Hello, syzbot found the following issue on: HEAD commit: c6d9e43954bf Merge 6.12-rc4 into usb-next git tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing console output: https://syzkaller.appspot.com/x/log.txt?x=139f225f980000 kernel config: https://syzkaller.appspot.com/x/.config?x=4a2bb21f91d75c65 dashboard link: https://syzkaller.appspot.com/bug?extid=0ca979b86eaec7337a89 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=179f225f980000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/3bf4a453ec2f/disk-c6d9e439.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/e4a2db2a5d95/vmlinux-c6d9e439.xz kernel image: https://storage.googleapis.com/syzbot-assets/8eb8e481b288/bzImage-c6d9e439.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+0ca979b86eaec7337a89@xxxxxxxxxxxxxxxxxxxxxxxxx rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-...D } 2686 jiffies s: 2593 root: 0x2/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 0 to CPUs 1: poll_schedule_timeout.constprop.0+0xba/0x190 fs/select.c:241 NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 19905 Comm: modprobe Not tainted 6.12.0-rc4-syzkaller-00052-gc6d9e43954bf #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:io_serial_out+0x8f/0xb0 drivers/tty/serial/8250/8250_port.c:413 Code: 48 8d 7d 40 44 89 e1 48 b8 00 00 00 00 00 fc ff df 48 89 fa d3 e3 48 c1 ea 03 80 3c 02 00 75 1c 66 03 5d 40 44 89 e8 89 da ee <5b> 5d 41 5c 41 5d c3 cc cc cc cc e8 31 f0 0d ff eb a0 e8 ba f0 0d RSP: 0018:ffffc900001b7f58 EFLAGS: 00000002 RAX: 0000000000000034 RBX: 00000000000003f8 RCX: 0000000000000000 RDX: 00000000000003f8 RSI: ffffffff82a08975 RDI: ffffffff93637660 RBP: ffffffff93637620 R08: 0000000000000001 R09: 000000000000001f R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000034 R14: ffffffff82a08910 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881f5900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200012b8 CR3: 000000011b4b4000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <NMI> </NMI> <IRQ> serial_out drivers/tty/serial/8250/8250.h:142 [inline] serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3322 [inline] serial8250_console_write+0xf9e/0x17c0 drivers/tty/serial/8250/8250_port.c:3393 console_emit_next_record kernel/printk/printk.c:3092 [inline] console_flush_all+0x800/0xc60 kernel/printk/printk.c:3180 __console_flush_and_unlock kernel/printk/printk.c:3239 [inline] console_unlock+0xd9/0x210 kernel/printk/printk.c:3279 vprintk_emit+0x424/0x6f0 kernel/printk/printk.c:2407 vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:68 _printk+0xc8/0x100 kernel/printk/printk.c:2432 printk_stack_address arch/x86/kernel/dumpstack.c:72 [inline] show_trace_log_lvl+0x21f/0x3d0 arch/x86/kernel/dumpstack.c:285 sched_show_task kernel/sched/core.c:7604 [inline] sched_show_task+0x3f0/0x5f0 kernel/sched/core.c:7579 show_state_filter+0xee/0x320 kernel/sched/core.c:7649 k_spec drivers/tty/vt/keyboard.c:667 [inline] k_spec+0xed/0x150 drivers/tty/vt/keyboard.c:656 kbd_keycode drivers/tty/vt/keyboard.c:1522 [inline] kbd_event+0xcbd/0x17a0 drivers/tty/vt/keyboard.c:1541 input_handler_events_default+0x116/0x1b0 drivers/input/input.c:2549 input_pass_values+0x777/0x8e0 drivers/input/input.c:126 input_event_dispose drivers/input/input.c:352 [inline] input_handle_event+0xb30/0x14d0 drivers/input/input.c:369 input_event drivers/input/input.c:398 [inline] input_event+0x83/0xa0 drivers/input/input.c:390 hidinput_hid_event+0xa12/0x2410 drivers/hid/hid-input.c:1719 hid_process_event+0x4b7/0x5e0 drivers/hid/hid-core.c:1540 hid_input_array_field+0x535/0x710 drivers/hid/hid-core.c:1652 hid_process_report drivers/hid/hid-core.c:1694 [inline] hid_report_raw_event+0xa02/0x11c0 drivers/hid/hid-core.c:2040 __hid_input_report.constprop.0+0x341/0x440 drivers/hid/hid-core.c:2110 hid_irq_in+0x35e/0x870 drivers/hid/usbhid/hid-core.c:285 __usb_hcd_giveback_urb+0x389/0x6e0 drivers/usb/core/hcd.c:1650 usb_hcd_giveback_urb+0x396/0x450 drivers/usb/core/hcd.c:1734 dummy_timer+0x17f0/0x3930 drivers/usb/gadget/udc/dummy_hcd.c:1993 __run_hrtimer kernel/time/hrtimer.c:1691 [inline] __hrtimer_run_queues+0x20a/0xae0 kernel/time/hrtimer.c:1755 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1772 handle_softirqs+0x206/0x8d0 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu kernel/softirq.c:637 [inline] irq_exit_rcu+0xac/0x110 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1049 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:ma_dead_node lib/maple_tree.c:561 [inline] RIP: 0010:mas_prev_node+0x197/0x10b0 lib/maple_tree.c:4476 Code: 0f 84 58 ff ff ff bb 01 00 00 00 e8 23 0b 74 fa 89 d8 48 83 c4 38 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc e8 09 0b 74 fa <48> b8 00 00 00 00 00 fc ff df 48 89 ea 48 c1 ea 03 80 3c 02 00 0f RSP: 0018:ffffc900037e7628 EFLAGS: 00000293 RAX: 0000000000000000 RBX: ffffc900037e7760 RCX: ffffffff86e1e691 RDX: ffff88811adc57c0 RSI: ffffffff86e1e7b7 RDI: 0000000000000007 RBP: ffff88811dd9e200 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffffc900037e7778 R15: ffff88811dd9e400 mas_dfs_postorder lib/maple_tree.c:7089 [inline] mt_validate+0x2203/0x41b0 lib/maple_tree.c:7607 validate_mm+0xae/0x4d0 mm/vma.c:534 vms_complete_munmap_vmas+0x62c/0x9a0 mm/vma.c:1159 mmap_region+0x4ce/0x2910 mm/mmap.c:1543 do_mmap+0xc00/0xfc0 mm/mmap.c:496 vm_mmap_pgoff+0x1ba/0x350 mm/util.c:588 ksys_mmap_pgoff+0x32c/0x5c0 mm/mmap.c:542 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:86 [inline] __se_sys_mmap arch/x86/kernel/sys_x86_64.c:79 [inline] __x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:79 