From nobody Tue Apr 7 21:45:22 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=1773241958; cv=none; d=zohomail.com; s=zohoarc; b=HhpalWAgWn2Z1/UAjHaRrAEbQ4swZ/XGAD5HZvSM5gqGNoyobUDp6FMk7PqTobkF38ER6h4vhz3cmx/+k7GUS+HmFMPS8DoRRKGI72iVUpdvuRmQisw37CRYt7AMDTlSHb5b46wggaMnz48u8dlGT8SwUmn0hzRpt4f9XtaDkd0= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1773241958; 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=aCqqIBrvGbCnBV11NQzAhFV8olsqIElHTumqN9Za/7DwUVDaEQSQPkMIrjSDZabY8Ihp/BUGdHSRL/OncC2iB6xh3fdomuA0Bw2fSZRVoI0eWf5sVu507oqPEdSLcZqwB3HpXY49DQWHGOC/xFl2OgYXtTq8V/726/VNocjf9co= 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 1773241958811466.37632073342775; Wed, 11 Mar 2026 08:12:38 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1w0LEN-0007bC-0r; Wed, 11 Mar 2026 11:12:15 -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 1w0LD7-0003az-Ig; Wed, 11 Mar 2026 11:11:01 -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 1w0LD5-00067g-Pr; Wed, 11 Mar 2026 11:10:57 -0400 Received: from tsrv.corpit.ru (tsrv.tls.msk.ru [192.168.177.2]) by isrv.corpit.ru (Postfix) with ESMTP id 0E8DE191EAD; Wed, 11 Mar 2026 18:04:44 +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 F10AF37C2EE; Wed, 11 Mar 2026 18:05:21 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=tls.msk.ru; s=202602; t=1773241484; bh=+W3eicgXEE2AmYSo7J29g83NNYv1Bgs92Oh+32965CA=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=adbfE1GZj0+J4NvKhdhMj3LDmE6GygSWSuyvsfbGNWrfztrcOEhQwQbZarMtIb2Sd UDR9EpaiS+wOlEakcZ9uiO2fXctflORFRa8OeUuV48qDIYk42waFscd2MTwQ3jGJRc ox4caIJfPYnwEycrCSxU3MqXTq6sfrPe5FFPPvtTFcez7T8KpDvRuWzEBkPLQImdCR GAaKGCQfSSk+Mg6teqM4mqUdWj3XBu0nSvFd+592PqiaDHdoEYl0Z/n4bPHJgD7WDq FFEQxlPlc17fUm/Al8QX9NgkN8FSXf/Cun8+HDWKJdCxdaj7HlgR0bXHT9OOhlaNe8 F+FZadrQ5l+/Q== From: Michael Tokarev To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org, Bingwu Zhang , Helge Deller , Michael Tokarev Subject: [Stable-10.1.5 42/46] tests/tcg/multiarch/test-mmap: Check mmaps beyond reserved_va Date: Wed, 11 Mar 2026 18:03:18 +0300 Message-ID: <20260311150327.1084669-42-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: 1773241961236154100 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