Message ID | 20201029172901.534442-4-alxndr@bu.edu (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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Thu, 29 Oct 2020 17:29:19 +0000 From: Alexander Bulekov <alxndr@bu.edu> To: qemu-devel@nongnu.org Subject: [PATCH-for-5.2 3/3] fuzz: fuzz offsets within pio/mmio regions Date: Thu, 29 Oct 2020 13:29:00 -0400 Message-Id: <20201029172901.534442-4-alxndr@bu.edu> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201029172901.534442-1-alxndr@bu.edu> References: <20201029172901.534442-1-alxndr@bu.edu> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [72.93.72.163] X-ClientProxiedBy: BL0PR01CA0005.prod.exchangelabs.com (2603:10b6:208:71::18) To SN6PR03MB3871.namprd03.prod.outlook.com (2603:10b6:805:6d::32) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from stormtrooper.vrmnet (72.93.72.163) by BL0PR01CA0005.prod.exchangelabs.com (2603:10b6:208:71::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3499.18 via Frontend Transport; Thu, 29 Oct 2020 17:29:18 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 250d21d6-e781-4d0b-ff53-08d87c302ab7 X-MS-TrafficTypeDiagnostic: SA0PR03MB5531: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: <SA0PR03MB5531BC0471CFF5FE182058BEBA140@SA0PR03MB5531.namprd03.prod.outlook.com> X-MS-Oob-TLC-OOBClassifiers: OLM:2043; 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Series |
Bug-fixes for the generic-fuzzer
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expand
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diff --git a/tests/qtest/fuzz/generic_fuzz.c b/tests/qtest/fuzz/generic_fuzz.c index 31f24ad06f..5770f86be6 100644 --- a/tests/qtest/fuzz/generic_fuzz.c +++ b/tests/qtest/fuzz/generic_fuzz.c @@ -298,6 +298,11 @@ static bool get_io_address(address_range *result, AddressSpace *as, } while (cb_info.index != index && !cb_info.found); *result = cb_info.result; + if (result->size) { + offset = offset % result->size; + result->addr += offset; + result->size -= offset; + } return cb_info.found; }
The code did not add offsets to FlatRange bases, so we did not fuzz offsets within device MemoryRegions. Signed-off-by: Alexander Bulekov <alxndr@bu.edu> --- tests/qtest/fuzz/generic_fuzz.c | 5 +++++ 1 file changed, 5 insertions(+)