From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 33D81C7618B for ; Tue, 23 Jul 2019 14:48:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0CA0B218F0 for ; Tue, 23 Jul 2019 14:48:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732700AbfGWOsH (ORCPT ); Tue, 23 Jul 2019 10:48:07 -0400 Received: from mail-io1-f70.google.com ([209.85.166.70]:40907 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732571AbfGWOsG (ORCPT ); Tue, 23 Jul 2019 10:48:06 -0400 Received: by mail-io1-f70.google.com with SMTP id v11so47435681iop.7 for ; Tue, 23 Jul 2019 07:48:06 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=KJuDD1pYeLyTEIdlDB5Ulq2vfShQZKEuG0FhGDuKNWU=; b=Zmw3QT6RJsCQh5cfUdU7EMwO+T9UioqBanB4PcjXerTRKnndG/mYsEQnKvBE22U8SS /tythsSXZt+EVML3yx8VBkCjo756mHNI2k8Fp/ctHDlqbjqq8TUAorNVEUkZ0bQcZKpO BatZrVMrr4FjrTm2m1p9xLmHT8jCNoQRuA/rMwJVq9LWQHPy3zsl//dUpW23ke7qmCDo iMYDRdMxfw3EJkI3sUf2BJFnRYWUtlB0jF7i+QvwPoMegjqDS3qxCgi/kW+4JU/mOX5B NUrqnfbsMVtIQRlX7u4GdzMgubKCqYhjOF+NUU3ndO2rVYd/T4k8MOxqcLJybMcMqNMx 67RQ== X-Gm-Message-State: APjAAAX211x6EXxrRoK7rYKwtVSIEdup0LQhycUyKPKZU797sNPjmtX3 EeNrfz8n7My7gGCt+FB+eSFGCGKWvv+43yr4847z2UhJbt7G X-Google-Smtp-Source: APXvYqztMehPCbgahXctUk91afSxsuTCZY9NPOZdyZji9mO1RktsvFtPy75cinCvWTzOCWcHQ+CI0DwcqVxdh+i3fvDtHkQR5bIX MIME-Version: 1.0 X-Received: by 2002:a5d:9d42:: with SMTP id k2mr22261703iok.45.1563893285759; Tue, 23 Jul 2019 07:48:05 -0700 (PDT) Date: Tue, 23 Jul 2019 07:48:05 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000c3c7b6058e5a47af@google.com> Subject: usb-fuzzer boot error: general protection fault in dma_direct_max_mapping_size From: syzbot To: andreyknvl@google.com, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: 1154c0b0 wip git tree: https://github.com/google/kasan.git usb-fuzzer console output: https://syzkaller.appspot.com/x/log.txt?x=1197774c600000 kernel config: https://syzkaller.appspot.com/x/.config?x=b228fb19779df17d dashboard link: https://syzkaller.appspot.com/bug?extid=4efacf59126f1ae87000 compiler: gcc (GCC) 9.0.0 20181231 (experimental) Unfortunately, I don't have any reproducer for this crash yet. IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+4efacf59126f1ae87000@syzkaller.appspotmail.com RPC: Registered udp transport module. RPC: Registered tcp transport module. RPC: Registered tcp NFSv4.1 backchannel transport module. pci 0000:00:00.0: Limiting direct PCI/PCI transfers PCI: CLS 0 bytes, default 64 PCI-DMA: Using software bounce buffering for IO (SWIOTLB) software IO TLB: mapped [mem 0xbbffd000-0xbfffd000] (64MB) RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns clocksource: Switched to clocksource tsc check: Scanning for low memory corruption every 60 seconds Initialise system trusted keyrings workingset: timestamp_bits=40 max_order=21 bucket_order=0 NFS: Registering the id_resolver key type Key type id_resolver registered Key type id_legacy registered 9p: Installing v9fs 9p2000 file system support Key type asymmetric registered Asymmetric key parser 'x509' registered Block layer SCSI generic (bsg) driver version 0.4 loaded (major 247) io scheduler mq-deadline registered io scheduler kyber registered usbcore: registered new interface driver udlfb usbcore: registered new interface driver smscufx input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 ACPI: Power Button [PWRF] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 ACPI: Sleep Button [SLPF] PCI Interrupt Link [LNKC] enabled at IRQ 11 virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver PCI Interrupt Link [LNKD] enabled at IRQ 10 virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A Non-volatile memory driver v1.3 Linux agpgart interface v0.103 usbcore: registered new interface driver udl loop: module loaded usbcore: registered new interface driver rtsx_usb usbcore: registered new interface driver viperboard