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f551d6a0b74 Code: 63 08 44 89 e8 5b 41 5c 41 5d c3 41 89 ca 41 f7 c1 ff 0f 00 00 74 0c c7 05 f5 46 01 00 16 00 00 00 eb 17 b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 0c f7 d8 89 05 dc 46 01 00 48 83 c8 ff c3 0f RSP: 002b:00007fffe534c9e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007fffe534ca60 RCX: 00007f551d6a0b74 RDX: 0000000000000001 RSI: 0000000000053000 RDI: 00007f551d554000 RBP: 00007fffe534d180 R08: 0000000000000000 R09: 000000000014b000 R10: 0000000000000812 R11: 0000000000000246 R12: 00007f551d67d5c0 R13: 00007fffe534d208 R14: 000000000014ab8e R15: 0000000000000000 </TASK> do_poll fs/select.c:964 [inline] do_sys_poll+0xad5/0xde0 fs/select.c:1015 __do_sys_ppoll fs/select.c:1121 [inline] __se_sys_ppoll fs/select.c:1101 [inline] __x64_sys_ppoll+0x25a/0x2d0 fs/select.c:1101 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0b86606ad5 RSP: 002b:00007ffc505a9cb0 EFLAGS: 00000246 ORIG_RAX: 000000000000010f RAX: ffffffffffffffda RBX: 0000560d8c2afee0 RCX: 00007f0b86606ad5 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000560d8c2b8fe0 RBP: 00007ffc505aa000 R08: 0000000000000008 R09: 0000560d5ee1d3d0 R10: 00007ffc505aa000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000560d5ee1d610 R14: 0000000000000003 R15: 0000000000000000 </TASK> task:dhcpcd state:S stack:26928 pid:2589 tgid:2589 ppid:2586 flags:0x00000002 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 schedule_hrtimeout_range_clock+0x369/0x3b0 kernel/time/hrtimer.c:2272 poll_schedule_timeout.constprop.0+0xba/0x190 fs/select.c:241 do_poll fs/select.c:964 [inline] do_sys_poll+0xad5/0xde0 fs/select.c:1015 __do_sys_ppoll fs/select.c:1121 [inline] __se_sys_ppoll fs/select.c:1101 [inline] __x64_sys_ppoll+0x25a/0x2d0 fs/select.c:1101 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0b86606ad5 RSP: 002b:00007ffc505a9cb0 EFLAGS: 00000246 ORIG_RAX: 000000000000010f RAX: ffffffffffffffda RBX: 0000560d8c2afee0 RCX: 00007f0b86606ad5 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000560d8c2b8fe0 RBP: 00007ffc505aa000 R08: 0000000000000008 R09: 0000560d5ee1d3d0 R10: 00007ffc505aa000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000560d5ee1d610 R14: 0000000000000000 R15: 0000000000000000 </TASK> task:sshd state:S stack:27504 pid:2605 tgid:2605 ppid:1 flags:0x00000002 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 schedule_hrtimeout_range_clock+0x369/0x3b0 kernel/time/hrtimer.c:2272 poll_schedule_timeout.constprop.0+0xba/0x190 fs/select.c:241 do_poll fs/select.c:964 [inline] do_sys_poll+0xad5/0xde0 fs/select.c:1015 __do_sys_ppoll fs/select.c:1121 [inline] __se_sys_ppoll fs/select.c:1101 [inline] __x64_sys_ppoll+0x25a/0x2d0 fs/select.c:1101 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f05620eaad5 RSP: 002b:00007ffde59a6300 EFLAGS: 00000246 ORIG_RAX: 000000000000010f RAX: ffffffffffffffda RBX: 0000562e1fb6ea80 RCX: 00007f05620eaad5 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000562e1fb74900 RBP: 0000000000000064 R08: 0000000000000008 R09: 0000000000000000 R10: 00007ffde59a64b8 R11: 0000000000000246 R12: 0000562e1fb74900 R13: 00007ffde59a64b8 R14: 0000000000000002 R15: 0000562e1fb748ec </TASK> task:getty state:S stack:25424 pid:2607 tgid:2607 ppid:1 flags:0x00000002 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 schedule_timeout+0x258/0x2a0 kernel/time/timer.c:2591 wait_woken+0x175/0x1c0 kernel/sched/wait.c:423 n_tty_read+0x10fb/0x1480 drivers/tty/n_tty.c:2277 iterate_tty_read drivers/tty/tty_io.c:856 [inline] tty_read+0x30e/0x5b0 drivers/tty/tty_io.c:931 new_sync_read fs/read_write.c:488 [inline] vfs_read+0x86e/0xbd0 fs/read_write.c:569 ksys_read+0x12f/0x260 fs/read_write.c:712 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6c70d89b6a RSP: 002b:00007ffc9581ce88 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00005583c32fe2c0 RCX: 00007f6c70d89b6a RDX: 0000000000000001 RSI: 00007ffc9581cea0 RDI: 0000000000000000 RBP: 00005583c32fe320 R08: 0000000000000000 R09: 9daa30ea851d932b R10: 0000000000000010 R11: 0000000000000246 R12: 00005583c32fe35c R13: 00007ffc9581cea0 R14: 0000000000000000 R15: 00005583c32fe35c </TASK> task:dhcpcd state:S stack:26368 pid:2609 tgid:2609 ppid:2587 flags:0x00000002 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 schedule_hrtimeout_range_clock+0x369/0x3b0 kernel/time/hrtimer.c:2272 poll_schedule_timeout.constprop.0+0xba/0x190 fs/select.c:241 do_poll fs/select.c:964 [inline] do_sys_poll+0xad5/0xde0 fs/select.c:1015 __do_sys_ppoll fs/select.c:1121 [inline] __se_sys_ppoll fs/select.c:1101 [inline] __x64_sys_ppoll+0x25a/0x2d0 fs/select.c:1101 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0b86606ad5 RSP: 002b:00007ffc505a9cb0 EFLAGS: 00000246 ORIG_RAX: 000000000000010f RAX: ffffffffffffffda RBX: 0000560d8c2afee0 RCX: 00007f0b86606ad5 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000560d8c2bad50 RBP: 00007ffc505aa000 R08: 0000000000000008 R09: 0000000000000000 R10: 00007ffc505aa000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000560d5ee1d610 R14: 0000000000000000 R15: 0000000000000000 </TASK> task:sshd state:S stack:25424 pid:2648 tgid:2648 ppid:2605 flags:0x00000002 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 schedule_hrtimeout_range_clock+0x272/0x3b0 kernel/time/hrtimer.c:2281 poll_schedule_timeout.constprop.0+0xba/0x190 fs/select.c:241 do_poll fs/select.c:964 [inline] do_sys_poll+0xad5/0xde0 fs/select.c:1015 __do_sys_ppoll fs/select.c:1121 [inline] __se_sys_ppoll fs/select.c:1101 [inline] __x64_sys_ppoll+0x25a/0x2d0 fs/select.c:1101 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa545e84ad5 