Hello, syzbot found the following issue on: HEAD commit: dbd91ef4e91c Add linux-next specific files for 20230519 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=15dc2e41280000 kernel config: https://syzkaller.appspot.com/x/.config?x=7c3f91bf21078a94 dashboard link: https://syzkaller.appspot.com/bug?extid=2a0e61ee9fcd4f7fd8ef compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/bf2a6fb63fa5/disk-dbd91ef4.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/3f60e95ad655/vmlinux-dbd91ef4.xz kernel image: https://storage.googleapis.com/syzbot-assets/4097b8dec6a9/bzImage-dbd91ef4.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+2a0e61ee9fcd4f7fd8ef@xxxxxxxxxxxxxxxxxxxxxxxxx Asymmetric key parser 'pkcs8' registered Key type pkcs7_test registered Block layer SCSI generic (bsg) driver version 0.4 loaded (major 240) 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. ------------[ cut here ]------------ refcount_t: decrement hit 0; leaking memory. WARNING: CPU: 1 PID: 1 at lib/refcount.c:31 refcount_warn_saturate+0x1d7/0x1f0 lib/refcount.c:31 Modules linked in: CPU: 1 PID: 1 Comm: swapper/0 Not tainted 6.4.0-rc2-next-20230519-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 RIP: 0010:refcount_warn_saturate+0x1d7/0x1f0 lib/refcount.c:31 Code: 05 cd ec 5e 0a 01 e8 f8 0f 37 fd 0f 0b e9 d3 fe ff ff e8 dc 78 6f fd 48 c7 c7 a0 01 a7 8a c6 05 aa ec 5e 0a 01 e8 d9 0f 37 fd <0f> 0b e9 b4 fe ff ff 48 89 ef e8 ea 92 c2 fd e9 5c fe ff ff 0f 1f RSP: 0000:ffffc900000673e0 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888014e48000 RSI: ffffffff814bd507 RDI: 0000000000000001 RBP: ffff888141b64e24 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001 R13: 0000000000000000 R14: dffffc0000000000 R15: 00000001fd845ca9 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000000c575000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __reset_page_owner+0xf7/0x1c0 mm/page_owner.c:162 reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1159 [inline] __free_pages_ok+0x690/0xf30 mm/page_alloc.c:1298 make_alloc_exact+0x17f/0x260 mm/page_alloc.c:4753 vring_alloc_queue drivers/virtio/virtio_ring.c:311 [inline] vring_alloc_queue+0x7f/0x110 drivers/virtio/virtio_ring.c:303 vring_alloc_queue_split.part.0+0x16c/0x420 drivers/virtio/virtio_ring.c:1078 vring_alloc_queue_split drivers/virtio/virtio_ring.c:1131 [inline] vring_create_virtqueue_split+0x139/0x2f0 drivers/virtio/virtio_ring.c:1128 vring_create_virtqueue+0xdb/0x150 drivers/virtio/virtio_ring.c:2587 setup_vq+0x111/0x2e0 drivers/virtio/virtio_pci_legacy.c:131 vp_setup_vq+0xae/0x3b0 drivers/virtio/virtio_pci_common.c:189 vp_find_vqs_msix+0x760/0xe90 drivers/virtio/virtio_pci_common.c:328 vp_find_vqs+0x58/0x560 drivers/virtio/virtio_pci_common.c:405 virtio_find_vqs include/linux/virtio_config.h:229 [inline] virtscsi_init+0x2e8/0x970 drivers/scsi/virtio_scsi.c:827 virtscsi_probe+0x353/0xc80 drivers/scsi/virtio_scsi.c:884 virtio_dev_probe+0x57b/0x870 drivers/virtio/virtio.c:305 call_driver_probe drivers/base/dd.c:579 [inline] really_probe+0x240/0xca0 drivers/base/dd.c:658 __driver_probe_device+0x1df/0x4b0 drivers/base/dd.c:800 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:830 __driver_attach+0x271/0x570 drivers/base/dd.c:1216 bus_for_each_dev+0x12a/0x1c0 drivers/base/bus.c:368 bus_add_driver+0x2e9/0x640 drivers/base/bus.c:673 driver_register+0x162/0x4a0 drivers/base/driver.c:246 virtio_scsi_init+0x76/0x110 drivers/scsi/virtio_scsi.c:1019 do_one_initcall+0x105/0x630 init/main.c:1239 do_initcall_level init/main.c:1301 [inline] do_initcalls init/main.c:1317 [inline] do_basic_setup init/main.c:1336 [inline] kernel_init_freeable+0x5a4/0x890 init/main.c:1553 kernel_init+0x1e/0x2c0 init/main.c:1444 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 </TASK> --- 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@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the bug is already fixed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to change bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
