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[83.50.185.174]) by smtp.gmail.com with ESMTPSA id g124sm5980438wme.28.2021.12.15.12.57.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Dec 2021 12:57:14 -0800 (PST) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Subject: [RFC PATCH 2/3] hw/sd/sdhci: Prohibit DMA accesses to devices Date: Wed, 15 Dec 2021 21:56:55 +0100 Message-Id: <20211215205656.488940-3-philmd@redhat.com> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211215205656.488940-1-philmd@redhat.com> References: <20211215205656.488940-1-philmd@redhat.com> MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=philmd@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=170.10.133.124; envelope-from=philmd@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -34 X-Spam_score: -3.5 X-Spam_bar: --- X-Spam_report: (-3.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.719, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, 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: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Laurent Vivier , Peter Maydell , Thomas Huth , qemu-block@nongnu.org, David Hildenbrand , Jason Wang , Bin Meng , Li Qiang , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Peter Xu , Qiuhao Li , Darren Kenny , Bandan Das , Gerd Hoffmann , Stefan Hajnoczi , "Edgar E . Iglesias" , Alexander Bulekov , Paolo Bonzini Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Philippe Mathieu-Daudé The issue reported by OSS-Fuzz produces the following backtrace: ==447470==ERROR: AddressSanitizer: heap-buffer-overflow READ of size 1 at 0x61500002a080 thread T0 #0 0x71766d47 in sdhci_read_dataport hw/sd/sdhci.c:474:18 #1 0x7175f139 in sdhci_read hw/sd/sdhci.c:1022:19 #2 0x721b937b in memory_region_read_accessor softmmu/memory.c:440:11 #3 0x72171e51 in access_with_adjusted_size softmmu/memory.c:554:18 #4 0x7216f47c in memory_region_dispatch_read1 softmmu/memory.c:1424:16 #5 0x7216ebb9 in memory_region_dispatch_read softmmu/memory.c:1452:9 #6 0x7212db5d in flatview_read_continue softmmu/physmem.c:2879:23 #7 0x7212f958 in flatview_read softmmu/physmem.c:2921:12 #8 0x7212f418 in address_space_read_full softmmu/physmem.c:2934:18 #9 0x721305a9 in address_space_rw softmmu/physmem.c:2962:16 #10 0x7175a392 in dma_memory_rw_relaxed include/sysemu/dma.h:89:12 #11 0x7175a0ea in dma_memory_rw include/sysemu/dma.h:132:12 #12 0x71759684 in dma_memory_read include/sysemu/dma.h:152:12 #13 0x7175518c in sdhci_do_adma hw/sd/sdhci.c:823:27 #14 0x7174bf69 in sdhci_data_transfer hw/sd/sdhci.c:935:13 #15 0x7176aaa7 in sdhci_send_command hw/sd/sdhci.c:376:9 #16 0x717629ee in sdhci_write hw/sd/sdhci.c:1212:9 #17 0x72172513 in memory_region_write_accessor softmmu/memory.c:492:5 #18 0x72171e51 in access_with_adjusted_size softmmu/memory.c:554:18 #19 0x72170766 in memory_region_dispatch_write softmmu/memory.c:1504:16 #20 0x721419ee in flatview_write_continue softmmu/physmem.c:2812:23 #21 0x721301eb in flatview_write softmmu/physmem.c:2854:12 #22 0x7212fca8 in address_space_write softmmu/physmem.c:2950:18 #23 