syzbot

rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: {
 1-...D
 } 2636 jiffies s: 14353 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
RDX: 00007ffe176350d0 RSI: 0000000000000004 RDI: 0000559487f04e70
RBP: 00007ffe17635400 R08: 0000000000000008 R09: 00007fdda87c7080
R10: 00007ffe17635400 R11: 0000000000000246 R12: 00007ffe176350f8
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 2548 Comm: udevd 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:ffffc900001b7ed0 EFLAGS: 00000006
RAX: 0000000000000000 RBX: 00000000000003f9 RCX: 0000000000000000
RDX: 00000000000003f9 RSI: ffffffff82a08975 RDI: ffffffff93637660
RBP: ffffffff93637620 R08: 0000000000000001 R09: 000000000000001f
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff93637670 R15: 0000000000000070
FS:  00007f00287b2c80(0000) GS:ffff8881f5900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7077bb1000 CR3: 0000000116080000 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_clear_IER+0x9b/0xc0 drivers/tty/serial/8250/8250_port.c:699
 serial8250_console_write+0x243/0x17c0 drivers/tty/serial/8250/8250_port.c:3358
 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
 __show_regs+0x25f/0x750 arch/x86/kernel/process_64.c:89
 show_trace_log_lvl+0x26c/0x3d0 arch/x86/kernel/dumpstack.c:301
 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:memory_is_poisoned_n mm/kasan/generic.c:132 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0xcf/0x1a0 mm/kasan/generic.c:189
Code: be 00 00 00 48 83 38 00 74 ed 48 8d 50 08 eb 0d 48 83 c0 01 48 39 c2 0f 84 8d 00 00 00 80 38 00 74 ee 48 89 c2 b8 01 00 00 00 <48> 85 d2 74 1e 41 83 e2 07 49 39 d1 75 0a 45 3a 11 b8 01 00 00 00
RSP: 0018:ffffc9000192f850 EFLAGS: 00000202
RAX: 0000000000000001 RBX: fffff52000325f24 RCX: ffffffff82285217
RDX: fffff52000325f23 RSI: 0000000000000014 RDI: ffffc9000192f908
RBP: fffff52000325f21 R08: 0000000000000001 R09: fffff52000325f23
R10: ffffc9000192f91b R11: 0000000000000000 R12: ffffc9000192f908
R13: 0000000000000044 R14: ffffc9000192f908 R15: 00000000001fffff
 __asan_memcpy+0x3c/0x60 mm/kasan/shadow.c:106
 avc_has_perm_noaudit+0xe7/0x3a0 security/selinux/avc.c:1157
 avc_has_perm+0xc1/0x1c0 security/selinux/avc.c:1188
 sock_has_perm+0x256/0x2f0 security/selinux/hooks.c:4619
 security_socket_recvmsg+0x52/0xb0 security/security.c:4660
 sock_recvmsg+0x4a/0x250 net/socket.c:1071
 ____sys_recvmsg+0x219/0x6b0 net/socket.c:2826
 ___sys_recvmsg+0x115/0x1a0 net/socket.c:2868
 __sys_recvmsg+0x114/0x1e0 net/socket.c:2898
 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: 0033:0x7f00288eb91e
Code: ff 89 ef 48 89 04 24 e8 4f 57 f9 ff 48 8b 04 24 48 83 c4 30 5d c3 c3 64 8b 04 25 18 00 00 00 85 c0 75 21 b8 2f 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 70 48 8b 15 db c4 0c 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffdc72aef98 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f00288eb91e
RDX: 0000000000000000 RSI: 00007ffdc72aefc8 RDI: 0000000000000004
RBP: 000055c491551140 R08: 0000000021c5c1dd R09: 00007f0028cf8080
R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffdc72af088 R14: 0000000000000000 R15: 000055c479c964df
 </TASK>
R13: 000055947321d610 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:dhcpcd          state:S
 stack:24064 pid:2586  tgid:2586  ppid:2585   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: 0033:0x7fdda86dead5
RSP: 002b:00007ffe176350b0 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 0000559487efaee0 RCX: 00007fdda86dead5
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000559487efaec0
RBP: 00007ffe17635400 R08: 0000000000000008 R09: 7121c35c04418e05
R10: 00007ffe17635400 R11: 0000000000000246 R12: 0000000000000000
R13: 000055947321d610 R14: 00000000ffffffff R15: 0000000000000000
 </TASK>
task:dhcpcd          state:S
 stack:27984 pid:2587  tgid:2587  ppid:2585   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: 0033:0x7fdda86dead5
RSP: 002b:00007ffe176350b0 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 0000559487efaee0 RCX: 00007fdda86dead5
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000559487f03fe0
RBP: 00007ffe17635400 R08: 0000000000000008 R09: 000055947321d3d0
R10: 00007ffe17635400 R11: 0000000000000246 R12: 0000000000000000
R13: 000055947321d610 R14: 0000000000000003 R15: 0000000000000000
 </TASK>
task:dhcpcd          state:S
 stack:26704 pid:2588  tgid:2588  ppid:2585   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: 0033:0x7fdda86dead5
RSP: 002b:00007ffe176350b0 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 0000559487efaee0 RCX: 00007fdda86dead5
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000559487f03fe0
RBP: 00007ffe17635400 R08: 0000000000000008 R09: 000055947321d3d0
R10: 00007ffe17635400 R11: 0000000000000246 R12: 0000000000000000
R13: 000055947321d610 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:sshd            state:S
 stack:27360 pid:2604  tgid:2604  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: 0033:0x7f9cc6c8cad5
RSP: 002b:00007ffe79565650 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 0000557820f52520 RCX: 00007f9cc6c8cad5
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000557820f52a00
RBP: 0000000000000064 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffe79565808 R11: 0000000000000246 R12: 0000557820f52a00
R13: 00007ffe79565808 R14: 0000000000000002 R15: 0000557820f529ec
 </TASK>
task:getty           state:S
 stack:25424 pid:2606  tgid:2606  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: 0033:0x7f268a012b6a
RSP: 002b:00007ffc3a78d7b8 EFLAGS: 00000246
 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00005639b1ca32c0 RCX: 00007f268a012b6a
RDX: 0000000000000001 RSI: 00007ffc3a78d7d0 RDI: 0000000000000000
RBP: 00005639b1ca3320 R08: 0000000000000000 R09: b4f061bf9ffc6c4e
R10: 0000000000000010 R11: 0000000000000246 R12: 00005639b1ca335c
R13: 00007ffc3a78d7d0 R14: 0000000000000000 R15: 00005639b1ca335c
 </TASK>
task:dhcpcd          state:S
 stack:25904 pid:2608  tgid:2608  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: 0033:0x7fdda86dead5
RSP: 002b:00007ffe176350b0 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 0000559487efaee0 RCX: 00007fdda86dead5
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000559487f05d50
RBP: 00007ffe17635400 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffe17635400 R11: 0000000000000246 R12: 0000000000000000
R13: 000055947321d610 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:sshd            state:S
 stack:25424 pid:2639  tgid:2639  ppid:2604   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: 0033:0x7fd37b25fad5
RSP: 002b:00007fff06a0eb30 EFLAGS: 00000246
 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00000000000668a0 RCX: 00007fd37b25fad5
RDX: 00007fff06a0eb50 RSI: 0000000000000004 RDI: 000055eff9c3ab00
RBP: 000055eff9c395c0 R08: 0000000000000008 R09: 0000000000000000
R10: 00007fff06a0ec38 R11: 0000000000000246 R12: 000055efcc287aa4
R13: 0000000000000001 R14: 000055efcc2883e8 R15: 00007fff06a0ebb8
 </TASK>
task:syz-executor    state:D
 stack:23504 pid:2641  tgid:2641  ppid:2639   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
 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
 generic_update_time+0xcf/0xf0 fs/inode.c:2043
 inode_update_time fs/inode.c:2056 [inline]
 __file_update_time fs/inode.c:2245 [inline]
 file_update_time+0x12e/0x160 fs/inode.c:2275
 ext4_page_mkwrite+0x368/0x1760 fs/ext4/inode.c:6102
 do_page_mkwrite+0x177/0x380 mm/memory.c:3162
 wp_page_shared mm/memory.c:3563 [inline]
 do_wp_page+0xaa0/0x3fa0 mm/memory.c:3713
 handle_pte_fault mm/memory.c:5771 [inline]
 __handle_mm_fault+0xd92/0x3390 mm/memory.c:5898
 handle_mm_fault+0x3fa/0xaa0 mm/memory.c:6066
 do_user_addr_fault+0x613/0x12c0 arch/x86/mm/fault.c:1338
 handle_page_fault arch/x86/mm/fault.c:1481 [inline]
 exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1539
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f88d16263d5
RSP: 002b:00007fffbb82e7e0 EFLAGS: 00010202

RAX: 00007f88cb1d0000 RBX: 00007fffbb82e8e0 RCX: 00007f88cadd0210
RDX: 00007f88cb1cfffc RSI: 0000000000000008 RDI: 00007fffbb82e8e0
RBP: 00000000000003e6 R08: 0000000000000000 R09: 0000000000000000
R10: 00007fffbb82e8c0 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:kworker/0:3     state:I
 stack:21520 pid:4930  tgid:4930  ppid:2      flags:0x00004000
Workqueue:  0x0 (mm_percpu_wq)

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:I stack:21184 pid:4933  tgid:4933  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:D
