256bd..1451bce52eb8 100644 --- a/arch/unicore32/include/asm/syscall.h +++ b/arch/unicore32/include/asm/syscall.h @@ -39,7 +39,7 @@ syscall_get_return_value(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_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 fdefe27fa63f..43216b431770 100644 --- a/include/asm-generic/syscall.h +++ b/include/asm-generic/syscall.h @@ -194,16 +194,17 @@ 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. */ static int -syscall_get_arch(void); +syscall_get_arch(struct task_struct *task); #endif /* _ASM_GENERIC_SYSCALL_H */ diff --git a/kernel/auditsc.c b/kernel/auditsc.c index 6593a5207fb0..919fe4ef4314 100644 --- a/kernel/auditsc.c +++ b/kernel/auditsc.c @@ -1505,7 +1505,7 @@ 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; @@ -2480,7 +2480,7 @@ 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 d7f538847b84..803a69e6af37 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]; @@ -589,7 +589,7 @@ 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; }