0x721d9a53 in qtest_process_command softmmu/qtest.c:727:9 A DMA descriptor is previously filled in RAM. An I/O access to the device (frames #22 to #16) start the DMA engine (frame #13). The engine fetch the descriptor and execute the request, which itself accesses the SDHCI I/O registers (frame #1 and #0), triggering a re-entrancy issue. Fix by prohibit transactions from the DMA to devices. The DMA engine is thus restricted to memories. Reported-by: OSS-Fuzz (Issue 36391) Resolves: https://gitlab.com/qemu-project/qemu/-/issues/451 Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Thomas Huth --- hw/sd/sdhci.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/hw/sd/sdhci.c b/hw/sd/sdhci.c index fe2f21f0c37..0e5e988927e 100644 --- a/hw/sd/sdhci.c +++ b/hw/sd/sdhci.c @@ -741,6 +741,7 @@ static void sdhci_do_adma(SDHCIState *s) { unsigned int begin, length; const uint16_t block_size = s->blksize & BLOCK_SIZE_MASK; + const MemTxAttrs attrs = { .memory = true }; ADMADescr dscr = {}; MemTxResult res; int i; @@ -794,7 +795,7 @@ static void sdhci_do_adma(SDHCIState *s) res = dma_memory_write(s->dma_as, dscr.addr, &s->fifo_buffer[begin], s->data_count - begin, - MEMTXATTRS_UNSPECIFIED); + attrs); if (res != MEMTX_OK) { break; } @@ -823,7 +824,7 @@ static void sdhci_do_adma(SDHCIState *s) res = dma_memory_read(s->dma_as, dscr.addr, &s->fifo_buffer[begin], s->data_count - begin, - MEMTXATTRS_UNSPECIFIED); + attrs); if (res != MEMTX_OK) { break; } From patchwork Wed Dec 15 20:56:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= X-Patchwork-Id: 12679425 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C3AFFC433EF for ; Wed, 15 Dec 2021 21:00:58 +0000 (UTC) Received: from localhost ([::1]:53114 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mxbOT-00080n-S9 for qemu-devel@archiver.kernel.org; Wed, 15 Dec 2021 16:00:57 -0500 Received: from eggs.gnu.org ([209.51.188.92]:38796) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mxbL8-0001bG-02 for qemu-devel@nongnu.org; Wed, 15 Dec 2021 15:57:30 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:26117) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mxbL4-00059W-PO for qemu-devel@nongnu.org; Wed, 15 Dec 2021 15:57:29 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1639601842; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=vh+8wU32JL1bhYQ0/2idBT2LvjJjYrC1aRBROqGEF/k=; b=VUVkYL+T8KkMBL8jrBgdWDz7wM4oZ7v+RoNHLhpEcR6PFXURPOuBtSmJxsjQ+J+L1NmvKh tlKZtGcAjjsxxOLOVQBZ6oIhMoiiuHOncEUSF15in7PsGbFCPGyEy8Zytq52+f3810VmS9 K5UYY5M/emDIzr5chuSuF1VhRvobEw4= Received: from mail-wm1-f69.google.com (mail-wm1-f69.google.com [209.85.128.69]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-619-9F9a91kfMVWiZDi7QZw9Cw-1; Wed, 15 Dec 2021 15:57:21 -0500 X-MC-Unique: 9F9a91kfMVWiZDi7QZw9Cw-1 Received: by mail-wm1-f69.google.com with SMTP id p13-20020a05600c1d8d00b0034565e7e5c6so1727021wms.9 for ; Wed, 15 Dec 2021 12:57:21 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=vh+8wU32JL1bhYQ0/2idBT2LvjJjYrC1aRBROqGEF/k=; b=HudERy+FtcXYcZqLvuX/+6QO6EqvGoTPQ3sVFPS1sYF3yI+d0JT2iWaXHaBSktI2je