From nobody Fri Oct 18 05:18:21 2024 Delivered-To: importer2@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer2=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=linaro.org ARC-Seal: i=1; a=rsa-sha256; t=1662454514; cv=none; d=zohomail.com; s=zohoarc; b=SRMIBMBiK1C1P8zpGRRPa60eGP7HR6b8m8GALtl5PU17YLTrTEHuV8CYcRSWmfwUFBfDWm1xnfBSkoqpDmMOZYW4QRxtTrl4qkc7GEi5hhQieFD/cDw5wK72A+MiWcfULySyh3W8iWOp12nVmWSslc/G8PG58LzCZD/PSD8oRFc= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1662454514; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=SHzx12Rsu42Ye71toTN4bWIrkmgQVEH0DPBud2OqwOk=; b=M4FmEfxYqbkg0oHnC7e3Rt6h98Z1uo6cKUQN9yWg9TLd9oyrel6rpti8YAV9SxnhhgxwFtoLWMZ4yVTUx2y0fvqL9LFQNd5hjTNvxKBTfgW2NleWEqmB7qUrkyr97xr5IMyrywVA4GJ9TGb6HFZX6QpndWObm7nhnMb3YAdf7gQ= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer2=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 16624545147391021.5341848388705; Tue, 6 Sep 2022 01:55:14 -0700 (PDT) Received: from localhost ([::1]:48642 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oVUMT-0000km-HS for importer2@patchew.org; Tue, 06 Sep 2022 04:55:13 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57612) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oVU6E-0002WP-Vt for qemu-devel@nongnu.org; Tue, 06 Sep 2022 04:38:27 -0400 Received: from mail-wr1-x434.google.com ([2a00:1450:4864:20::434]:36854) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1oVU6D-0005UN-5h for qemu-devel@nongnu.org; Tue, 06 Sep 2022 04:38:26 -0400 Received: by mail-wr1-x434.google.com with SMTP id b17so958186wrq.3 for ; Tue, 06 Sep 2022 01:38:24 -0700 (PDT) Received: from localhost.localdomain ([2a02:8084:a5c0:5a80:ba98:3a71:8524:e0b1]) by smtp.gmail.com with ESMTPSA id g26-20020a7bc4da000000b003a54f49c1c8sm13421859wmk.12.2022.09.06.01.38.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 06 Sep 2022 01:38:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date; bh=SHzx12Rsu42Ye71toTN4bWIrkmgQVEH0DPBud2OqwOk=; b=Csjhu9mohES5bPcnQJYCGPV8g0GkPzTdyynIr7qrwep92I6pUW50CffLG1AyYzPoTq S4dA6okoYsC8Hl3GjuMu+7ZOSKVUaPorMmLuLmIVtV2SYepQ/4aCs5PX7ZpVfBCbFUzb jkfIZ43TJtZem5G0nLXaW7DdEwtyxlQkNYhz2KWQIpxy5ZIogULnXL82RNZLV5EBCS1U BsAgnWF7i44XSa1kbe3YeCQhhPT6EtGub1pGB7O45JpjYWUlCeco4C8/363G3ILvyS/U DMR7P8C6WXz5U3E8/WaKGHTxWpGEQwRotYDxFxGrR6ZFks7NNlHSn2H4vE3ayw4nO6Uk xHog== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date; bh=SHzx12Rsu42Ye71toTN4bWIrkmgQVEH0DPBud2OqwOk=; b=IuKbMo9ULFAOlbEgKc3v1KbT1kOFqc8LXEF85VLfi9werS7+R7ONDCftAoB9gk0G8r c68OcfYRZtcZO1DTtV1w/wD3Y61r4kGnkWJDPz4I0IZddljYakNbanmgYWqTAKAlzuNb 29sSzlbfY2wyf6hsJlGvqodgS2b3JNP6t5ulHIjYO3Bf/OGpkC3yPAc52V+rsemXnGIK OIUZGd1KF5jPm56czQSRGNnvqGlLmj56vFS/fRGrh0D6vyOFK/7sYPPIFCvKdoq5oF7Z uvT4LNkU04rcavvW17AIPhrTlS43NHpbNc4v3bW4RDm5l+mdFNh97HRSTqKB4Q/t2vgY MXLg== X-Gm-Message-State: ACgBeo0lbZc8s0o8UMmg9V8I82oXth7h5VWK8Bwq+3QBSXzEAgLl6slA B9F225QoED8Hp1EaD398MmsTXeq6agSllLhI X-Google-Smtp-Source: AA6agR7sZVXB9/RtZu3PWvPFdIqC2BFNsyq6IMWE2+cQXXhrV+sTOuIYBtw5alCYrAjD+VnhMxYpcw== X-Received: by 2002:a5d:584f:0:b0:226:edcd:b467 with SMTP id i15-20020a5d584f000000b00226edcdb467mr15281074wrf.363.1662453503360; Tue, 06 Sep 2022 01:38:23 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: stefanha@gmail.com, Ilya Leoshkevich Subject: [PULL v3 05/20] linux-user: Clear translations on mprotect() Date: Tue, 6 Sep 2022 09:38:00 +0100 Message-Id: <20220906083815.252478-6-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220906083815.252478-1-richard.henderson@linaro.org> References: <20220906083815.252478-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::434; envelope-from=richard.henderson@linaro.org; helo=mail-wr1-x434.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer2=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1662454516786100001 Content-Type: text/plain; charset="utf-8" From: Ilya Leoshkevich Currently it's possible to execute pages that do not have PAGE_EXEC if there is an existing translation block. Fix by invalidating TBs that touch the affected pages. Signed-off-by: Ilya Leoshkevich Message-Id: <20220817150506.592862-2-iii@linux.ibm.com> Signed-off-by: Richard Henderson --- linux-user/mmap.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/linux-user/mmap.c b/linux-user/mmap.c index 048c4135af..6a828e8418 100644 --- a/linux-user/mmap.c +++ b/linux-user/mmap.c @@ -177,9 +177,11 @@ int target_mprotect(abi_ulong start, abi_ulong len, in= t target_prot) goto error; } } + page_set_flags(start, start + len, page_flags); - mmap_unlock(); - return 0; + tb_invalidate_phys_range(start, start + len); + ret =3D 0; + error: mmap_unlock(); return ret; --=20 2.34.1