From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7C441CD37AC for ; Mon, 11 May 2026 09:22:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:To:From:Reply-To:Cc:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Y0+aAwFLi92+TRI38jn2hv+CS+CcDbRx2xD0b1Cai4s=; b=ffvk12ZGn5yN3txcyMB8n5c9ih TBZA6PRXQUTkWYG6Bv0ojCAjfgKmz2RJu6MzCOEQhInrBPfpacj3+UnvKdeypG/rl5Z7qWMJOB9id Jo2djG1RSpwJiVBUoDUJ0OkuUf/I7aTOdIYUFRAmYLsoQBG2Qbjle/OtlO9MfxcdBiTNp7hSuuHVd oPhNmKAUkY3Xc2DgEeyDeixlE/H3/35c3otIgXN72yZAgMy8vJm433CrK1HIFLwpcgNFkJw6hwgpM O5h94MdXDVXPFHY2s44/Wbg8WsOIvntJV3xv0RQu0RBHNRbLAjvamx+ri62tCORoCAqD7YP5/XwQu AULh8FuQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wMMq1-0000000Ct04-2Gwt; Mon, 11 May 2026 09:22:09 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wMMq0-0000000Csxe-1Ffb for linux-arm-kernel@bombadil.infradead.org; Mon, 11 May 2026 09:22:08 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Type:Content-Transfer-Encoding :MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:To:From:Sender: Reply-To:Cc:Content-ID:Content-Description; bh=Y0+aAwFLi92+TRI38jn2hv+CS+CcDbRx2xD0b1Cai4s=; b=FKep2QGG+KkZjt1lPMruBTZzKR 5xWMdBouGQYueLisEe1hBDQAJcglM9ewFh0Hu0ZmO5lSpLH0hQ+SvKFxb7LKMlT+1panJ22h6cngn 3ISXx2VQR2QkrCNWXvAnVKnwvnYsjAYWMInNZ9eJL+2/Hl8eki0THxw10/pr/KzmQaIDpXx0ah8f3 cpZMF8ZHXG5b7mM75UR77G7Aval78G8cgWt7Tq64+8Wd0ivfm2os/aoCHCKFbf3mWWYJ0tYIBSR09 xWSXRsT6cpaKkqvBhOZUZzlcAUDHQ9JvI8Yag/gHqF1/WS2vvvqU0qfJQAd5Bk/XZQsyy02eksBYI qwt1QLXg==; Received: from canpmsgout06.his.huawei.com ([113.46.200.221]) by desiato.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wMMpw-0000000BA4x-1mpM for linux-arm-kernel@lists.infradead.org; Mon, 11 May 2026 09:22:06 +0000 dkim-signature: v=1; a=rsa-sha256; d=huawei.com; s=dkim; c=relaxed/relaxed; q=dns/txt; h=From; bh=Y0+aAwFLi92+TRI38jn2hv+CS+CcDbRx2xD0b1Cai4s=; b=eViMSrSEJO07cHxkhI1BqI/e3Keb8gBPPMBs+Gn2M8eApbLmx8akFffez5pN7JVmT2nCTG7cS WO9yu9xHEGNWJuJFPZq54OFFz8y6Ehf0H/1dxni7K1b4N0w2jvchYveg2MyWQ6ymxrAr77Xufsb CqKExTrAGaqqG7yi4c6K2kg= Received: from mail.maildlp.com (unknown [172.19.162.197]) by canpmsgout06.his.huawei.com (SkyGuard) with ESMTPS id 4gDYvL6JDdzRhSh; Mon, 11 May 2026 17:14:22 +0800 (CST) Received: from dggpemf500011.china.huawei.com (unknown [7.185.36.131]) by mail.maildlp.com (Postfix) with ESMTPS id 6B6AB40569; Mon, 11 May 2026 17:21:58 +0800 (CST) Received: from huawei.com (10.90.53.73) by dggpemf500011.china.huawei.com (7.185.36.131) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Mon, 11 May 2026 17:21:56 +0800 From: Jinjie Ruan To: , , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH v15 05/11] arm64/ptrace: Use syscall_get_arguments() helper for audit Date: Mon, 11 May 2026 17:20:57 +0800 Message-ID: <20260511092103.1974980-6-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260511092103.1974980-1-ruanjinjie@huawei.com> References: <20260511092103.1974980-1-ruanjinjie@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.90.53.73] X-ClientProxiedBy: kwepems200002.china.huawei.com (7.221.188.68) To dggpemf500011.china.huawei.com (7.185.36.131) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260511_102205_170427_37483C26 X-CRM114-Status: GOOD ( 11.02 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Extract syscall_enter_audit() helper and use syscall_get_arguments() to get syscall arguments, matching the generic entry implementation. The new code: - Checks audit_context() first to avoid unnecessary memcpy when audit is not active. - Uses syscall_get_arguments() helper instead of directly accessing regs fields. - Is now exactly equivalent to generic entry's syscall_enter_audit(). No functional changes. Cc: Mark Rutland Cc: Will Deacon Cc: Catalin Marinas Reviewed-by: Linus Walleij Reviewed-by: Yeoreum Yun Reviewed-by: Kevin Brodsky Signed-off-by: Jinjie Ruan --- arch/arm64/kernel/ptrace.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c index ba8cb5ec967b..20441e0f6328 100644 --- a/arch/arm64/kernel/ptrace.c +++ b/arch/arm64/kernel/ptrace.c @@ -2408,6 +2408,16 @@ static void report_syscall_exit(struct pt_regs *regs) } } +static inline void syscall_enter_audit(struct pt_regs *regs, long syscall) +{ + if (unlikely(audit_context())) { + unsigned long args[6]; + + syscall_get_arguments(current, regs, args); + audit_syscall_entry(syscall, args[0], args[1], args[2], args[3]); + } +} + int syscall_trace_enter(struct pt_regs *regs, unsigned long flags) { long syscall; @@ -2439,8 +2449,7 @@ int syscall_trace_enter(struct pt_regs *regs, unsigned long flags) syscall = syscall_get_nr(current, regs); } - audit_syscall_entry(syscall, regs->orig_x0, regs->regs[1], - regs->regs[2], regs->regs[3]); + syscall_enter_audit(regs, syscall); return syscall; } -- 2.34.1