From nobody Mon Apr 13 10:21:36 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=1772913260; cv=none; d=zohomail.com; s=zohoarc; b=Wsa3PDkq7qWoe2714YYykGMRh1G/ZbggCM6xPBMJY/Vcj9UwHReAyliEfQZLyneyJSgviO+u4n0YGxrkBLXf6AshB2+mgwZGclr7nHYm0/dfjw3zwigI+lIw0n6eAlYGdLx/0sIrR/zyxDDng9agNjNLXeK7AvzzNdQ4Jomr4X0= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1772913260; h=Content-Transfer-Encoding:Cc:Cc: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; bh=UQ8oxzqfSkrIuJfoVQVH5xQ2TSlFySjuO0h6N4mKyuA=; b=BrDkIoKLib7lZkvSdHc008irkDFLrLUOFNwEe27+DWGZ3PyIa9OBDwyOu3+wBRZRraLTCwuVp7BOijIm9Xv1/H7awTRgQmuOMWdXBQUPOR8LTy3vpFfPdNm38Kk407pa7NpZoriNwQWz8TiLioU7S+M8kpX81Vcry1yOiqgu6sY= 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 1772913260695899.3975019099214; Sat, 7 Mar 2026 11:54:20 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vyxiC-00088F-DX; Sat, 07 Mar 2026 14:53:20 -0500 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 1vyxiB-000887-Dh for qemu-devel@nongnu.org; Sat, 07 Mar 2026 14:53:19 -0500 Received: from sea.source.kernel.org ([172.234.252.31]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vyxiA-0008Vg-0F for qemu-devel@nongnu.org; Sat, 07 Mar 2026 14:53:19 -0500 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id D035142148; Sat, 7 Mar 2026 19:53:16 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8ACCDC19422; Sat, 7 Mar 2026 19:53:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772913196; bh=fGNhZhGwYx5O0WsKa+ya31k08B1YR0SmQJGqiNNdM0g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gHJTaNqgrfZLtsL9dcqL6eiwgnaRB1WujCx8lyXeP9vFCdg2HjlfvNzhAEAeQ1uZC +B32vU6y/fw+5e/35PQ4SJUdgaI1n4nKqudUVud3B4uB8sR3Tf6fy54gIY7TIzpeo6 GjnTEpBZYix83qv7RW7rKTdmoR6xBvYnd8HoBD/FWPN8WIFDqWH6H3ZpkhdeDVA3wW l8N0eBkdFX5WB4cKkjpkKcmrSgSUvGo46o+LK4Zhr9GdXNvL+uOcnot0tgW6UAx3re DfXWNSFUJGNjnaZVTeREjds4U+zLaZaa/YRG/O2ZBAcgRTtDxAbABpZupIU9d7yIHX Rmg8KtCEqRMPw== From: deller@kernel.org To: qemu-devel@nongnu.org Cc: Richard Henderson , Warner Losh , Laurent Vivier , Pierrick Bouvier , Helge Deller , =?UTF-8?q?Alex=20Benn=C3=A9e?= , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Kyle Evans , Paolo Bonzini Subject: [PATCH 11/12] tests/tcg/multiarch/test-mmap: Check mmaps beyond reserved_va Date: Sat, 7 Mar 2026 20:52:42 +0100 Message-ID: <20260307195243.8813-12-deller@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260307195243.8813-1-deller@kernel.org> References: <20260307195243.8813-1-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=172.234.252.31; envelope-from=deller@kernel.org; helo=sea.source.kernel.org X-Spam_score_int: -3 X-Spam_score: -0.4 X-Spam_bar: / X-Spam_report: (-0.4 / 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, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.819, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.903, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no 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: 1772913263027154100 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