Hello, syzbot found the following issue on: HEAD commit: 47cba14ce6fc Add linux-next specific files for 20230509 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=17e063a8280000 kernel config: https://syzkaller.appspot.com/x/.config?x=d1f55a88ec660cdb dashboard link: https://syzkaller.appspot.com/bug?extid=5b06ded6a65536fa99c2 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/0dff7f749545/disk-47cba14c.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/238b578b8345/vmlinux-47cba14c.xz kernel image: https://storage.googleapis.com/syzbot-assets/2909e3e79ac1/bzImage-47cba14c.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+5b06ded6a65536fa99c2@xxxxxxxxxxxxxxxxxxxxxxxxx Asymmetric key parser 'x509' registered 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 ]------------ WARNING: CPU: 0 PID: 1 at kernel/workqueue.c:5925 workqueue_sysfs_register+0x32c/0x3f0 kernel/workqueue.c:5925 Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.4.0-rc1-next-20230509-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 RIP: 0010:workqueue_sysfs_register+0x32c/0x3f0 kernel/workqueue.c:5925 Code: b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 ac 00 00 00 49 c7 84 24 18 01 00 00 00 00 00 00 eb b1 e8 a4 d4 2f 00 <0f> 0b 41 be ea ff ff ff eb a2 4c 89 ff e8 a2 d3 82 00 e9 9b fe ff RSP: 0000:ffffc90000067910 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000080000 RCX: 0000000000000000 RDX: ffff888140660000 RSI: ffffffff81546bac RDI: 0000000000000005 RBP: ffffc90000067a80 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000080000 R11: 0000000000000000 R12: ffff88801f7ed800 R13: 0000000000000008 R14: ffff88801f7ed960 R15: ffff88801f7ed9c0 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff88823ffff000 CR3: 000000000c571000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> alloc_workqueue+0x637/0x1110 kernel/workqueue.c:4485 scsi_host_alloc+0xd1f/0x11a0 drivers/scsi/hosts.c:513 virtscsi_probe+0x206/0xc80 drivers/scsi/virtio_scsi.c:872 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+0x102/0x540 init/main.c:1246 do_initcall_level init/main.c:1319 [inline] do_initcalls init/main.c:1335 [inline] do_basic_setup init/main.c:1354 [inline] kernel_init_freeable+0x5a4/0x890 init/main.c:1571 kernel_init+0x1e/0x2c0 init/main.c:1462 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
