INFO: task kworker/u4:0:12874 blocked for more than 144 seconds.
Not tainted 6.3.0-rc6-next-20230413-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:0 state:D stack:25640 pid:12874 ppid:2 flags:0x00004000
Workqueue: nfc3_nci_rx_wq nci_rx_work
Call Trace:
context_switch kernel/sched/core.c:5334 [inline]
__schedule+0x1d23/0x5650 kernel/sched/core.c:6659
schedule+0xde/0x1a0 kernel/sched/core.c:6735
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6794
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747
device_lock include/linux/device.h:837 [inline]
nfc_targets_found+0xe8/0x3e0 net/nfc/core.c:778
nci_target_auto_activated net/nfc/nci/ntf.c:489 [inline]
nci_rf_intf_activated_ntf_packet net/nfc/nci/ntf.c:672 [inline]
nci_ntf_packet+0x1326/0x2bc0 net/nfc/nci/ntf.c:802
nci_rx_work+0x190/0x330 net/nfc/nci/core.c:1517
process_one_work+0x99a/0x15e0 kernel/workqueue.c:2405
worker_thread+0x67d/0x10c0 kernel/workqueue.c:2552
kthread+0x33e/0x440 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task kworker/1:7:20711 blocked for more than 144 seconds.
Not tainted 6.3.0-rc6-next-20230413-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:7 state:D stack:28392 pid:20711 ppid:2 flags:0x00004000
Workqueue: events nfc_urelease_event_work
Call Trace:
context_switch kernel/sched/core.c:5334 [inline]
__schedule+0x1d23/0x5650 kernel/sched/core.c:6659
schedule+0xde/0x1a0 kernel/sched/core.c:6735
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6794
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747
nci_request net/nfc/nci/core.c:149 [inline]
nci_stop_poll+0xf8/0x1d0 net/nfc/nci/core.c:873
nfc_stop_poll+0x10e/0x270 net/nfc/core.c:259
nfc_urelease_event_work+0x1a8/0x2d0 net/nfc/netlink.c:1842
process_one_work+0x99a/0x15e0 kernel/workqueue.c:2405
worker_thread+0x67d/0x10c0 kernel/workqueue.c:2552
kthread+0x33e/0x440 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task syz-executor.5:21001 blocked for more than 144 seconds.
Not tainted 6.3.0-rc6-next-20230413-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:27064 pid:21001 ppid:5110 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5334 [inline]
__schedule+0x1d23/0x5650 kernel/sched/core.c:6659
schedule+0xde/0x1a0 kernel/sched/core.c:6735
schedule_timeout+0x276/0x2b0 kernel/time/timer.c:2143
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x1ce/0x5c0 kernel/sched/completion.c:106
__flush_workqueue+0x3f5/0x13a0 kernel/workqueue.c:2977
nci_close_device+0x142/0x370 net/nfc/nci/core.c:579
nci_unregister_device+0x38/0x310 net/nfc/nci/core.c:1292
virtual_ncidev_close+0x52/0xb0 drivers/nfc/virtual_ncidev.c:163
__fput+0x27c/0xa90 fs/file_table.c:321
task_work_run+0x16f/0x270 kernel/task_work.c:179
get_signal+0x1c7/0x25b0 kernel/signal.c:2635
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:307
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297
do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f75a4a8c169
RSP: 002b:00007f75a5845168 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: fffffffffffffff2 RBX: 00007f75a4babf80 RCX: 00007f75a4a8c169
RDX: 0000000000000064 RSI: 0000000020000840 RDI: 0000000000000003
RBP: 00007f75a4ae7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe46c4bc8f R14: 00007f75a5845300 R15: 0000000000022000
INFO: task syz-executor.3:21038 blocked for more than 144 seconds.
Not tainted 6.3.0-rc6-next-20230413-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:26920 pid:21038 ppid:5123 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5334 [inline]
__schedule+0x1d23/0x5650 kernel/sched/core.c:6659
schedule+0xde/0x1a0 kernel/sched/core.c:6735
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6794
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747
nfc_register_device+0x32/0x3c0 net/nfc/core.c:1116
nci_register_device+0x7cb/0xb50 net/nfc/nci/core.c:1257
virtual_ncidev_open+0x14f/0x230 drivers/nfc/virtual_ncidev.c:148
misc_open+0x37a/0x4a0 drivers/char/misc.c:165
chrdev_open+0x26a/0x770 fs/char_dev.c:414
do_dentry_open+0x6cc/0x13f0 fs/open.c:920
do_open fs/namei.c:3560 [inline]
path_openat+0x1baa/0x2750 fs/namei.c:3715
do_filp_open+0x1ba/0x410 fs/namei.c:3742
do_sys_openat2+0x16d/0x4c0 fs/open.c:1356
do_sys_open fs/open.c:1372 [inline]
__do_sys_openat fs/open.c:1388 [inline]
__se_sys_openat fs/open.c:1383 [inline]
__x64_sys_openat+0x143/0x1f0 fs/open.c:1383
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f818048c169
RSP: 002b:00007f81811a1168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f81805abf80 RCX: 00007f818048c169
RDX: 0000000000000002 RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007f81804e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc4a087b2f R14: 00007f81811a1300 R15: 0000000000022000
INFO: task syz-executor.3:21048 blocked for more than 145 seconds.
