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 7004F108B8EE for ; Fri, 20 Mar 2026 10:25:40 +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=AqM4dA797NdPBjVX5ZCFGXmoCr2YkFCuKkL3jOGIRwY=; b=KgEjeYZci1wB7PwUORKrI6qsRO 175ob2cHOdoLei2piPc93jPFFQ3DOOBvfWYTA2p050tnkmMElTIVGpfFv7Wsg7/QowZi2S+iJBFkM UwBg9WNlFHawNNQHyyS85D9jrFNwjXJMCFdQHakfMczDcu5HgSswFl7K2E9XA0x36Rn4FDOFl1+tk kXsSDpwAe2GOCmxZojZ1oVSVGoEzLB90cS8NoCHVn7/sC+KvR/OLqkMJpERMY5q42jhFe50qUhytj CD9wu5IAEkZf2kkvGFyOxMly2T/P2ZCBhtADVRda6cR+NjPFmsntDBJuA+2VR6kT6PXIPk1JCUs8Q 9vzZlHBA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1w3X2t-0000000CaGT-3M8A; Fri, 20 Mar 2026 10:25:35 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1w3X2s-0000000CaFB-2A4q for linux-arm-kernel@bombadil.infradead.org; Fri, 20 Mar 2026 10:25:34 +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=AqM4dA797NdPBjVX5ZCFGXmoCr2YkFCuKkL3jOGIRwY=; b=WQgwIGtjqukGKAx9TSkhMCaIbu 9+yPNlJSMVRigL48vgMA4LmQl3ATdtzJccMUMWm7A+igAgF/fc94NAdi5GQn2//Ep5MtyE3Zt8GGc sc/uDY0D64o5IqED/wJJ4lsozsz1cKLZzVjImETw6ngJ5ZwHoI40auvIBwH90tMQn03GwGubJieXg BzF7JuTJ7gs2zck7nJn4bZ7nRFZ0vmyhzavAUOLrkOWc9Jl/VQazlFdG2Nctqek/pcwTyP0iq2/jL 8vqfVYrGnWPVF5iUr7syqKmPOzSKrZ9tMQkp408jbiEXH+AyKWk+2WHW9QBdcff1efHL9eKOCfiK8 cCdIe9jQ==; Received: from canpmsgout10.his.huawei.com ([113.46.200.225]) by desiato.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1w3X2n-0000000FJjq-2s4u for linux-arm-kernel@lists.infradead.org; Fri, 20 Mar 2026 10:25:32 +0000 dkim-signature: v=1; a=rsa-sha256; d=huawei.com; s=dkim; c=relaxed/relaxed; q=dns/txt; h=From; bh=AqM4dA797NdPBjVX5ZCFGXmoCr2YkFCuKkL3jOGIRwY=; b=U2soGMTwGrWXfKlRiDgBbveTkrQS7Yy3ouwmJ3CkkFaZ38RMpZfubkvGQjtPclwTq7KosaYyh eZVshBIwb/evrC6NfsNjm+9N0b2rwq7yfxH2O2YjQ1ViXQi0JwRdOBa6COIqYdmSIQXcsV4vXkM NhG+aYHU7uY4Ccy/ayFQllY= Received: from mail.maildlp.com (unknown [172.19.163.163]) by canpmsgout10.his.huawei.com (SkyGuard) with ESMTPS id 4fcdpP0gq3z1K98k; Fri, 20 Mar 2026 18:19:25 +0800 (CST) Received: from dggpemf500011.china.huawei.com (unknown [7.185.36.131]) by mail.maildlp.com (Postfix) with ESMTPS id 5D2684048B; Fri, 20 Mar 2026 18:25:25 +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; Fri, 20 Mar 2026 18:25:24 +0800 From: Jinjie Ruan To: , , , , , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH v14 04/10] arm64/ptrace: Use syscall_get_arguments() helper for audit Date: Fri, 20 Mar 2026 18:26:14 +0800 Message-ID: <20260320102620.1336796-5-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260320102620.1336796-1-ruanjinjie@huawei.com> References: <20260320102620.1336796-1-ruanjinjie@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.90.53.73] X-ClientProxiedBy: kwepems100002.china.huawei.com (7.221.188.206) To dggpemf500011.china.huawei.com (7.185.36.131) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260320_102530_177674_4BEE3A30 X-CRM114-Status: GOOD ( 10.60 ) 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: 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 85b597cac14b..a908e05749c1 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 ret ? : syscall; } -- 2.34.1