From nobody Sat Apr 11 23:08:17 2026 Delivered-To: importer@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+importer=patchew.org@nongnu.org; dmarc=pass(p=quarantine dis=none) header.from=kernel.org ARC-Seal: i=1; a=rsa-sha256; t=1773064087; cv=none; d=zohomail.com; s=zohoarc; b=f2BZasq0pyID0Qr6oVmD9C7rHZ9Xm8qjpPdX0cXn9WjBcPf4wX4jCYpgIbKjP0fgygJGvPEnk3DLmWhQddrq5KKR/IVLXpq3NqjbH6mAuPq7erAXqsA/d75iFuO/MIWVYJv8xjuTZigqMJ1X9joJRwlLWE8CIXho4er6WDTvhFI= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1773064087; h=Content-Transfer-Encoding:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To:Cc; bh=UQ8oxzqfSkrIuJfoVQVH5xQ2TSlFySjuO0h6N4mKyuA=; b=J9iZyBa95iQOv3/8KhpXDnUri0CBZihSat0aKeh8NIlr48LogzUPOLk5Yo8YpFoQZ1Rx6ZoskReI0b8TqTyOf0fHKJ6zDTnaQyvPX1b9/pByraJwDL7DbRYesk9lhd7mg3mYr00AAb689EO3kVjA9FQfLpFN5Z+Abfxsyr/4tVE= 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+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=quarantine dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1773064087657892.857457293537; Mon, 9 Mar 2026 06:48:07 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vzaxd-00043N-EW; Mon, 09 Mar 2026 09:47:53 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vzaxU-0003yU-3q for qemu-devel@nongnu.org; Mon, 09 Mar 2026 09:47:47 -0400 Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vzaxP-00067q-LU for qemu-devel@nongnu.org; Mon, 09 Mar 2026 09:47:43 -0400 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id EDCEF40657 for ; Mon, 9 Mar 2026 13:47:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 55AACC4CEF7 for ; Mon, 9 Mar 2026 13:47:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773064042; bh=fGNhZhGwYx5O0WsKa+ya31k08B1YR0SmQJGqiNNdM0g=; h=From:To:Subject:Date:In-Reply-To:References:From; b=Mb4+Ih0in3QH04vck+nRjMXiGw51U/O5qGbmQg9d/HTPvtzhgW33C3FtwqBGZvyrj ytWGlQ1NRzmA9o3lOWZxfU8t0W9ggmxwEJA+URyso+wE0mQVneAS9BBS5QArVEAYbK 46CxZqBjCsouAiNYjvgykowEAV35HqPSe3Xj0nJ5UVUd9R9rVpebFJoRAP9UMOjkMJ 89l+3Py1NJqHua6k4+qBDsKvRmzyRxCVMr4tDaYwy52Cuimhx/5M27FcCZsc6FECrf x5yAcjNWGwpelWR9TH2VKKLTFYPQ82s3p1izpzOGbYFpOSw3qhVoSanXuSoHgDN7Bu +jO6dW0OaC5iA== From: Helge Deller To: qemu-devel@nongnu.org Subject: [PULL 09/10] tests/tcg/multiarch/test-mmap: Check mmaps beyond reserved_va Date: Mon, 9 Mar 2026 14:47:10 +0100 Message-ID: <20260309134711.5312-10-deller@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260309134711.5312-1-deller@kernel.org> References: <20260309134711.5312-1-deller@kernel.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+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2600:3c0a:e001:78e:0:1991:8:25; envelope-from=deller@kernel.org; helo=sea.source.kernel.org 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, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @kernel.org) X-ZM-MESSAGEID: 1773064089246154100 Content-Type: text/plain; charset="utf-8" From: Bingwu Zhang Unfixed mmap calls where start > reserved_va or the max guest addr should have a valid result. Signed-off-by: Bingwu Zhang Signed-off-by: Helge Deller --- tests/tcg/multiarch/test-mmap.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/tests/tcg/multiarch/test-mmap.c b/tests/tcg/multiarch/test-mma= p.c index 88f7a04101..2bfa529127 100644 --- a/tests/tcg/multiarch/test-mmap.c +++ b/tests/tcg/multiarch/test-mmap.c @@ -497,6 +497,20 @@ void check_shrink_mmaps(void) fprintf(stdout, " passed\n"); } =20 +void check_mmaps_beyond_addr_space(void) +{ + unsigned char *addr; + addr =3D mmap((void *)(-(unsigned long)pagesize * 10), pagesize * 2, + PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); + fprintf(stdout, "%s addr=3D%p errno=3D%d", __func__, (void *)addr, err= no); + fail_unless(addr !=3D MAP_FAILED); + + memcpy(dummybuf, addr, 2 * pagesize); + munmap(addr, 2 * pagesize); + + fprintf(stdout, " passed\n"); +} + int main(int argc, char **argv) { char tempname[] =3D "/tmp/.cmmapXXXXXX"; @@ -540,6 +554,7 @@ int main(int argc, char **argv) check_file_unfixed_eof_mmaps(); check_invalid_mmaps(); check_shrink_mmaps(); + check_mmaps_beyond_addr_space(); =20 /* Fails at the moment. */ /* check_aligned_anonymous_fixed_mmaps_collide_with_host(); */ --=20 2.53.0