INFO: task syz-executor.1:32574 blocked for more than 143 seconds.
Not tainted 5.15.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28272 pid:32574 ppid: 6606 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4969 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6250
schedule+0xd2/0x260 kernel/sched/core.c:6323
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion_timeout+0x16f/0x280 kernel/sched/completion.c:157
usb_start_wait_urb+0x144/0x4c0 drivers/usb/core/message.c:63
usb_bulk_msg+0x226/0x550 drivers/usb/core/message.c:387
do_proc_bulk+0x3a3/0x750 drivers/usb/core/devio.c:1236
proc_bulk drivers/usb/core/devio.c:1273 [inline]
usbdev_do_ioctl drivers/usb/core/devio.c:2547 [inline]
usbdev_ioctl+0x586/0x36c0 drivers/usb/core/devio.c:2713
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl fs/ioctl.c:860 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fa2621a6ae9
RSP: 002b:00007fa25f71c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fa2622b9f60 RCX: 00007fa2621a6ae9
RDX: 0000000020000480 RSI: 00000000c0185502 RDI: 0000000000000006
RBP: 00007fa262200f25 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa2627edb2f R14: 00007fa25f71c300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8b9838e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6446
1 lock held by in:imklog/6171:
#0: ffff88801c49c370 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:105
nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xc1d/0xf50 kernel/hung_task.c:295
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 2935 Comm: systemd-journal Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:deref_stack_reg+0x20/0x150 arch/x86/kernel/unwind_orc.c:351
Code: 8a 00 48 8b 0c 24 eb 9d 66 90 48 b8 00 00 00 00 00 fc ff df 41 55 41 54 49 89 fc 55 48 89 f5 53 48 89 d3 48 89 fa 48 c1 ea 03 <48> 83 ec 08 0f b6 04 02 84 c0 74 08 3c 03 0f 8e d7 00 00 00 41 8b
RSP: 0018:ffffc90002b8f610 EFLAGS: 00000a06
RAX: dffffc0000000000 RBX: ffffc90002b8f750 RCX: 0000000000000000
RDX: 1ffff92000571ee2 RSI: ffffc90002b8ff18 RDI: ffffc90002b8f710
RBP: ffffc90002b8ff18 R08: ffffffff8df67e50 R09: 0000000000000001
R10: fffff52000571eed R11: 0000000000086089 R12: ffffc90002b8f710
R13: ffffc90002b8f745 R14: ffffc90002b8f710 R15: ffffc90002b8f744
FS: 00007fb4604d98c0(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb45dbcd000 CR3: 000000007ba1e000 CR4: 00000000003506e0
Call Trace:
unwind_next_frame+0x13e0/0x1ce0 arch/x86/kernel/unwind_orc.c:600
arch_stack_walk+0x7d/0xe0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121
kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38
kasan_record_aux_stack+0xe9/0x110 mm/kasan/generic.c:348
task_work_add+0x3a/0x190 kernel/task_work.c:38
fput_many.part.0+0xbb/0x170 fs/file_table.c:341
fput_many fs/file_table.c:336 [inline]
fput+0x3b/0x50 fs/file_table.c:357
path_openat+0x1a36/0x2740 fs/namei.c:3568
do_filp_open+0x1aa/0x400 fs/namei.c:3586
do_sys_openat2+0x16d/0x4d0 fs/open.c:1200
do_sys_open fs/open.c:1216 [inline]
__do_sys_open fs/open.c:1224 [inline]
__se_sys_open fs/open.c:1220 [inline]
__x64_sys_open+0x119/0x1c0 fs/open.c:1220
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fb45fa68840
Code: 73 01 c3 48 8b 0d 68 77 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 89 bb 20 00 00 75 10 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 1e f6 ff ff 48 89 04 24
RSP: 002b:00007fffbe4defe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007fffbe4df2f0 RCX: 00007fb45fa68840
RDX: 00000000000001a0 RSI: 0000000000080042 RDI: 000055d6b8610460
RBP: 000000000000000d R08: 0000000000000000 R09: 00000000ffffffff
R10: 0000000000000069 R11: 0000000000000246 R12: 00000000ffffffff
R13: 000055d6b8605040 R14: 00007fffbe4df2b0 R15: 000055d6b8610280
----------------
Code disassembly (best guess):
0: 8a 00 mov (%rax),%al
2: 48 8b 0c 24 mov (%rsp),%rcx
6: eb 9d jmp 0xffffffa5
8: 66 90 xchg %ax,%ax
a: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
11: fc ff df
14: 41 55 push %r13
16: 41 54 push %r12
18: 49 89 fc mov %rdi,%r12
1b: 55 push %rbp
1c: 48 89 f5 mov %rsi,%rbp
1f: 53 push %rbx
20: 48 89 d3 mov %rdx,%rbx
23: 48 89 fa mov %rdi,%rdx
26: 48 c1 ea 03 shr $0x3,%rdx
* 2a: 48 83 ec 08 sub $0x8,%rsp <-- trapping instruction
2e: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax
32: 84 c0 test %al,%al
34: 74 08 je 0x3e
36: 3c 03 cmp $0x3,%al
38: 0f 8e d7 00 00 00 jle 0x115
3e: 41 rex.B
3f: 8b .byte 0x8b