RSP: 002b:00007fff2db4b070 EFLAGS: 00000246 ORIG_RAX: 000000000000010f RAX: ffffffffffffffda RBX: 00000000000668a0 RCX: 00007fa545e84ad5 RDX: 00007fff2db4b090 RSI: 0000000000000004 RDI: 000055bf5a7a8b00 RBP: 000055bf5a7a75c0 R08: 0000000000000008 R09: 0000000000000000 R10: 00007fff2db4b178 R11: 0000000000000246 R12: 000055bf2267aaa4 R13: 0000000000000001 R14: 000055bf2267b3e8 R15: 00007fff2db4b0f8 </TASK> task:syz-execprog state:S stack:25424 pid:2650 tgid:2650 ppid:2648 flags:0x00000000 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 do_wait+0x1dd/0x570 kernel/exit.c:1697 kernel_waitid+0x116/0x180 kernel/exit.c:1775 __do_sys_waitid+0x212/0x250 kernel/exit.c:1788 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x40708e RSP: 002b:000000c000079d60 EFLAGS: 00000212 ORIG_RAX: 00000000000000f7 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 000000000040708e RDX: 000000c000079e48 RSI: 0000000000000a5f RDI: 0000000000000001 RBP: 000000c000079da0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000001000004 R11: 0000000000000212 R12: 000000c000079e90 R13: 0000000000000000 R14: 000000c001fe1180 R15: 0000000000000001 </TASK> task:syz-execprog state:S stack:27856 pid:2651 tgid:2650 ppid:2648 flags:0x00000000 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 futex_wait_queue+0xfc/0x1f0 kernel/futex/waitwake.c:370 __futex_wait+0x291/0x3c0 kernel/futex/waitwake.c:669 futex_wait+0xe9/0x380 kernel/futex/waitwake.c:697 do_futex+0x22b/0x350 kernel/futex/syscalls.c:102 __do_sys_futex kernel/futex/syscalls.c:179 [inline] __se_sys_futex kernel/futex/syscalls.c:160 [inline] __x64_sys_futex+0x1e1/0x4c0 kernel/futex/syscalls.c:160 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x476343 RSP: 002b:000000c000061e80 EFLAGS: 00000202 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000476343 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000004038860 RBP: 000000c000061ec8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c000061eb8 R11: 0000000000000202 R12: 000000c000061eb8 R13: 000000c00007e008 R14: 000000c000006540 R15: 0fffffffffffffff </TASK> task:syz-execprog state:S stack:27360 pid:2652 tgid:2650 ppid:2648 flags:0x00000000 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 futex_wait_queue+0xfc/0x1f0 kernel/futex/waitwake.c:370 __futex_wait+0x291/0x3c0 kernel/futex/waitwake.c:669 futex_wait+0xe9/0x380 kernel/futex/waitwake.c:697 do_futex+0x22b/0x350 kernel/futex/syscalls.c:102 __do_sys_futex kernel/futex/syscalls.c:179 [inline] __se_sys_futex kernel/futex/syscalls.c:160 [inline] __x64_sys_futex+0x1e1/0x4c0 kernel/futex/syscalls.c:160 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x476343 RSP: 002b:000000c00007b6e0 EFLAGS: 00000286 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000476343 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000040abfa0 RBP: 000000c00007b728 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000286 R12: 00000000004725e0 R13: 000000c001921808 R14: 000000c001fe1a40 R15: 00003fffffffffff </TASK> task:syz-execprog state:S stack:26816 pid:2653 tgid:2650 ppid:2648 flags:0x00000000 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 futex_wait_queue+0xfc/0x1f0 kernel/futex/waitwake.c:370 __futex_wait+0x291/0x3c0 kernel/futex/waitwake.c:669 futex_wait+0xe9/0x380 kernel/futex/waitwake.c:697 do_futex+0x22b/0x350 kernel/futex/syscalls.c:102 __do_sys_futex kernel/futex/syscalls.c:179 [inline] __se_sys_futex kernel/futex/syscalls.c:160 [inline] __x64_sys_futex+0x1e1/0x4c0 kernel/futex/syscalls.c:160 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x476343 RSP: 002b:000000c000093cf8 EFLAGS: 00000286 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000476343 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000c00007f148 RBP: 000000c000093d40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000286 R12: 000000c000066008 R13: 0000000000000001 R14: 000000c000006c40 R15: 0000000000000001 </TASK> task:syz-execprog state:S stack:26048 pid:2654 tgid:2650 ppid:2648 flags:0x00000000 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 futex_wait_queue+0xfc/0x1f0 kernel/futex/waitwake.c:370 __futex_wait+0x291/0x3c0 kernel/futex/waitwake.c:669 futex_wait+0xe9/0x380 kernel/futex/waitwake.c:697 do_futex+0x22b/0x350 kernel/futex/syscalls.c:102 __do_sys_futex kernel/futex/syscalls.c:179 [inline] __se_sys_futex kernel/futex/syscalls.c:160 [inline] __x64_sys_futex+0x1e1/0x4c0 kernel/futex/syscalls.c:160 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x476343 RSP: 002b:000000c0015dfe48 EFLAGS: 00000286 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000476343 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000c00057d948 RBP: 000000c0015dfe90 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000448320 R13: 000000c00007af94 R14: 000000c00189ea80 R15: 0000000000000007 </TASK> task:syz-execprog state:S stack:30176 pid:2656 tgid:2650 ppid:2648 flags:0x00000000 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 futex_wait_queue+0xfc/0x1f0 kernel/futex/waitwake.c:370 __futex_wait+0x291/0x3c0 kernel/futex/waitwake.c:669 futex_wait+0xe9/0x380 kernel/futex/waitwake.c:697 do_futex+0x22b/0x350 kernel/futex/syscalls.c:102 __do_sys_futex kernel/futex/syscalls.c:179 [inline] __se_sys_futex kernel/futex/syscalls.c:160 [inline] __x64_sys_futex+0x1e1/0x4c0 kernel/futex/syscalls.c:160 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x476343 RSP: 002b:000000c0015e3ef0 EFLAGS: 00000286 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000476343 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000040abe18 RBP: 000000c0015e3f38 