INFO: task syz-executor.1:12606 blocked for more than 143 seconds.
Not tainted 5.11.0-next-20210301-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28312 pid:12606 ppid: 8452 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4324 [inline]
__schedule+0x90c/0x21a0 kernel/sched/core.c:5075
schedule+0xcf/0x270 kernel/sched/core.c:5154
schedule_timeout+0x1db/0x250 kernel/time/timer.c:1868
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+0x168/0x270 kernel/sched/completion.c:138
io_sq_thread_park fs/io_uring.c:7082 [inline]
io_sq_thread_park+0xd5/0x130 fs/io_uring.c:7070
io_uring_cancel_task_requests+0x24c/0xd90 fs/io_uring.c:8720
__io_uring_files_cancel+0x110/0x1b0 fs/io_uring.c:8819
io_uring_files_cancel include/linux/io_uring.h:53 [inline]
do_exit+0x299/0x2a60 kernel/exit.c:780
do_group_exit+0x125/0x310 kernel/exit.c:922
get_signal+0x42c/0x2100 kernel/signal.c:2773
arch_do_signal_or_restart+0x2a8/0x1eb0 arch/x86/kernel/signal.c:811
handle_signal_work kernel/entry/common.c:147 [inline]
exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
exit_to_user_mode_prepare+0x148/0x250 kernel/entry/common.c:208
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:301
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x465ef9
RSP: 002b:00007fc5cb675218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 000000000056bf68 RCX: 0000000000465ef9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000056bf68
RBP: 000000000056bf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf6c
R13: 00007fff341d2e6f R14: 00007fc5cb675300 R15: 0000000000022000
INFO: task iou-sqp-12606:12608 can't die for more than 143 seconds.
task:iou-sqp-12606 state:D stack:29976 pid:12608 ppid: 8452 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4324 [inline]
__schedule+0x90c/0x21a0 kernel/sched/core.c:5075
schedule+0xcf/0x270 kernel/sched/core.c:5154
schedule_timeout+0x1db/0x250 kernel/time/timer.c:1868
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+0x168/0x270 kernel/sched/completion.c:138
io_sq_thread+0x283/0x19a0 fs/io_uring.c:6681
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
INFO: task iou-sqp-12606:12608 blocked for more than 143 seconds.
Not tainted 5.11.0-next-20210301-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:iou-sqp-12606 state:D stack:29976 pid:12608 ppid: 8452 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4324 [inline]
__schedule+0x90c/0x21a0 kernel/sched/core.c:5075
schedule+0xcf/0x270 kernel/sched/core.c:5154
schedule_timeout+0x1db/0x250 kernel/time/timer.c:1868
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+0x168/0x270 kernel/sched/completion.c:138
io_sq_thread+0x283/0x19a0 fs/io_uring.c:6681
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
INFO: task iou-sqp-12606:12613 can't die for more than 144 seconds.
task:iou-sqp-12606 state:D stack:30296 pid:12613 ppid: 8452 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4324 [inline]
__schedule+0x90c/0x21a0 kernel/sched/core.c:5075
schedule+0xcf/0x270 kernel/sched/core.c:5154
schedule_timeout+0x1db/0x250 kernel/time/timer.c:1868
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+0x168/0x270 kernel/sched/completion.c:138
io_sq_thread+0x283/0x19a0 fs/io_uring.c:6681
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
INFO: task iou-sqp-12606:12613 blocked for more than 144 seconds.
Not tainted 5.11.0-next-20210301-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:iou-sqp-12606 state:D stack:30296 pid:12613 ppid: 8452 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4324 [inline]
__schedule+0x90c/0x21a0 kernel/sched/core.c:5075
schedule+0xcf/0x270 kernel/sched/core.c:5154
schedule_timeout+0x1db/0x250 kernel/time/timer.c:1868
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+0x168/0x270 kernel/sched/completion.c:138
io_sq_thread+0x283/0x19a0 fs/io_uring.c:6681
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Showing all locks held in the system:
1 lock held by khungtaskd/1659:
#0: ffffffff8bf741e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6327
1 lock held by in:imklog/8136:
#0: ffff888012f6caf0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:961
2 locks held by agetty/8366:
#0: ffff88801c32c098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:266
#1: ffffc90000f4c2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xd5b/0x12f0 drivers/tty/n_tty.c:2178
1 lock held by syz-executor.1/12606:
#0: ffff88802b24d070 (&sqd->lock){+.+.}-{3:3}, at: io_sq_thread_park+0x5d/0x130 fs/io_uring.c:7075
