usb usb1: Requested nonsensical USBDEVFS_URB_SHORT_NOT_OK. INFO: task syz-executor.2:27797 blocked for more than 140 seconds. Not tainted 4.14.298-syzkaller #0 usb usb1: usbfs: process 10166 (syz-executor.4) did not claim interface 6 before use "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D29240 27797 8005 0x00000004 usb usb1: Requested nonsensical USBDEVFS_URB_SHORT_NOT_OK. Call Trace: context_switch kernel/sched/core.c:2811 [inline] __schedule+0x88b/0x1de0 kernel/sched/core.c:3387 schedule+0x8d/0x1b0 kernel/sched/core.c:3431 schedule_timeout+0x80a/0xe90 kernel/time/timer.c:1724 usb usb1: usbfs: interface 0 claimed by usbfs while 'syz-executor.1' sets config #8 do_wait_for_common kernel/sched/completion.c:91 [inline] __wait_for_common kernel/sched/completion.c:112 [inline] wait_for_common+0x272/0x430 kernel/sched/completion.c:123 usb_start_wait_urb+0x125/0x440 drivers/usb/core/message.c:61 usb_bulk_msg+0x1f6/0x500 drivers/usb/core/message.c:252 proc_bulk+0x331/0x6d0 drivers/usb/core/devio.c:1223 usbdev_do_ioctl+0x5b0/0x2b70 drivers/usb/core/devio.c:2449 usbdev_ioctl+0x21/0x30 drivers/usb/core/devio.c:2599 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 Showing all locks held in the system: 1 lock held by khungtaskd/1533: #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4548 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1533 Comm: khungtaskd Not tainted 4.14.298-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 nmi_cpu_backtrace.cold+0x57/0x93 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x13a/0x180 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:140 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:195 [inline] watchdog+0x5b9/0xb40 kernel/hung_task.c:274 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 10163 Comm: syz-executor.0 Not tainted 4.14.298-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 task: ffff8880ae61a4c0 task.stack: ffff8880908a8000 RIP: 0010:copy_xregs_to_kernel arch/x86/include/asm/fpu/internal.h:331 [inline] RIP: 0010:copy_fpregs_to_fpstate arch/x86/include/asm/fpu/internal.h:407 [inline] RIP: 0010:switch_fpu_prepare arch/x86/include/asm/fpu/internal.h:526 [inline] RIP: 0010:__switch_to+0x107/0xf60 arch/x86/kernel/process_64.c:417 RSP: 0018:ffff888083aa7b38 EFLAGS: 00000002 RAX: 00000000ffffffff RBX: ffff8880ae61b940 RCX: 1ffff11015cc35a9 RDX: 00000000ffffffff RSI: 1ffffffff1412412 RDI: ffff8880ae61b980 RBP: ffff888083a9a000 R08: ffff888083a9a430 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880ae61a4c0 R13: ffff8880ae61b980 R14: ffff8880a18092c0 R15: ffff8880ae61b880 FS: 00005555555e0400(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4a33618000 CR3: 00000000b0b5e000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: Code: b6 14 16 38 d0 7c 08 84 d2 0f 85 37 0d 00 00 8b 05 ef 22 ee 08 85 c0 0f 84 bd 0b 00 00 b8 ff ff ff ff 4c 89 ef 89 c2 48 0f ae 37 <31> c0 85 c0 0f 85 ac 0b 00 00 48 b8 00 00 00 00 00 fc ff df 48