 stack:20352 pid:4936  tgid:4936  ppid:2      flags:0x00004000
Workqueue: events console_callback

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
 console_lock+0x5b/0xa0 kernel/printk/printk.c:2808
 console_callback+0x63/0x4c0 drivers/tty/vt/vt.c:3120
 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:kworker/1:4     state:R
  running task     stack:20736 pid:4952  tgid:4952  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
 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6869
 __cond_resched+0x1b/0x30 kernel/sched/core.c:7214
 _cond_resched include/linux/sched.h:2031 [inline]
 process_one_work+0xbc5/0x1ba0 kernel/workqueue.c:3262
 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:kworker/1:5     state:R
  running task    
 stack:20624 pid:5026  tgid:5026  ppid:2      flags:0x00004000
Workqueue:  0x0 (mm_percpu_wq)
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/0:6     state:I stack:22016 pid:5199  tgid:5199  ppid:2      flags:0x00004000
Workqueue:  0x0
 (mm_percpu_wq)
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/1:6     state:I
 stack:26992 pid:5407  tgid:5407  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:syz-executor    state:S
 stack:25424 pid:6247  tgid:6247  ppid:2641   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: 0033:0x7f70778c4213
RSP: 002b:00007ffcfdfd0ea8 EFLAGS: 00000202
 ORIG_RAX: 000000000000003d
RAX: ffffffffffffffda RBX: 0000000000001869 RCX: 00007f70778c4213
RDX: 0000000040000000 RSI: 00007ffcfdfd0ebc RDI: 00000000ffffffff
RBP: 00007ffcfdfd0ebc R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000c
R13: 0000000000000003 R14: 0000000000000009 R15: 0000000000000000
 </TASK>
task:syz-executor    state:S stack:25424 pid:6248  tgid:6248  ppid:2641   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: 0033:0x7f72ef694213
RSP: 002b:00007ffdd18046f8 EFLAGS: 00000202
 ORIG_RAX: 000000000000003d
RAX: ffffffffffffffda RBX: 000000000000186c RCX: 00007f72ef694213
RDX: 0000000040000000 RSI: 00007ffdd180470c RDI: 00000000ffffffff
RBP: 00007ffdd180470c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000c
R13: 0000000000000003 R14: 0000000000000009 R15: 0000000000000000
 </TASK>
task:syz-executor    state:S
 stack:23920 pid:6249  tgid:6249  ppid:6247   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_nanosleep+0x216/0x510 kernel/time/hrtimer.c:2032
 hrtimer_nanosleep+0x146/0x370 kernel/time/hrtimer.c:2080
 common_nsleep+0xa1/0xd0 kernel/time/posix-timers.c:1365
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1411 [inline]
 __se_sys_clock_nanosleep kernel/time/posix-timers.c:1388 [inline]
 __x64_sys_clock_nanosleep+0x344/0x4a0 kernel/time/posix-timers.c:1388
 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: 0033:0x7f70779000a3
RSP: 002b:00007ffcfdfd0ca8 EFLAGS: 00000202
 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 000000000000017a RCX: 00007f70779000a3
RDX: 00007ffcfdfd0cc0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffcfdfd0d1c R08: 000000000001a520 R09: 00007f70785c2080
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000032
R13: 000000000008a53c R14: 000000000008a083 R15: 00007ffcfdfd0d70
 </TASK>
task:syz-executor    state:S stack:24064 pid:6252  tgid:6252  ppid:6248   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_nanosleep+0x216/0x510 kernel/time/hrtimer.c:2032
 hrtimer_nanosleep+0x146/0x370 kernel/time/hrtimer.c:2080
 common_nsleep+0xa1/0xd0 kernel/time/posix-timers.c:1365
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1411 [inline]
 __se_sys_clock_nanosleep kernel/time/posix-timers.c:1388 [inline]
 __x64_sys_clock_nanosleep+0x344/0x4a0 kernel/time/posix-timers.c:1388
 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: 0033:0x7f72ef6d00a3
RSP: 002b:00007ffdd18044f8 EFLAGS: 00000202
 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 000000000000014c RCX: 00007f72ef6d00a3
RDX: 00007ffdd1804510 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffdd180456c R08: 000000000001a520 R09: 00007f72f0396080
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000032
R13: 0000000000089b8e R14: 0000000000089b8e R15: 00007ffdd18045c0
 </TASK>
task:syz-executor    state:S
 stack:25296 pid:6280  tgid:6280  ppid:2641   flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690