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 1659 Comm: khungtaskd Not tainted 5.11.0-next-20210301-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0xfa/0x151 lib/dump_stack.c:120
nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105
nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:147 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:253 [inline]
watchdog+0xd8e/0xf40 kernel/hung_task.c:338
kthread+0x3b1/0x4a0 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4839 Comm: systemd-journal Not tainted 5.11.0-next-20210301-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:kasan_check_range+0x17/0x180 mm/kasan/generic.c:185
Code: 0f 1f 00 48 89 f2 be f8 00 00 00 e9 83 45 2a 02 0f 1f 00 48 85 f6 0f 84 70 01 00 00 49 89 f9 41 54 44 0f b6 c2 49 01 f1 55 53 <0f> 82 18 01 00 00 48 b8 ff ff ff ff ff 7f ff ff 48 39 c7 0f 86 05
RSP: 0018:ffffc90000007698 EFLAGS: 00000092
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff814e1b2a
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8dc67738
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8dc67740
R10: fffffbfff1b8cee9 R11: 0000000000000001 R12: 0000000000000000
R13: ffff888012398000 R14: ffff8880123988b8 R15: 0000000000000000
FS: 00007f676b6e78c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6768b19000 CR3: 0000000017017000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:71 [inline]
test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline]
cpumask_test_cpu include/linux/cpumask.h:373 [inline]
ttwu_queue_cond kernel/sched/core.c:3133 [inline]
ttwu_queue_wakelist+0x3a/0x360 kernel/sched/core.c:3157
ttwu_queue kernel/sched/core.c:3183 [inline]
try_to_wake_up+0x5cc/0x14a0 kernel/sched/core.c:3466
wake_up_worker kernel/workqueue.c:837 [inline]
insert_work+0x2a0/0x370 kernel/workqueue.c:1346
__queue_work+0x5c1/0xf00 kernel/workqueue.c:1497
queue_work_on+0xae/0xc0 kernel/workqueue.c:1524
queue_work include/linux/workqueue.h:507 [inline]
ieee80211_queue_work net/mac80211/util.c:932 [inline]
ieee80211_queue_work+0x129/0x160 net/mac80211/util.c:925
ieee80211_rx_h_mgmt net/mac80211/rx.c:3627 [inline]
ieee80211_rx_handlers+0x3b85/0xae60 net/mac80211/rx.c:3793
ieee80211_invoke_rx_handlers net/mac80211/rx.c:3823 [inline]
ieee80211_prepare_and_rx_handle+0x22ad/0x5070 net/mac80211/rx.c:4537
__ieee80211_rx_handle_packet net/mac80211/rx.c:4635 [inline]
ieee80211_rx_list+0x930/0x2680 net/mac80211/rx.c:4819
ieee80211_rx_napi+0xf7/0x3d0 net/mac80211/rx.c:4842
ieee80211_rx include/net/mac80211.h:4524 [inline]
ieee80211_tasklet_handler+0xd4/0x130 net/mac80211/main.c:235
tasklet_action_common.constprop.0+0x1d7/0x2d0 kernel/softirq.c:557
__do_softirq+0x29b/0x9f6 kernel/softirq.c:345
invoke_softirq kernel/softirq.c:221 [inline]
__irq_exit_rcu kernel/softirq.c:422 [inline]
irq_exit_rcu+0x134/0x200 kernel/softirq.c:434
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:40 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:75 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:107 [inline]
RIP: 0010:lock_release+0x14d/0x710 kernel/locking/lockdep.c:5526
Code: 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 4f 05 00 00 45 8b 8e 94 09 00 00 45 85 c9 0f 85 93 02 00 00 9c 8f 04 24 48 c7 c7 c0 94 6b 89 e8 a6 35 ab 07 48 89 da 83 e3 07 48 b8 00
RSP: 0018:ffffc9000134fd08 EFLAGS: 00000246
RAX: 0000000000000007 RBX: ffffffff8dc6a84c RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8880255cdd94
RBP: 1ffff92000269fa3 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8c08c760
R13: ffffffff81c65600 R14: ffff8880255cd400 R15: 0000000000000cc0
might_alloc include/linux/sched/mm.h:194 [inline]
slab_pre_alloc_hook mm/slab.h:497 [inline]
slab_alloc_node mm/slub.c:2826 [inline]
slab_alloc mm/slub.c:2915 [inline]
kmem_cache_alloc+0x46/0x380 mm/slub.c:2920
getname_flags.part.0+0x50/0x4f0 fs/namei.c:138
getname_flags+0x9a/0xe0 include/linux/audit.h:319
getname fs/namei.c:209 [inline]
user_path_create fs/namei.c:3654 [inline]
do_mkdirat+0x8d/0x310 fs/namei.c:3832
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f676a9a2687
Code: 00 b8 ff ff ff ff c3 0f 1f 40 00 48 8b 05 09 d8 2b 00 64 c7 00 5f 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e1 d7 2b 00 f7 d8 64 89 01 48
RSP: 002b:00007ffccb9e6128 EFLAGS: 00000293 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007ffccb9e9190 RCX: 00007f676a9a2687
RDX: 0000000000000000 RSI: 00000000000001ed RDI: 0000557b4067b8a0
RBP: 00007ffccb9e6160 R08: 0000557b404d33e5 R09: 0000000000000018
R10: 0000000000000090 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000001 R14: 0000557b4067b8a0 R15: 00007ffccb9e67a0