qSaXozn4TAgjOL8H95wfqvfU7zZOFLmDWJMFL/Flx8aDgYIg1DN7UXa7IUAycOsEvsPX Iwj43QvdEHxXK5f5tPXac9J6wNPaVJuLNLEDna0VIkzh2SpVeLoUjUYgwDLuqWC14P7v /HYhW+5FmEx8AZAawWEixpFVo9YWUFd0v7E1m4gAsEGHsmyoA7HRoC1XbWdQxwE521kK fK9aiAIDorQg0BE6OuUcsFVLosLnHkbISOVvOs5eLTXjc5MhfWCKCskehqX5pmqNNjtG LVBQ== X-Gm-Message-State: AOAM531B1dAaQHeMnbovJBB5FffWyTH1fd/VZmFkp7Do2UsV8aCj/1tT lwIRNdTmjRKoauLsp8jZkwT+4S0XF0LESlIyTh3g9onSQrGMuml6gP1CKatqarQfa+Q9X5M3mj0 vHTSu2o+hSGcELPfe37BzTM1Sd3qnyafOvsXjBgEPmiyoqbe4oSTfVtmFiKYLfSTE X-Received: by 2002:a5d:59ae:: with SMTP id p14mr6189526wrr.365.1639601840307; Wed, 15 Dec 2021 12:57:20 -0800 (PST) X-Google-Smtp-Source: ABdhPJw37XfrzBqGdGBXoqqYvYaWeB/rahHydYtiV9JcQeFcjTE+l927ViNq/rh1VthRoVcRj5lIFQ== X-Received: by 2002:a5d:59ae:: with SMTP id p14mr6189492wrr.365.1639601839998; Wed, 15 Dec 2021 12:57:19 -0800 (PST) Received: from localhost.localdomain (174.red-83-50-185.dynamicip.rima-tde.net. [83.50.185.174]) by smtp.gmail.com with ESMTPSA id l8sm6536185wmc.40.2021.12.15.12.57.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Dec 2021 12:57:19 -0800 (PST) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Subject: [RFC PATCH 3/3] tests/qtest/fuzz-sdcard-test: Add reproducer for OSS-Fuzz (Issue 29225) Date: Wed, 15 Dec 2021 21:56:56 +0100 Message-Id: <20211215205656.488940-4-philmd@redhat.com> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211215205656.488940-1-philmd@redhat.com> References: <20211215205656.488940-1-philmd@redhat.com> MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=philmd@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=170.10.129.124; envelope-from=philmd@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -34 X-Spam_score: -3.5 X-Spam_bar: --- X-Spam_report: (-3.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.719, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Laurent Vivier , Peter Maydell , Thomas Huth , qemu-block@nongnu.org, David Hildenbrand , Jason Wang , Bin Meng , Li Qiang , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Peter Xu , Qiuhao Li , Darren Kenny , Bandan Das , Gerd Hoffmann , Stefan Hajnoczi , "Edgar E . Iglesias" , Alexander Bulekov , Paolo Bonzini , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Include the qtest reproducer provided by Alexander Bulekov in https://gitlab.com/qemu-project/qemu/-/issues/451. Without the previous commit, we get: $ make check-qtest-i386 ... Running test qtest-i386/fuzz-sdcard-test ==447470==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x61500002a080 at pc 0x564c71766d48 bp 0x7ffc126c62b0 sp 0x7ffc126c62a8 READ of size 1 at 0x61500002a080 thread T0 #0 0x564c71766d47 in sdhci_read_dataport hw/sd/sdhci.c:474:18 #1 0x564c7175f139 in sdhci_read hw/sd/sdhci.c:1022:19 #2 0x564c721b937b in memory_region_read_accessor softmmu/memory.c:440:11 #3 0x564c72171e51 in access_with_adjusted_size softmmu/memory.c:554:18 #4 0x564c7216f47c in memory_region_dispatch_read1 softmmu/memory.c:1424:16 #5 0x564c7216ebb9 in memory_region_dispatch_read softmmu/memory.c:1452:9 #6 0x564c7212db5d in flatview_read_continue