From nobody Tue Apr 7 21:45:21 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 ARC-Seal: i=1; a=rsa-sha256; t=1773242942; cv=none; d=zohomail.com; s=zohoarc; b=MRMsQ4JanCRVxiLDHw8FNL6pBbEnKU11Yz70L9cth4glAtctPx4emXZis6VTgZeubpaXhxreENAPtUQfU1vCOT8I3ernKtWQovDhAY/Fy6vOZ47sTvYATzVP4jhhBKYG9WzUtENnV6wMdqgBh2ziVoVyZ/cgM6joO4aqfrq5GD0= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1773242942; 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=DMAAGrsm3kVk7l/bXuA2rKxaEQt3VPXYmmmROQgvT5o=; b=Vxb9X/Cy8EAQuoU5JWfZPIAhPu9ZjAsOfyf1Yl4Y1+saSLV5lVRE+GZMWwnLXyVRuBAnm/v6sMn3U0OYxU2UkXgcGuVUAzsN8BT5EHyGouTlU85YFles+IdTUMNhHDa/adOg0VxDatfSqTfO8vmjTuBJL3rcwFkF3/32Yq1J48s= 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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 17732429428481002.6806557158558; Wed, 11 Mar 2026 08:29:02 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1w0LBd-0000WJ-9U; Wed, 11 Mar 2026 11:09:27 -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 1w0L8J-0002br-LY; Wed, 11 Mar 2026 11:06:00 -0400 Received: from isrv.corpit.ru ([212.248.84.144]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1w0L8H-0004lt-RD; Wed, 11 Mar 2026 11:05:59 -0400 Received: from tsrv.corpit.ru (tsrv.tls.msk.ru [192.168.177.2]) by isrv.corpit.ru (Postfix) with ESMTP id 36122191E66; Wed, 11 Mar 2026 18:01:46 +0300 (MSK) Received: from think4mjt.tls.msk.ru (mjtthink.wg.tls.msk.ru [192.168.177.146]) by tsrv.corpit.ru (Postfix) with ESMTP id 23AA837C2B8; Wed, 11 Mar 2026 18:02:24 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=tls.msk.ru; s=202602; t=1773241306; bh=+W3eicgXEE2AmYSo7J29g83NNYv1Bgs92Oh+32965CA=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=hVdUtmkBfcuQ+wjdrm+xpgZLikrBeKB3iPd0WschJw4ZbEEOED4AV6yqla+6zTIO5 x+h4w4LgkRm+f5hNJ5y20Fo+kNoljUVzkFuY71mKdpatVgnd8ddLSJ+CHmg8DY/dk3 fHJnZEqT/M2lz/3TxLiCqoTPZ0pT3R5YE4BBzaB5u8/n8e0DANFEYTWOMg4l6rnO9C J5GdrtMmOGzffc6+ZFcJe/dkkXuWJl+Djq/vTQG/ktH4OYhc6GxZT6TheP2cgl2URq QeuP9V0Hg4LGkYK5HogbRsqqfuW2cvxgTxCchBteEElnYB+E5vSNNvytbseSpSztYv P/eQ5hWFjpe6A== From: Michael Tokarev To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org, Bingwu Zhang , Helge Deller , Michael Tokarev Subject: [Stable-10.0.9 40/44] tests/tcg/multiarch/test-mmap: Check mmaps beyond reserved_va Date: Wed, 11 Mar 2026 18:02:12 +0300 Message-ID: <20260311150221.1084186-40-mjt@tls.msk.ru> X-Mailer: git-send-email 2.47.3 In-Reply-To: References: 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=212.248.84.144; envelope-from=mjt@tls.msk.ru; helo=isrv.corpit.ru X-Spam_score_int: -2 X-Spam_score: -0.3 X-Spam_bar: / X-Spam_report: (-0.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-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 @tls.msk.ru) X-ZM-MESSAGEID: 1773242945170154100 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 (cherry picked from commit c865b6bce5d0c882b86fb7c3512174cdaf235017) Signed-off-by: Michael Tokarev diff --git a/tests/tcg/multiarch/test-mmap.c b/tests/tcg/multiarch/test-mma= p.c index e297f4b1e9..fd9055a90e 100644 --- a/tests/tcg/multiarch/test-mmap.c +++ b/tests/tcg/multiarch/test-mmap.c @@ -491,6 +491,20 @@ void check_shrink_mmaps(void) munmap(c, 2 * pagesize); } =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"; @@ -534,6 +548,7 @@ 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 2.47.3