usbcore: registered new interface driver dln2 usbcore: registered new interface driver pn533_usb usbcore: registered new interface driver port100 usbcore: registered new interface driver nfcmrvl scsi host0: Virtio SCSI HBA kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.3.0-rc1+ #16 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:dma_addressing_limited /./include/linux/dma-mapping.h:692 [inline] RIP: 0010:dma_direct_max_mapping_size+0x73/0x19a /kernel/dma/direct.c:408 Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 1e 01 00 00 48 8b 9d 38 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 06 01 00 00 48 8d bd 48 03 00 00 48 8b 1b 48 b8 RSP: 0000:ffff8881da18f628 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff812d716c RDX: 0000000000000000 RSI: ffffffff812d7189 RDI: ffff8881d7428378 RBP: ffff8881d7428040 R08: ffff8881da180000 R09: ffffed103ade30cb R10: ffffed103ade30ca R11: ffff8881d6f18657 R12: ffff8881d7428040 R13: ffff8881d769e8b0 R14: 0000000000000200 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000006a21000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: dma_max_mapping_size+0xb5/0xf0 /kernel/dma/mapping.c:375 __scsi_init_queue+0x17e/0x510 /drivers/scsi/scsi_lib.c:1787 scsi_mq_alloc_queue+0xcb/0x170 /drivers/scsi/scsi_lib.c:1833 scsi_alloc_sdev+0x82e/0xc50 /drivers/scsi/scsi_scan.c:269 scsi_probe_and_add_lun+0x1ee5/0x2cd0 /drivers/scsi/scsi_scan.c:1078 __scsi_scan_target+0x273/0xc30 /drivers/scsi/scsi_scan.c:1562 scsi_scan_channel.part.0+0x126/0x1a0 /drivers/scsi/scsi_scan.c:1650 scsi_scan_channel /drivers/scsi/scsi_scan.c:1677 [inline] scsi_scan_host_selected+0x2bb/0x3f0 /drivers/scsi/scsi_scan.c:1679 do_scsi_scan_host /drivers/scsi/scsi_scan.c:1817 [inline] do_scsi_scan_host+0x1e8/0x260 /drivers/scsi/scsi_scan.c:1807 scsi_scan_host /drivers/scsi/scsi_scan.c:1847 [inline] scsi_scan_host+0x37c/0x440 /drivers/scsi/scsi_scan.c:1835 virtscsi_probe+0x9b7/0xbb5 /drivers/scsi/virtio_scsi.c:847 virtio_dev_probe+0x463/0x710 /drivers/virtio/virtio.c:248 really_probe+0x281/0x650 /drivers/base/dd.c:548 driver_probe_device+0x101/0x1b0 /drivers/base/dd.c:709 device_driver_attach+0x108/0x140 /drivers/base/dd.c:983 __driver_attach+0xda/0x240 /drivers/base/dd.c:1060 bus_for_each_dev+0x14b/0x1d0 /drivers/base/bus.c:304 bus_add_driver+0x44e/0x5a0 /drivers/base/bus.c:645 driver_register+0x1c4/0x320 /drivers/base/driver.c:170 __write_once_size /./include/linux/compiler.h:226 [inline] INIT_LIST_HEAD /./include/linux/list.h:28 [inline] init+0xa1/0x115 /drivers/char/virtio_console.c:2251 do_one_initcall+0xf0/0x614 /init/main.c:939 do_initcall_level /init/main.c:1007 [inline] do_initcalls /init/main.c:1015 [inline] do_basic_setup /init/main.c:1032 [inline] kernel_init_freeable+0x4a9/0x596 /init/main.c:1192 kernel_init+0xd/0x1bf /init/main.c:1110 ret_from_fork+0x24/0x30 /arch/x86/entry/entry_64.S:352 Modules linked in: ---[ end trace 73ab592d53bc046f ]--- RIP: 0010:dma_addressing_limited /./include/linux/dma-mapping.h:692 [inline] RIP: 0010:dma_direct_max_mapping_size+0x73/0x19a /kernel/dma/direct.c:408 Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 1e 01 00 00 48 8b 9d 38 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 06 01 00 00 48 8d bd 48 03 00 00 48 8b 1b 48 b8 RSP: 0000:ffff8881da18f628 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff812d716c RDX: 0000000000000000 RSI: ffffffff812d7189 RDI: ffff8881d7428378 RBP: ffff8881d7428040 R08: ffff8881da180000 R09: ffffed103ade30cb R10: ffffed103ade30ca R11: ffff8881d6f18657 R12: ffff8881d7428040 R13: ffff8881d769e8b0 R14: 0000000000000200 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000006a21000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- This bug is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this bug report. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.