INFO: task syz-executor.0:28159 can't die for more than 143 seconds.
task:syz-executor.0 state:D stack:26768 pid:28159 ppid: 3633 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4e90 kernel/sched/core.c:6296
schedule+0xd2/0x260 kernel/sched/core.c:6369
request_wait_answer+0x49e/0x840 fs/fuse/dev.c:411
__fuse_request_send fs/fuse/dev.c:430 [inline]
fuse_simple_request+0x58a/0xcd0 fs/fuse/dev.c:515
fuse_send_open+0x200/0x2a0 fs/fuse/file.c:48
fuse_file_open+0x31f/0x630 fs/fuse/file.c:145
fuse_do_open fs/fuse/file.c:172 [inline]
fuse_open_common+0x29c/0x500 fs/fuse/file.c:254
do_dentry_open+0x4b9/0x1240 fs/open.c:824
do_open fs/namei.c:3476 [inline]
path_openat+0x1c9e/0x2940 fs/namei.c:3609
do_filp_open+0x1aa/0x400 fs/namei.c:3636
do_sys_openat2+0x16d/0x4d0 fs/open.c:1214
do_sys_open fs/open.c:1230 [inline]
__do_sys_openat fs/open.c:1246 [inline]
__se_sys_openat fs/open.c:1241 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1241
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: 0033:0x7fc1db1b0fe9
RSP: 002b:00007fc1d9b26168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fc1db2c3f60 RCX: 00007fc1db1b0fe9
RDX: 0000000000000000 RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007fc1db20b08d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc012634bf R14: 00007fc1d9b26300 R15: 0000000000022000
INFO: task syz-executor.0:28159 blocked for more than 143 seconds.
Not tainted 5.16.0-next-20220114-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:26768 pid:28159 ppid: 3633 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4e90 kernel/sched/core.c:6296
schedule+0xd2/0x260 kernel/sched/core.c:6369
request_wait_answer+0x49e/0x840 fs/fuse/dev.c:411
__fuse_request_send fs/fuse/dev.c:430 [inline]
fuse_simple_request+0x58a/0xcd0 fs/fuse/dev.c:515
fuse_send_open+0x200/0x2a0 fs/fuse/file.c:48
fuse_file_open+0x31f/0x630 fs/fuse/file.c:145
fuse_do_open fs/fuse/file.c:172 [inline]
fuse_open_common+0x29c/0x500 fs/fuse/file.c:254
do_dentry_open+0x4b9/0x1240 fs/open.c:824
do_open fs/namei.c:3476 [inline]
path_openat+0x1c9e/0x2940 fs/namei.c:3609
do_filp_open+0x1aa/0x400 fs/namei.c:3636
do_sys_openat2+0x16d/0x4d0 fs/open.c:1214
do_sys_open fs/open.c:1230 [inline]
__do_sys_openat fs/open.c:1246 [inline]
__se_sys_openat fs/open.c:1241 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1241
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: 0033:0x7fc1db1b0fe9
RSP: 002b:00007fc1d9b26168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fc1db2c3f60 RCX: 00007fc1db1b0fe9
RDX: 0000000000000000 RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007fc1db20b08d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc012634bf R14: 00007fc1d9b26300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8bb833a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6460
2 locks held by kworker/u4:3/54:
2 locks held by getty/3285:
#0: ffff88814b811098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc90002b632e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2077
4 locks held by kworker/0:4/3681:
#0: ffff8880b9c39c58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:489
#1: ffff8880b9c27948 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3e7/0x4e0 kernel/sched/psi.c:891
#2: ffff8880b9c28498 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x5a/0x1f0 kernel/time/timer.c:946
#3: ffffffff907472e0 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x12e/0x3e0 lib/debugobjects.c:661
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.16.0-next-20220114-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:256 [inline]
watchdog+0xcb7/0xed0 kernel/hung_task.c:413
kthread+0x2e9/0x3a0 kernel/kthread.c:377
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: 7172 Comm: kworker/u4:16 Not tainted 5.16.0-next-20220114-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:switch_mm_irqs_off+0x1d7/0xa10 arch/x86/mm/tlb.c:615
Code: 87 f3 05 00 00 8b 1c 24 be 08 00 00 00 48 89 d8 48 c1 f8 06 48 8d bc c5 68 06 00 00 e8 12 e9 8d 00 f0 48 0f ab 9d 68 06 00 00 <4c> 8d ad 20 04 00 00 be 08 00 00 00 4c 89 ef e8 e5 e8 8d 00 4c 89
RSP: 0018:ffffc900100279a8 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff813565de
RDX: ffffed10280f10ce RSI: 0000000000000008 RDI: ffff888140788668
RBP: ffff888140788000 R08: 0000000000000001 R09: ffff88814078866f
R10: ffffed10280f10cd R11: 0000000000000001 R12: ffffffff8bcb3380
R13: ffff88807c359d40 R14: 0000000000000000 R15: ffff88807c35a250
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc2c563f000 CR3: 000000000b88e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
use_temporary_mm arch/x86/kernel/alternative.c:924 [inline]
__text_poke+0x44a/0x8c0 arch/x86/kernel/alternative.c:1021
text_poke_bp_batch+0x2aa/0x510 arch/x86/kernel/alternative.c:1313
text_poke_flush arch/x86/kernel/alternative.c:1470 [inline]
text_poke_flush arch/x86/kernel/alternative.c:1467 [inline]
text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1477
arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
jump_label_update+0x1da/0x400 kernel/jump_label.c:830
static_key_disable_cpuslocked+0x152/0x1b0 kernel/jump_label.c:207
static_key_disable+0x16/0x20 kernel/jump_label.c:215
toggle_allocation_gate mm/kfence/core.c:748 [inline]
toggle_allocation_gate+0x183/0x390 mm/kfence/core.c:726
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess):
0: 87 f3 xchg %esi,%ebx
2: 05 00 00 8b 1c add $0x1c8b0000,%eax
7: 24 be and $0xbe,%al
9: 08 00 or %al,(%rax)
b: 00 00 add %al,(%rax)
d: 48 89 d8 mov %rbx,%rax
10: 48 c1 f8 06 sar $0x6,%rax
14: 48 8d bc c5 68 06 00 lea 0x668(%rbp,%rax,8),%rdi
1b: 00
1c: e8 12 e9 8d 00 callq 0x8de933
21: f0 48 0f ab 9d 68 06 lock bts %rbx,0x668(%rbp)
28: 00 00
* 2a: 4c 8d ad 20 04 00 00 lea 0x420(%rbp),%r13 <-- trapping instruction
31: be 08 00 00 00 mov $0x8,%esi
36: 4c 89 ef mov %r13,%rdi
39: e8 e5 e8 8d 00 callq 0x8de923
3e: 4c rex.WR
3f: 89 .byte 0x89