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AJvYcCUIvOFgcDhiit1x1W8XnrgF6yPd5NmYSYYzX2D3PLaUFNuiCX8Okc76550t7m13AAxHko3knOjdiXBMD5bLh1sy/LYFw52sLfdAOPZH X-Gm-Message-State: AOJu0YxjW9z7VzVE/LOj/EkmHbjaS7bXHmgtWfoou76Rl+nQa48uY8ha EwQ9iLEJQrtVspw3/2f9Mmgk0p6dMBo/PhKBE1po9a4dK4Ay/vpGxOBB+wQQrWUxFzBhQrxSPj4 /9lMSGacUEr37WhkuM4pZIHykqIsQqWnofg1Ltx68Xh5is8PRXvohEFY= X-Google-Smtp-Source: AGHT+IG+Y1gMkuz614HqXYzh/CuzeSCZP7/kYEkwXAbU3Foh8fjew5oCOlVYKb0EmOR5mG1wuIaWGCQ5ZLseyVoAdV70kMV6Ij8c Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:3288:b0:366:b4c8:2150 with SMTP id bk8-20020a056e02328800b00366b4c82150mr81873ilb.6.1711104259340; Fri, 22 Mar 2024 03:44:19 -0700 (PDT) Date: Fri, 22 Mar 2024 03:44:19 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000008d4beb06143d8165@google.com> Subject: [syzbot] [virtualization?] net-next boot error: WARNING: refcount bug in __free_pages_ok From: syzbot To: davem@davemloft.net, jasowang@redhat.com, kuba@kernel.org, linux-kernel@vger.kernel.org, mst@redhat.com, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, virtualization@lists.linux.dev, xuanzhuo@linux.alibaba.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 537c2e91d354 Merge git://git.kernel.org/pub/scm/linux/kern.. git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=13c8343a180000 kernel config: https://syzkaller.appspot.com/x/.config?x=a5e4ca7f025e9172 dashboard link: https://syzkaller.appspot.com/bug?extid=e58465c446f16bd6191a compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/31c81b152208/disk-537c2e91.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/d91fa59c13e4/vmlinux-537c2e91.xz kernel image: https://storage.googleapis.com/syzbot-assets/31dbb656b1c7/bzImage-537c2e91.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+e58465c446f16bd6191a@syzkaller.appspotmail.com Key type pkcs7_test registered Block layer SCSI generic (bsg) driver version 0.4 loaded (major 239) io scheduler mq-deadline registered io scheduler kyber registered io scheduler bfq registered input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 ACPI: button: Power Button [PWRF] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 ACPI: button: Sleep Button [SLPF] ioatdma: Intel(R) QuickData Technology Driver 5.00 ACPI: \_SB_.LNKC: Enabled at IRQ 11 virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver ACPI: \_SB_.LNKD: Enabled at IRQ 10 virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver ACPI: \_SB_.LNKB: Enabled at IRQ 10 virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver N_HDLC line discipline registered with maxframe=4096 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 ACPI: bus type drm_connector registered [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0 [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1 Console: switching to colour frame buffer device 128x48 platform vkms: [drm] fb0: vkmsdrmfb frame buffer device usbcore: registered new interface driver udl brd: module loaded loop: module loaded zram: Added device: zram0 null_blk: disk nullb0 created null_blk: module loaded Guest personality initialized and is inactive VMCI host device registered (name=vmci, major=10, minor=118) Initialized host personality 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 nfcsim 0.2 initialized usbcore: registered new interface driver port100 usbcore: registered new interface driver nfcmrvl Loading iSCSI transport class v2.0-870. virtio_scsi virtio0: 1/0/0 default/read/poll queues ------------[ cut here ]------------ refcount_t: decrement hit 0; leaking memory. WARNING: CPU: 0 PID: 1 at lib/refcount.c:31 refcount_warn_saturate+0xfa/0x1d0 lib/refcount.c:31 Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.8.0-syzkaller-12821-g537c2e91d354 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 RIP: 0010:refcount_warn_saturate+0xfa/0x1d0 lib/refcount.c:31 Code: b2 00 00 00 e8 d7 d2 e9 fc 5b 5d c3 cc cc cc cc e8 cb d2 e9 fc c6 05 6c 6e e8 0a 01 90 48 c7 c7 60 34 1f 8c e8 67 6f ac fc 90 <0f> 0b 90 90 eb d9 e8 ab d2 e9 fc c6 05 49 6e e8 0a 01 90 48 c7 c7 RSP: 0000:ffffc90000066e18 EFLAGS: 00010246 RAX: c71d06ef88c7c400 RBX: ffff8880214ecb6c RCX: ffff8880166d8000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000004 R08: ffffffff815800c2 R09: fffffbfff1c396e0 R10: dffffc0000000000 R11: fffffbfff1c396e0 R12: ffffea000501fdc0 R13: ffffea000501fdc8 R14: 1ffffd4000a03fb9 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff88823ffff000 CR3: 000000000e132000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1141 [inline] __free_pages_ok+0xc60/0xd90 mm/page_alloc.c:1270 make_alloc_exact+0xa3/0xf0 mm/page_alloc.c:4829 vring_alloc_queue drivers/virtio/virtio_ring.c:319 [inline] vring_alloc_queue_split+0x20a/0x600 drivers/virtio/virtio_ring.c:1108 vring_create_virtqueue_split+0xc6/0x310 drivers/virtio/virtio_ring.c:1158 vring_create_virtqueue+0xca/0x110 drivers/virtio/virtio_ring.c:2683 setup_vq+0xe9/0x2d0 drivers/virtio/virtio_pci_legacy.c:131 vp_setup_vq+0xbf/0x330 drivers/virtio/virtio_pci_common.c:189 vp_find_vqs_msix+0x8b2/0xc80 drivers/virtio/virtio_pci_common.c:331 vp_find_vqs+0x4c/0x4e0 drivers/virtio/virtio_pci_common.c:408 virtio_find_vqs include/linux/virtio_config.h:233 [inline] virtscsi_init+0x8db/0xd00 drivers/scsi/virtio_scsi.c:887 virtscsi_probe+0x3ea/0xf60 drivers/scsi/virtio_scsi.c:945 virtio_dev_probe+0x991/0xaf0 drivers/virtio/virtio.c:311 really_probe+0x2b8/0xad0 drivers/base/dd.c:656 __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:798 driver_probe_device+0x50/0x430 drivers/base/dd.c:828 __driver_attach+0x45f/0x710 drivers/base/dd.c:1214 bus_for_each_dev+0x239/0x2b0 drivers/base/bus.c:368 bus_add_driver+0x347/0x620 drivers/base/bus.c:673 driver_register+0x23a/0x320 drivers/base/driver.c:246 virtio_scsi_init+0x65/0xe0 drivers/scsi/virtio_scsi.c:1083 do_one_initcall+0x248/0x880 init/main.c:1238 do_initcall_level+0x157/0x210 init/main.c:1300 do_initcalls+0x3f/0x80 init/main.c:1316 kernel_init_freeable+0x435/0x5d0 init/main.c:1548 kernel_init+0x1d/0x2b0 init/main.c:1437 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 --- This report 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 issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup