INFO: task syz-executor.4:24228 blocked for more than 143 seconds.
Not tainted 5.16.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:28072 pid:24228 ppid: 6941 flags:0x00024004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
io_uring_cancel_generic+0x53d/0x690 fs/io_uring.c:9846
io_uring_files_cancel include/linux/io_uring.h:16 [inline]
do_exit+0x60c/0x2b40 kernel/exit.c:787
do_group_exit+0x125/0x310 kernel/exit.c:929
get_signal+0x47d/0x2220 kernel/signal.c:2852
arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868
handle_signal_work kernel/entry/common.c:148 [inline]
exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207
__syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f77d67b2ae7
RSP: 002b:00007f77d3d07218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 00000000000000ca RBX: 00007f77d68c6028 RCX: 00007f77d67b2ae9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f77d68c6028
RBP: 00007f77d68c6020 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f77d68c602c
R13: 00007f77d6df9b2f R14: 00007f77d3d07300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8bb83b60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458
2 locks held by systemd-journal/2970:
#0: ffff8880b9d39a98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:478
#1: ffff8880b9d279c8 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3a6/0x490 kernel/sched/psi.c:880
1 lock held by in:imklog/6239:
#0: ffff8880231e5770 (&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 5.16.0-rc1-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:111
nmi_trigger_cpumask_backtrace+0x1b3/0x230 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: 2970 Comm: systemd-journal Not tainted 5.16.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__sanitizer_cov_trace_pc+0x5c/0x60 kernel/kcov.c:210
Code: 82 80 15 00 00 83 f8 02 75 20 48 8b 8a 88 15 00 00 8b 92 84 15 00 00 48 8b 01 48 83 c0 01 48 39 c2 76 07 48 89 34 c1 48 89 01 0f 1f 00 41 55 41 54 49 89 fc 55 48 bd eb 83 b5 80 46 86 c8 61
RSP: 0018:ffffc9000205fd50 EFLAGS: 00000093
RAX: 0000000000000000 RBX: 0000000000000200 RCX: 0000000000000000
RDX: ffff88807a8fba00 RSI: ffffffff817ddd09 RDI: ffffffff907522c8
RBP: ffffffff907522c8 R08: 0000000000000000 R09: ffffffff907522cb
R10: fffffbfff20ea459 R11: 0000000000000000 R12: ffff888031954000
R13: dffffc0000000000 R14: 1ffff9200040bfb4 R15: ffffffff89ad6680
FS: 00007fa629dc68c0(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa626e97000 CR3: 000000001a2a3000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
trace_hardirqs_on+0x9/0x1c0 kernel/trace/trace_preemptirq.c:42
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
_raw_spin_unlock_irqrestore+0x50/0x70 kernel/locking/spinlock.c:194
debug_object_activate+0x1b3/0x3e0 lib/debugobjects.c:695
debug_rcu_head_queue kernel/rcu/rcu.h:176 [inline]
__call_rcu kernel/rcu/tree.c:2969 [inline]
call_rcu+0x2c/0x740 kernel/rcu/tree.c:3065
task_work_run+0xdd/0x1a0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop kernel/entry/common.c:175 [inline]
exit_to_user_mode_prepare+0x27e/0x290 kernel/entry/common.c:207
__syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fa629355840
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:00007ffefe7beb68 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: fffffffffffffffe RBX: 00007ffefe7bee70 RCX: 00007fa629355840
RDX: 00000000000001a0 RSI: 0000000000080042 RDI: 000055cfd369da60
RBP: 000000000000000d R08: 0000000000000000 R09: 00000000ffffffff
R10: 0000000000000069 R11: 0000000000000246 R12: 00000000ffffffff
R13: 000055cfd3690040 R14: 00007ffefe7bee30 R15: 000055cfd369d880
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 80 15 00 00 83 f8 02 adcb $0x2,-0x77d0000(%rip) # 0xf8830007
7: 75 20 jne 0x29
9: 48 8b 8a 88 15 00 00 mov 0x1588(%rdx),%rcx
10: 8b 92 84 15 00 00 mov 0x1584(%rdx),%edx
16: 48 8b 01 mov (%rcx),%rax
19: 48 83 c0 01 add $0x1,%rax
1d: 48 39 c2 cmp %rax,%rdx
20: 76 07 jbe 0x29
22: 48 89 34 c1 mov %rsi,(%rcx,%rax,8)
26: 48 89 01 mov %rax,(%rcx)
* 29: c3 retq <-- trapping instruction
2a: 0f 1f 00 nopl (%rax)
2d: 41 55 push %r13
2f: 41 54 push %r12
31: 49 89 fc mov %rdi,%r12
34: 55 push %rbp
35: 48 bd eb 83 b5 80 46 movabs $0x61c8864680b583eb,%rbp
3c: 86 c8 61