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000286 R12: 00000000004725e0 R13: 000000c00007f808 R14: 000000c001fe1880 R15: 0001ffffffffffff </TASK> task:syz-execprog state:S stack:26848 pid:2657 tgid:2650 ppid:2648 flags:0x00000000 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 futex_wait_queue+0xfc/0x1f0 kernel/futex/waitwake.c:370 __futex_wait+0x291/0x3c0 kernel/futex/waitwake.c:669 futex_wait+0xe9/0x380 kernel/futex/waitwake.c:697 do_futex+0x22b/0x350 kernel/futex/syscalls.c:102 __do_sys_futex kernel/futex/syscalls.c:179 [inline] __se_sys_futex kernel/futex/syscalls.c:160 [inline] __x64_sys_futex+0x1e1/0x4c0 kernel/futex/syscalls.c:160 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x476343 RSP: 002b:000000c0021e7cf8 EFLAGS: 00000286 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000476343 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000c001921948 RBP: 000000c0021e7d40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000024 R13: 0000000000000001 R14: 000000c001fe1dc0 R15: 0000000000000001 </TASK> task:syz-execprog state:S stack:27440 pid:2658 tgid:2650 ppid:2648 flags:0x00000000 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 futex_wait_queue+0xfc/0x1f0 kernel/futex/waitwake.c:370 __futex_wait+0x291/0x3c0 kernel/futex/waitwake.c:669 futex_wait+0xe9/0x380 kernel/futex/waitwake.c:697 do_futex+0x22b/0x350 kernel/futex/syscalls.c:102 __do_sys_futex kernel/futex/syscalls.c:179 [inline] __se_sys_futex kernel/futex/syscalls.c:160 [inline] __x64_sys_futex+0x1e1/0x4c0 kernel/futex/syscalls.c:160 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x476343 RSP: 002b:000000c0021e3cf8 EFLAGS: 00000286 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000476343 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000c0028e6148 RBP: 000000c0021e3d40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000286 R12: 000000000000002f R13: 0000000000000001 R14: 000000c0028bd500 R15: 0000000000000001 </TASK> task:syz-execprog state:S stack:27520 pid:14574 tgid:2650 ppid:2648 flags:0x00000000 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 schedule_hrtimeout_range_clock+0x272/0x3b0 kernel/time/hrtimer.c:2281 ep_poll fs/eventpoll.c:2062 [inline] do_epoll_wait+0x139b/0x1a90 fs/eventpoll.c:2459 do_compat_epoll_pwait.part.0+0x26/0x1d0 fs/eventpoll.c:2493 do_epoll_pwait fs/eventpoll.c:2500 [inline] __do_sys_epoll_pwait fs/eventpoll.c:2506 [inline] __se_sys_epoll_pwait fs/eventpoll.c:2500 [inline] __x64_sys_epoll_pwait+0x20c/0x330 fs/eventpoll.c:2500 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x40708e RSP: 002b:000000c0014ad6d0 EFLAGS: 00000246 ORIG_RAX: 0000000000000119 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000040708e RDX: 0000000000000080 RSI: 000000c0014ad774 RDI: 0000000000000004 RBP: 000000c0014ad718 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000000003e7 R11: 0000000000000246 R12: 000000c0014ad7a8 R13: 0000000000000001 R14: 000000c001dc6700 R15: 0000000000000001 </TASK> task:syz-executor state:S stack:23472 pid:2655 tgid:2655 ppid:2654 flags:0x00000002 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 schedule_hrtimeout_range_clock+0x272/0x3b0 kernel/time/hrtimer.c:2281 poll_schedule_timeout.constprop.0+0xba/0x190 fs/select.c:241 do_select+0x12ec/0x17b0 fs/select.c:604 core_sys_select+0x459/0xb80 fs/select.c:678 do_pselect.constprop.0+0x1a0/0x1f0 fs/select.c:760 __do_sys_pselect6 fs/select.c:803 [inline] __se_sys_pselect6 fs/select.c:794 [inline] __x64_sys_pselect6+0x183/0x240 fs/select.c:794 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9c9998ddbc RSP: 002b:00007ffeade2b3a0 EFLAGS: 00000202 ORIG_RAX: 000000000000010e RAX: ffffffffffffffda RBX: 00007ffeade2b4d0 RCX: 00007f9c9998ddbc RDX: 0000000000000000 RSI: 00007ffeade2b4d0 RDI: 0000000000000025 RBP: 00007ffeade2b900 R08: 00007ffeade2b3d0 R09: 00007ffeade2b3e0 R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffeade2b750 R13: 0000000000000000 R14: 585858582e7a7973 R15: 00007ffeade2b560 </TASK> task:kworker/u8:8 state:I stack:24304 pid:3821 tgid:3821 ppid:2 flags:0x00004000 Workqueue: 0x0 (events_unbound) Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 worker_thread+0x2de/0xf00 kernel/workqueue.c:3406 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> task:kworker/0:3 state:I stack:28976 pid:5497 tgid:5497 ppid:2 flags:0x00004000 Workqueue: 0x0 (events) Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 worker_thread+0x2de/0xf00 kernel/workqueue.c:3406 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> task:kworker/1:3 state:I stack:21728 pid:5499 tgid:5499 ppid:2 flags:0x00004000 Workqueue: 0x0 (events) Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 worker_thread+0x2de/0xf00 kernel/workqueue.c:3406 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> task:kworker/1:4 state:I stack:22544 pid:5505 tgid:5505 ppid:2 flags:0x00004000 Workqueue: 0x0 (events) Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 worker_thread+0x2de/0xf00 kernel/workqueue.c:3406 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> task:kworker/1:5 state:I stack:27232 pid:5508 tgid:5508 ppid:2 flags:0x00004000 Workqueue: 0x0 (events) Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 worker_thread+0x2de/0xf00 kernel/workqueue.c:3406 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> task:kworker/0:4 state:D stack:23184 pid:10098 tgid:10098 ppid:2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 schedule_timeout+0x258/0x2a0 kernel/time/timer.c:2591 ___down_common+0x2d7/0x460 kernel/locking/semaphore.c:225 __down_common kernel/locking/semaphore.c:246 [inline] __down+0x20/0x30 kernel/locking/semaphore.c:254 down+0x74/0xa0 kernel/locking/semaphore.c:63 hid_device_remove+0x29/0x260 drivers/hid/hid-core.c:2749 device_remove+0xc8/0x170 drivers/base/dd.c:567 __device_release_driver drivers/base/dd.c:1273 [inline] device_release_driver_internal+0x44a/0x610 drivers/base/dd.c:1296 bus_remove_device+0x22f/0x420 drivers/base/bus.c:576 device_del+0x396/0x9f0 drivers/base/core.c:3864 hid_remove_device drivers/hid/hid-core.c:2939 [inline] hid_destroy_device+0xe5/0x150 drivers/hid/hid-core.c:2959 usbhid_disconnect+0xa0/0xe0 drivers/hid/usbhid/hid-core.c:1458 usb_unbind_interface+0x1e8/0x970 drivers/usb/core/driver.c:461 device_remove drivers/base/dd.c:569 [inline] device_remove+0x122/0x170 drivers/base/dd.c:561 __device_release_driver drivers/base/dd.c:1273 [inline] device_release_driver_internal+0x44a/0x610 drivers/base/dd.c:1296 bus_remove_device+0x22f/0x420 drivers/base/bus.c:576 device_del+0x396/0x9f0 drivers/base/core.c:3864 usb_disable_device+0x36c/0x7f0 drivers/usb/core/message.c:1418 usb_disconnect+0x2e1/0x920 drivers/usb/core/hub.c:2304 hub_port_connect drivers/usb/core/hub.c:5361 [inline] hub_port_connect_change drivers/usb/core/hub.c:5661 [inline] port_event drivers/usb/core/hub.c:5821 [inline] hub_event+0x1bed/0x4f40 drivers/usb/core/hub.c:5903 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> task:syz-executor state:D stack:23840 pid:18831 tgid:18831 ppid:1 flags:0x00004006 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6839 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752 exp_funnel_lock+0x1a4/0x3b0 kernel/rcu/tree_exp.h:329 synchronize_rcu_expedited+0x290/0x450 kernel/rcu/tree_exp.h:976 namespace_unlock+0x1b5/0x490 fs/namespace.c:1703 drop_collected_mounts fs/namespace.c:2225 [inline] put_mnt_ns fs/namespace.c:5553 [inline] put_mnt_ns+0xf4/0x130 fs/namespace.c:5549 free_nsproxy+0x47/0x470 kernel/nsproxy.c:193 put_nsproxy include/linux/nsproxy.h:118 [inline] switch_task_namespaces+0xeb/0x100 kernel/nsproxy.c:251 do_exit+0xad8/0x2ce0 kernel/exit.c:938 do_group_exit+0xd3/0x2a0 kernel/exit.c:1088 get_signal+0x25fb/0x2770 kernel/signal.c:2917 arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x147/0x260 kernel/entry/common.c:218 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f054e954213 RSP: 002b:00007ffd383c1948 EFLAGS: 00000202 ORIG_RAX: 000000000000003d RAX: fffffffffffffe00 RBX: 0000000000000004 RCX: 00007f054e954213 RDX: 0000000040000000 RSI: 00007ffd383c197c RDI: 00000000ffffffff RBP: 00007ffd383c197c R08: 000000000000f84a R09: 00007f054f64f080 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 R13: 0000000000000000 R14: 00000000000676e9 R15: 00007ffd383c19d0 </TASK> task:syz-executor state:S stack:26144 pid:19691 tgid:19691 ppid:2655 flags:0x00000000 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 do_wait+0x1dd/0x570 kernel/exit.c:1697 kernel_wait4+0x16c/0x280 kernel/exit.c:1851 __do_sys_wait4+0x15f/0x170 kernel/exit.c:1879 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8158d54213 RSP: 002b:00007ffd5db7dc78 EFLAGS: 00000202 ORIG_RAX: 000000000000003d RAX: ffffffffffffffda RBX: 0000000000004cec RCX: 00007f8158d54213 RDX: 0000000040000000 RSI: 00007ffd5db7dc8c RDI: 00000000ffffffff RBP: 00007ffd5db7dc8c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd5db7dd10 R13: 00007ffd5db7dd18 R14: 0000000000000009 R15: 0000000000000000 </TASK> task:syz-executor state:D stack:23520 pid:19692 tgid:19692 ppid:19691 flags:0x00000000 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 io_schedule+0xbf/0x130 kernel/sched/core.c:7574 bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:209 __wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] do_get_write_access+0x933/0x1270 fs/jbd2/transaction.c:1096 jbd2_journal_get_write_access+0x1d6/0x280 fs/jbd2/transaction.c:1245 __ext4_journal_get_write_access+0x6a/0x390 fs/ext4/ext4_jbd2.c:239 __ext4_new_inode+0xda1/0x4ec0 fs/ext4/ialloc.c:1088 ext4_mkdir+0x283/0xb70 fs/ext4/namei.c:3017 vfs_mkdir+0x57d/0x860 fs/namei.c:4257 do_mkdirat+0x1b1/0x390 fs/namei.c:4280 __do_sys_mkdirat fs/namei.c:4295 [inline] __se_sys_mkdirat fs/namei.c:4293 [inline] __x64_sys_mkdirat+0x83/0xb0 fs/namei.c:4293 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8158d5c897 RSP: 002b:00007ffd5db7dc78 EFLAGS: 00000202 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007f8158dd0685 RCX: 00007f8158d5c897 RDX: 00000000000001ff RSI: 00007f8158dd0685 RDI: 00000000ffffff9c RBP: 00007ffd5db7dd10 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd5db7dd10 R13: 00007ffd5db7dd18 R14: 0000000000000009 R15: 0000000000000000 </TASK> task:syz-executor state:S stack:26144 pid:19695 tgid:19695 ppid:2655 flags:0x00000000 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 do_wait+0x1dd/0x570 kernel/exit.c:1697 kernel_wait4+0x16c/0x280 kernel/exit.c:1851 __do_sys_wait4+0x15f/0x170 kernel/exit.c:1879 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4a822c4213 RSP: 002b:00007fff9e1542b8 EFLAGS: 00000202 ORIG_RAX: 000000000000003d RAX: ffffffffffffffda RBX: 0000000000004cf5 RCX: 00007f4a822c4213 RDX: 0000000040000000 RSI: 00007fff9e1542cc RDI: 00000000ffffffff RBP: 00007fff9e1542cc R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff9e154350 R13: 00007fff9e154358 R14: 0000000000000009 R15: 0000000000000000 </TASK> task:syz-executor state:D stack:26784 pid:19701 tgid:19701 ppid:19695 flags:0x00000000 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 schedule_timeout+0x258/0x2a0 kernel/time/timer.c:2591 do_wait_for_common kernel/sched/completion.c:95 [inline] __wait_for_common+0x3e1/0x600 kernel/sched/completion.c:116 wait_for_common kernel/sched/completion.c:127 [inline] wait_for_completion_state+0x1c/0x40 kernel/sched/completion.c:264 call_usermodehelper_exec+0x3c4/0x4d0 kernel/umh.c:442 call_modprobe kernel/module/kmod.c:103 [inline] __request_module+0x3f6/0x6c0 kernel/module/kmod.c:173 __rtnl_newlink+0x64c/0x1920 net/core/rtnetlink.c:3748 rtnl_newlink+0x67/0xa0 net/core/rtnetlink.c:3772 rtnetlink_rcv_msg+0x3c7/0xea0 net/core/rtnetlink.c:6675 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2551 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:729 [inline] __sock_sendmsg net/socket.c:744 [inline] __sys_sendto+0x479/0x4d0 net/socket.c:2214 __do_sys_sendto net/socket.c:2226 [inline] __se_sys_sendto net/socket.c:2222 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2222 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4a822cfe33 RSP: 002b:00007fff9e1539c8 EFLAGS: 00000202 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f4a82fb4620 RCX: 00007f4a822cfe33 RDX: 0000000000000068 RSI: 00007f4a82fb4670 RDI: 0000000000000003 RBP: 0000000000000001 R08: 00007fff9e1539e4 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 R13: 0000000000000000 R14: 00007f4a82fb4670 R15: 0000000000000000 </TASK> task:syz-executor state:S stack:26144 pid:19703 tgid:19703 ppid:2655 flags:0x00000000 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 do_wait+0x1dd/0x570 kernel/exit.c:1697 kernel_wait4+0x16c/0x280 kernel/exit.c:1851 __do_sys_wait4+0x15f/0x170 kernel/exit.c:1879 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fde24274213 RSP: 002b:00007ffe2cb21668 EFLAGS: 00000202 ORIG_RAX: 000000000000003d RAX: ffffffffffffffda RBX: 0000000000004cfa RCX: 00007fde24274213 RDX: 0000000040000000 RSI: 00007ffe2cb2167c RDI: 00000000ffffffff RBP: 00007ffe2cb2167c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe2cb21700 R13: 00007ffe2cb21708 R14: 0000000000000009 R15: 0000000000000000 </TASK> task:syz-executor state:S stack:26144 pid:19705 tgid:19705 ppid:2655 flags:0x00000000 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 do_wait+0x1dd/0x570 kernel/exit.c:1697 kernel_wait4+0x16c/0x280 kernel/exit.c:1851 __do_sys_wait4+0x15f/0x170 kernel/exit.c:1879 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0d48944213 RSP: 002b:00007ffe7efd71e8 EFLAGS: 00000202 ORIG_RAX: 000000000000003d RAX: ffffffffffffffda RBX: 0000000000004cfd RCX: 00007f0d48944213 RDX: 0000000040000000 RSI: 00007ffe7efd71fc RDI: 00000000ffffffff RBP: 00007ffe7efd71fc R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe7efd7280 R13: 00007ffe7efd7288 R14: 0000000000000009 R15: 0000000000000000 </TASK> task:syz-executor state:D stack:22832 pid:19706 tgid:19706 ppid:19703 flags:0x00000000 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 io_schedule+0xbf/0x130 kernel/sched/core.c:7574 bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:209 __wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] do_get_write_access+0x933/0x1270 fs/jbd2/transaction.c:1096 jbd2_journal_get_write_access+0x1d6/0x280 fs/jbd2/transaction.c:1245 __ext4_journal_get_write_access+0x6a/0x390 fs/ext4/ext4_jbd2.c:239 __ext4_new_inode+0xda1/0x4ec0 fs/ext4/ialloc.c:1088 ext4_mkdir+0x283/0xb70 fs/ext4/namei.c:3017 vfs_mkdir+0x57d/0x860 fs/namei.c:4257 do_mkdirat+0x1b1/0x390 fs/namei.c:4280 __do_sys_mkdirat fs/namei.c:4295 [inline] __se_sys_mkdirat fs/namei.c:4293 [inline] __x64_sys_mkdirat+0x83/0xb0 fs/namei.c:4293 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fde2427c897 RSP: 002b:00007ffe2cb21668 EFLAGS: 00000206 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007fde242f0685 RCX: 00007fde2427c897 RDX: 00000000000001ff RSI: 00007fde242f0685 RDI: 00000000ffffff9c RBP: 00007ffe2cb21700 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe2cb21700 R13: 00007ffe2cb21708 R14: 0000000000000009 R15: 0000000000000000 </TASK> task:syz-executor state:D stack:24784 pid:19709 tgid:19709 ppid:19705 flags:0x00000000 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 io_schedule+0xbf/0x130 kernel/sched/core.c:7574 bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:209 __wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] do_get_write_access+0x933/0x1270 fs/jbd2/transaction.c:1096 jbd2_journal_get_write_access+0x1d6/0x280 fs/jbd2/transaction.c:1245 __ext4_journal_get_write_access+0x6a/0x390 fs/ext4/ext4_jbd2.c:239 __ext4_new_inode+0xda1/0x4ec0 fs/ext4/ialloc.c:1088 ext4_mkdir+0x283/0xb70 fs/ext4/namei.c:3017 vfs_mkdir+0x57d/0x860 fs/namei.c:4257 do_mkdirat+0x1b1/0x390 fs/namei.c:4280 __do_sys_mkdirat fs/namei.c:4295 [inline] __se_sys_mkdirat fs/namei.c:4293 [inline] __x64_sys_mkdirat+0x83/0xb0 fs/namei.c:4293 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0d4894c897 RSP: 002b:00007ffe7efd71e8 EFLAGS: 00000202 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007f0d489c0685 RCX: 00007f0d4894c897 RDX: 00000000000001ff RSI: 00007f0d489c0685 RDI: 00000000ffffff9c RBP: 00007ffe7efd7280 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe7efd7280 R13: 00007ffe7efd7288 R14: 0000000000000009 R15: 0000000000000000 </TASK> task:syz.3.53 state:D stack:27856 pid:19844 tgid:19844 ppid:18831 flags:0x00004006 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 synchronize_rcu_expedited+0x392/0x450 kernel/rcu/tree_exp.h:991 module_remove_driver+0x2e/0x260 drivers/base/module.c:106 bus_remove_driver+0x143/0x2c0 drivers/base/bus.c:745 driver_unregister+0x76/0xb0 drivers/base/driver.c:274 usb_gadget_unregister_driver+0x49/0x70 drivers/usb/gadget/udc/core.c:1732 raw_release+0x1ae/0x2b0 drivers/usb/gadget/legacy/raw_gadget.c:462 __fput+0x3f6/0xb60 fs/file_table.c:431 task_work_run+0x14e/0x250 kernel/task_work.c:239 exit_task_work include/linux/task_work.h:43 [inline] do_exit+0xadd/0x2ce0 kernel/exit.c:939 do_group_exit+0xd3/0x2a0 kernel/exit.c:1088 get_signal+0x25fb/0x2770 kernel/signal.c:2917 arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x147/0x260 kernel/entry/common.c:218 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f054e95dff9 RSP: 002b:00007ffd383c1718 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffdfc RBX: 00007ffd383c1840 RCX: 00007f054e95dff9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f054eb15f8c RBP: 00007f054eb15f8c R08: 00007f054f64f080 R09: 00007ffd383c1a0f R10: 00007ffd383c1820 R11: 0000000000000246 R12: 0000000000067cb1 R13: 00007ffd383c1820 R14: 000000000000015e R15: 0000000000067b53 </TASK> task:modprobe state:R running task stack:25424 pid:19905 tgid:19905 ppid:50 flags:0x0000400a Call Trace: <IRQ> sched_show_task kernel/sched/core.c:7604 [inline] sched_show_task+0x3f0/0x5f0 kernel/sched/core.c:7579 show_state_filter+0xee/0x320 kernel/sched/core.c:7649 k_spec drivers/tty/vt/keyboard.c:667 [inline] k_spec+0xed/0x150 drivers/tty/vt/keyboard.c:656 kbd_keycode drivers/tty/vt/keyboard.c:1522 [inline] kbd_event+0xcbd/0x17a0 drivers/tty/vt/keyboard.c:1541 input_handler_events_default+0x116/0x1b0 drivers/input/input.c:2549 input_pass_values+0x777/0x8e0 drivers/input/input.c:126 input_event_dispose drivers/input/input.c:352 [inline] input_handle_event+0xb30/0x14d0 drivers/input/input.c:369 input_event drivers/input/input.c:398 [inline] input_event+0x83/0xa0 drivers/input/input.c:390 hidinput_hid_event+0xa12/0x2410 drivers/hid/hid-input.c:1719 hid_process_event+0x4b7/0x5e0 drivers/hid/hid-core.c:1540 hid_input_array_field+0x535/0x710 drivers/hid/hid-core.c:1652 hid_process_report drivers/hid/hid-core.c:1694 [inline] hid_report_raw_event+0xa02/0x11c0 drivers/hid/hid-core.c:2040 __hid_input_report.constprop.0+0x341/0x440 drivers/hid/hid-core.c:2110 hid_irq_in+0x35e/0x870 drivers/hid/usbhid/hid-core.c:285 __usb_hcd_giveback_urb+0x389/0x6e0 drivers/usb/core/hcd.c:1650 usb_hcd_giveback_urb+0x396/0x450 drivers/usb/core/hcd.c:1734 dummy_timer+0x17f0/0x3930 drivers/usb/gadget/udc/dummy_hcd.c:1993 __run_hrtimer kernel/time/hrtimer.c:1691 [inline] __hrtimer_run_queues+0x20a/0xae0 kernel/time/hrtimer.c:1755 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1772 handle_softirqs+0x206/0x8d0 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu kernel/softirq.c:637 [inline] irq_exit_rcu+0xac/0x110 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1049 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:ma_dead_node lib/maple_tree.c:561 [inline] RIP: 0010:mas_prev_node+0x197/0x10b0 lib/maple_tree.c:4476 Code: 0f 84 58 ff ff ff bb 01 00 00 00 e8 23 0b 74 fa 89 d8 48 83 c4 38 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc e8 09 0b 74 fa <48> b8 00 00 00 00 00 fc ff df 48 89 ea 48 c1 ea 03 80 3c 02 00 0f RSP: 0018:ffffc900037e7628 EFLAGS: 00000293 RAX: 0000000000000000 RBX: ffffc900037e7760 RCX: ffffffff86e1e691 RDX: ffff88811adc57c0 RSI: ffffffff86e1e7b7 RDI: 0000000000000007 RBP: ffff88811dd9e200 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffffc900037e7778 R15: ffff88811dd9e400 mas_dfs_postorder lib/maple_tree.c:7089 [inline] mt_validate+0x2203/0x41b0 lib/maple_tree.c:7607 validate_mm+0xae/0x4d0 mm/vma.c:534 vms_complete_munmap_vmas+0x62c/0x9a0 mm/vma.c:1159 mmap_region+0x4ce/0x2910 mm/mmap.c:1543 do_mmap+0xc00/0xfc0 mm/mmap.c:496 vm_mmap_pgoff+0x1ba/0x350 mm/util.c:588 ksys_mmap_pgoff+0x32c/0x5c0 mm/mmap.c:542 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:86 [inline] __se_sys_mmap arch/x86/kernel/sys_x86_64.c:79 [inline] __x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:79 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f551d6a0b74 Code: 63 08 44 89 e8 5b 41 5c 41 5d c3 41 89 ca 41 f7 c1 ff 0f 00 00 74 0c c7 05 f5 46 01 00 16 00 00 00 eb 17 b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 0c f7 d8 89 05 dc 46 01 00 48 83 c8 ff c3 0f RSP: 002b:00007fffe534c9e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007fffe534ca60 RCX: 00007f551d6a0b74 RDX: 0000000000000001 RSI: 0000000000053000 RDI: 00007f551d554000 RBP: 00007fffe534d180 R08: 0000000000000000 R09: 000000000014b000 R10: 0000000000000812 R11: 0000000000000246 R12: 00007f551d67d5c0 R13: 00007fffe534d208 R14: 000000000014ab8e R15: 0000000000000000 </TASK> task:syz-executor state:D stack:26144 pid:20285 tgid:20285 ppid:2655 flags:0x00000000 Call Trace: <TASK> context_switch kernel/sched/core.c:5328 [inline] __schedule+0x105f/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 io_schedule+0xbf/0x130 kernel/sched/core.c:7574 bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:209 __wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] do_get_write_access+0x933/0x1270 fs/jbd2/transaction.c:1096 jbd2_journal_get_write_access+0x1d6/0x280 fs/jbd2/transaction.c:1245 __ext4_journal_get_write_access+0x6a/0x390 fs/ext4/ext4_jbd2.c:239 ext4_reserve_inode_write+0x13b/0x270 fs/ext4/inode.c:5773 __ext4_mark_inode_dirty+0x1a6/0x890 fs/ext4/inode.c:5947 ext4_dirty_inode+0xd9/0x130 fs/ext4/inode.c:5984 __mark_inode_dirty+0x1f6/0xe60 fs/fs-writeback.c:2493 mark_inode_dirty include/linux/fs.h:2474 [inline] ext4_setattr+0x33e/0x26e0 fs/ext4/inode.c:5508 notify_change+0x6a6/0x1230 fs/attr.c:503 chmod_common+0x1f6/0x450 fs/open.c:653 do_fchmodat fs/open.c:701 [inline] __do_sys_chmod fs/open.c:725 [inline] __se_sys_chmod fs/open.c:723 [inline] __x64_sys_chmod+0x108/0x1c0 fs/open.c:723 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f97877ec837 RSP: 002b:00007ffc4f4c0eb8 EFLAGS: 00000202 ORIG_RAX: 000000000000005a RAX: ffffffffffffffda RBX: 00007ffc4f4c0f20 RCX: 00007f97877ec837 RDX: 0000000000000000 RSI: 00000000000001ff RDI: 00007ffc4f4c0f20 RBP: 0000000000000002 R08: 0000000000000004 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000202 R12: 00007ffc4f4c0f20 R13: 00007ffc4f4c0f28 R14: 0000000000000009 R15: 0000000000000000 </TASK> Showing all locks held in the system: 2 locks held by kworker/u8:4/50: #0: ffff888100089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204 #1: ffffc90000527d80 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205 2 locks held by getty/2607: #0: ffff88810ff760a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243 #1: ffffc900000432f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfba/0x1480 drivers/tty/n_tty.c:2211 6 locks held by kworker/0:4/10098: #0: ffff888105ef6d48 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204 #1: ffffc9000209fd80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205 #2: ffff888109b12190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline] #2: ffff888109b12190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x4f40 drivers/usb/core/hub.c:5849 #3: ffff88811366e190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline] #3: ffff88811366e190 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0x10a/0x920 drivers/usb/core/hub.c:2295 #4: ffff8881052c8160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline] #4: ffff8881052c8160 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1095 [inline] #4: ffff8881052c8160 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xa4/0x610 drivers/base/dd.c:1293 #5: ffff88812f6f9a20 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline] #5: ffff88812f6f9a20 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1095 [inline] #5: ffff88812f6f9a20 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xa4/0x610 drivers/base/dd.c:1293 1 lock held by syz-executor/18831: #0: ffffffff88ec6a38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock+0x1a4/0x3b0 kernel/rcu/tree_exp.h:329 3 locks held by syz-executor/19692: #0: ffff8881144343f8 (sb_writers#5){.+.+}-{0:0}, at: filename_create+0x10d/0x530 fs/namei.c:4019 #1: ffff888118dd03f8 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:850 [inline] #1: ffff888118dd03f8 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: filename_create+0x1c2/0x530 fs/namei.c:4026 #2: ffff888114480958 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xf6c/0x1430 fs/jbd2/transaction.c:448 3 locks held by syz-executor/19706: #0: ffff8881144343f8 (sb_writers#5){.+.+}-{0:0}, at: filename_create+0x10d/0x530 fs/namei.c:4019 #1: ffff888118dd1798 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:850 [inline] #1: ffff888118dd1798 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: filename_create+0x1c2/0x530 fs/namei.c:4026 #2: ffff888114480958 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xf6c/0x1430 fs/jbd2/transaction.c:448 3 locks held by syz-executor/19709: #0: ffff8881144343f8 (sb_writers#5){.+.+}-{0:0}, at: filename_create+0x10d/0x530 fs/namei.c:4019 #1: ffff888118dd2168 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:850 [inline] #1: ffff888118dd2168 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: filename_create+0x1c2/0x530 fs/namei.c:4026 #2: ffff888114480958 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xf6c/0x1430 fs/jbd2/transaction.c:448 1 lock held by syz.3.53/19844: #0: ffffffff88ec6a38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock+0x282/0x3b0 kernel/rcu/tree_exp.h:297 5 locks held by modprobe/19905: #0: ffff88812f699d58 (&mm->mmap_lock){++++}-{3:3}, at: mmap_write_lock_killable include/linux/mmap_lock.h:122 [inline] #0: ffff88812f699d58 (&mm->mmap_lock){++++}-{3:3}, at: vm_mmap_pgoff+0x160/0x350 mm/util.c:586 #1: ffff8881056b9230 (&dev->event_lock){..-.}-{2:2}, at: input_event drivers/input/input.c:397 [inline] #1: ffff8881056b9230 (&dev->event_lock){..-.}-{2:2}, at: input_event+0x70/0xa0 drivers/input/input.c:390 #2: ffffffff88ebb140 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #2: ffffffff88ebb140 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #2: ffffffff88ebb140 (rcu_read_lock){....}-{1:2}, at: input_pass_values+0x8b/0x8e0 drivers/input/input.c:118 #3: ffffffff89387a58 (kbd_event_lock){..-.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline] #3: ffffffff89387a58 (kbd_event_lock){..-.}-{2:2}, at: kbd_event+0x8a/0x17a0 drivers/tty/vt/keyboard.c:1535 #4: ffffffff88ebb140 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #4: ffffffff88ebb140 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #4: ffffffff88ebb140 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x7f/0x390 kernel/locking/lockdep.c:6720 3 locks held by syz-executor/20285: #0: ffff8881144343f8 (sb_writers#5){.+.+}-{0:0}, at: chmod_common+0x106/0x450 fs/open.c:643 #1: ffff888118dd2b38 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline] #1: ffff888118dd2b38 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: chmod_common+0x171/0x450 fs/open.c:647 #2: ffff888114480958 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xf6c/0x1430 fs/jbd2/transaction.c:448 ============================================= keytouch 0003:0926:3333.0013: can't resubmit intr, dummy_hcd.3-1/input0, status -19 keytouch 0003:0926:3333.0013: usb_submit_urb(ctrl) failed: -19 --- 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 report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. 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