softmmu/physmem.c:2879:23 #7 0x564c7212f958 in flatview_read softmmu/physmem.c:2921:12 #8 0x564c7212f418 in address_space_read_full softmmu/physmem.c:2934:18 #9 0x564c721305a9 in address_space_rw softmmu/physmem.c:2962:16 #10 0x564c7175a392 in dma_memory_rw_relaxed include/sysemu/dma.h:89:12 #11 0x564c7175a0ea in dma_memory_rw include/sysemu/dma.h:132:12 #12 0x564c71759684 in dma_memory_read include/sysemu/dma.h:152:12 #13 0x564c7175518c in sdhci_do_adma hw/sd/sdhci.c:823:27 #14 0x564c7174bf69 in sdhci_data_transfer hw/sd/sdhci.c:935:13 #15 0x564c7176aaa7 in sdhci_send_command hw/sd/sdhci.c:376:9 #16 0x564c717629ee in sdhci_write hw/sd/sdhci.c:1212:9 #17 0x564c72172513 in memory_region_write_accessor softmmu/memory.c:492:5 #18 0x564c72171e51 in access_with_adjusted_size softmmu/memory.c:554:18 #19 0x564c72170766 in memory_region_dispatch_write softmmu/memory.c:1504:16 #20 0x564c721419ee in flatview_write_continue softmmu/physmem.c:2812:23 #21 0x564c721301eb in flatview_write softmmu/physmem.c:2854:12 #22 0x564c7212fca8 in address_space_write softmmu/physmem.c:2950:18 #23 0x564c721d9a53 in qtest_process_command softmmu/qtest.c:727:9 0x61500002a080 is located 0 bytes to the right of 512-byte region [0x615000029e80,0x61500002a080) allocated by thread T0 here: #0 0x564c708e1737 in __interceptor_calloc (qemu-system-i386+0x1e6a737) #1 0x7ff05567b5e0 in g_malloc0 (/lib64/libglib-2.0.so.0+0x5a5e0) #2 0x564c71774adb in sdhci_pci_realize hw/sd/sdhci-pci.c:36:5 SUMMARY: AddressSanitizer: heap-buffer-overflow hw/sd/sdhci.c:474:18 in sdhci_read_dataport Shadow bytes around the buggy address: 0x0c2a7fffd3c0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c2a7fffd3d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c2a7fffd3e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c2a7fffd3f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c2a7fffd400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 =>0x0c2a7fffd410:[fa]fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c2a7fffd420: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c2a7fffd430: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c2a7fffd440: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c2a7fffd450: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c2a7fffd460: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa Shadow byte legend (one shadow byte represents 8 application bytes): Addressable: 00 Heap left redzone: fa Freed heap region: fd ==447470==ABORTING Broken pipe ERROR qtest-i386/fuzz-sdcard-test - too few tests run (expected 3, got 2) Signed-off-by: Philippe Mathieu-Daudé Acked-by: Thomas Huth --- tests/qtest/fuzz-sdcard-test.c | 76 ++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) diff --git a/tests/qtest/fuzz-sdcard-test.c b/tests/qtest/fuzz-sdcard-test.c index ae14305344a..6dfe26e983c 100644 --- a/tests/qtest/fuzz-sdcard-test.c +++ b/tests/qtest/fuzz-sdcard-test.c @@ -87,6 +87,81 @@ static void oss_fuzz_36217(void) qtest_quit(s); } +/* + * https://gitlab.com/qemu-project/qemu/-/issues/451 + * Used to trigger a heap buffer overflow. + */ +static void oss_fuzz_36391(void) +{ + QTestState *s; + + s = qtest_init(" -display none -m 4G -nodefaults -nographic" + " -device sdhci-pci,sd-spec-version=3" + " -device sd-card,drive=drv" + " -drive if=none,index=0,file=null-co://,format=raw,id=drv"); + qtest_outl(s, 0xcf8, 0x80001010); + qtest_outl(s, 0xcfc, 0xe0000000); + qtest_outl(s, 0xcf8, 0x80001004); + qtest_outw(s, 0xcfc, 0x7); + qtest_bufwrite(s, 0xe0000005, "\x73", 0x1); + qtest_bufwrite(s, 0xe0000028, "\x55", 0x1); + qtest_bufwrite(s, 0xe000002c, "\x55", 0x1); + qtest_bufwrite(s, 0x0, "\x65", 0x1); + qtest_bufwrite(s, 0x7, "\x69", 0x1); + qtest_bufwrite(s, 0x8, "\x65", 0x1); + qtest_bufwrite(s, 0xf, "\x69", 0x1); + qtest_bufwrite(s, 0x10, "\x65", 0x1); + qtest_bufwrite(s, 0x17, "\x69", 0x1); + qtest_bufwrite(s, 0x18, "\x65", 0x1); + qtest_bufwrite(s, 0x1f, "\x69", 0x1); + qtest_bufwrite(s, 0x20, "\x65", 0x1); + qtest_bufwrite(s, 0x27, "\x69", 0x1); + qtest_bufwrite(s, 0x28, "\x65", 0x1); + qtest_bufwrite(s, 0x2f, "\x69", 0x1); + qtest_bufwrite(s, 0x30, "\x65", 0x1); + qtest_bufwrite(s, 0x37, "\x69", 0x1); + qtest_bufwrite(s, 0x38, "\x65", 0x1); + qtest_bufwrite(s, 0x3f, "\x69", 0x1); + qtest_bufwrite(s, 0x40, "\x65", 0x1); + qtest_bufwrite(s, 0x47, "\x69", 0x1); + qtest_bufwrite(s, 0x48, "\x65", 0x1); + qtest_bufwrite(s, 0xe000000c, "\x55", 0x1); + qtest_bufwrite(s, 0xe000000e, "\x2c", 0x1); + qtest_bufwrite(s, 0xe000000f, "\x5b", 0x1); + qtest_bufwrite(s, 0xe0000010, "\x06\x46", 0x2); + qtest_bufwrite(s, 0x50, "\x65", 0x1); + qtest_bufwrite(s, 0x57, "\x69", 0x1); + qtest_bufwrite(s, 0x58, "\x65", 0x1); + qtest_bufwrite(s, 0x5f, "\x69", 0x1); + qtest_bufwrite(s, 0x60, "\x65", 0x1); + qtest_bufwrite(s, 0x67, "\x69", 0x1); + qtest_bufwrite(s, 0x68, "\x65", 0x1); + qtest_bufwrite(s, 0x6f, "\x69", 0x1); + qtest_bufwrite(s, 0x70, "\x65", 0x1); + qtest_bufwrite(s, 0x77, "\x69", 0x1); + qtest_bufwrite(s, 0x78, "\x65", 0x1); + qtest_bufwrite(s, 0x7f, "\x69", 0x1); + qtest_bufwrite(s, 0x80, "\x65", 0x1); + qtest_bufwrite(s, 0x87, "\x69", 0x1); + qtest_bufwrite(s, 0x88, "\x65", 0x1); + qtest_bufwrite(s, 0x8f, "\x69", 0x1); + qtest_bufwrite(s, 0x90, "\x65", 0x1); + qtest_bufwrite(s, 0x97, "\x69", 0x1); + qtest_bufwrite(s, 0x98, "\x65", 0x1); + qtest_bufwrite(s, 0xe0000026, "\x5a\x06", 0x2); + qtest_bufwrite(s, 0xe0000028, "\x46\xc0\xc9\xc9", 0x4); + qtest_bufwrite(s, 0xe0000028, "\x55", 0x1); + qtest_bufwrite(s, 0xe000002a, "\x5a", 0x1); + qtest_bufwrite(s, 0xa0, "\x65", 0x1); + qtest_bufwrite(s, 0xa5, "\xff", 0x1); + qtest_bufwrite(s, 0xa6, "\xff", 0x1); + qtest_bufwrite(s, 0xa7, "\xdf", 0x1); + qtest_bufwrite(s, 0xe000000c, "\x27", 0x1); + qtest_bufwrite(s, 0xe000000f, "\x55", 0x1); + + qtest_quit(s); +} + int main(int argc, char **argv) { const char *arch = qtest_get_arch(); @@ -96,6 +171,7 @@ int main(int argc, char **argv) if (strcmp(arch, "i386") == 0) { qtest_add_func("fuzz/sdcard/oss_fuzz_29225", oss_fuzz_29225); qtest_add_func("fuzz/sdcard/oss_fuzz_36217", oss_fuzz_36217); + qtest_add_func("fuzz/sdcard/oss_fuzz_36391", oss_fuzz_36391); } return g_test_run();