Not tainted 6.3.0-rc6-next-20230413-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:28248 pid:21048 ppid:5123 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5334 [inline]
__schedule+0x1d23/0x5650 kernel/sched/core.c:6659
schedule+0xde/0x1a0 kernel/sched/core.c:6735
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6794
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747
misc_open+0x63/0x4a0 drivers/char/misc.c:129
chrdev_open+0x26a/0x770 fs/char_dev.c:414
do_dentry_open+0x6cc/0x13f0 fs/open.c:920
do_open fs/namei.c:3560 [inline]
path_openat+0x1baa/0x2750 fs/namei.c:3715
do_filp_open+0x1ba/0x410 fs/namei.c:3742
do_sys_openat2+0x16d/0x4c0 fs/open.c:1356
do_sys_open fs/open.c:1372 [inline]
__do_sys_openat fs/open.c:1388 [inline]
__se_sys_openat fs/open.c:1383 [inline]
__x64_sys_openat+0x143/0x1f0 fs/open.c:1383
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f818048c169
RSP: 002b:00007f818115f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f81805ac120 RCX: 00007f818048c169
RDX: 0000000000000002 RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007f81804e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc4a087b2f R14: 00007f818115f300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8c796bb0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:519
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8c7968b0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:519
1 lock held by khungtaskd/28:
#0: ffffffff8c7977c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x390 kernel/locking/lockdep.c:6545
2 locks held by kworker/u4:4/70:
1 lock held by klogd/4436:
#0: ffff8880b983c698 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:566 [inline]
#0: ffff8880b983c698 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x90/0x120 kernel/sched/core.c:551
2 locks held by getty/4756:
#0: ffff888029036098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2176
3 locks held by kworker/u4:0/12874:
#0: ffff88803095d138 ((wq_completion)nfc3_nci_rx_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff88803095d138 ((wq_completion)nfc3_nci_rx_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff88803095d138 ((wq_completion)nfc3_nci_rx_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1324 [inline]
#0: ffff88803095d138 ((wq_completion)nfc3_nci_rx_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:643 [inline]
#0: ffff88803095d138 ((wq_completion)nfc3_nci_rx_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:670 [inline]
#0: ffff88803095d138 ((wq_completion)nfc3_nci_rx_wq){+.+.}-{0:0}, at: process_one_work+0x883/0x15e0 kernel/workqueue.c:2376
#1: ffffc9000820fdb0 ((work_completion)(&ndev->rx_work)){+.+.}-{0:0}, at: process_one_work+0x8b7/0x15e0 kernel/workqueue.c:2380
#2: ffff88802e909100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline]
#2: ffff88802e909100 (&dev->mutex){....}-{3:3}, at: nfc_targets_found+0xe8/0x3e0 net/nfc/core.c:778
6 locks held by kworker/1:7/20711:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1324 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:643 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:670 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x883/0x15e0 kernel/workqueue.c:2376
#1: ffffc900059afdb0 ((work_completion)(&w->w)){+.+.}-{0:0}, at: process_one_work+0x8b7/0x15e0 kernel/workqueue.c:2380
#2: ffffffff8e59a528 (nfc_devlist_mutex){+.+.}-{3:3}, at: nfc_urelease_event_work+0x96/0x2d0 net/nfc/netlink.c:1833
#3: ffff88802e909508 (&genl_data->genl_data_mutex){+.+.}-{3:3}, at: nfc_urelease_event_work+0x143/0x2d0 net/nfc/netlink.c:1839
#4: ffff88802e909100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline]
#4: ffff88802e909100 (&dev->mutex){....}-{3:3}, at: nfc_stop_poll+0x2d/0x270 net/nfc/core.c:247
#5: ffff88802e969350 (&ndev->req_lock){+.+.}-{3:3}, at: nci_request net/nfc/nci/core.c:149 [inline]
#5: ffff88802e969350 (&ndev->req_lock){+.+.}-{3:3}, at: nci_stop_poll+0xf8/0x1d0 net/nfc/nci/core.c:873
1 lock held by syz-executor.5/21001:
#0: ffff88802e969350 (&ndev->req_lock){+.+.}-{3:3}, at: nci_close_device+0x6d/0x370 net/nfc/nci/core.c:561
2 locks held by syz-executor.3/21038:
#0: ffffffff8d270a48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x63/0x4a0 drivers/char/misc.c:129
#1: ffffffff8e59a528 (nfc_devlist_mutex){+.+.}-{3:3}, at: nfc_register_device+0x32/0x3c0 net/nfc/core.c:1116
1 lock held by syz-executor.3/21048:
#0: ffffffff8d270a48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x63/0x4a0 drivers/char/misc.c:129
1 lock held by syz-executor.5/21111:
#0: ffffffff8d270a48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x63/0x4a0 drivers/char/misc.c:129
1 lock held by syz-executor.3/21114:
#0: ffffffff8d270a48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x63/0x4a0 drivers/char/misc.c:129
1 lock held by syz-executor.5/21116:
#0: ffffffff8d270a48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x63/0x4a0 drivers/char/misc.c:129
1 lock held by syz-executor.3/21118:
#0: ffffffff8d270a48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x63/0x4a0 drivers/char/misc.c:129
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.3.0-rc6-next-20230413-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106
nmi_cpu_backtrace+0x29c/0x350 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x2a4/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xe16/0x1090 kernel/hung_task.c:379
kthread+0x33e/0x440 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4429 Comm: syslogd Not tainted 6.3.0-rc6-next-20230413-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
RIP: 0010:debug_check_no_obj_freed+0x2b1/0x420 lib/debugobjects.c:1028
Code: 8b 35 3b 3b 63 0a 48 83 c4 50 b9 0a 00 00 00 48 c7 c2 60 33 10 8d 5b bf 08 00 00 00 5d 41 5c 41 5d 41 5e 41 5f e9 ff 86 3d fd <48> 83 c4 50 5b 5d 41 5c 41 5d 41 5e 41 5f c3 49 8d 78 20 4c 89 cd
RSP: 0018:ffffc9000315f8b0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff88807a7ddc00 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffff88801244f140 R08: 0000000000000001 R09: ffffffff9150dcef
R10: 0000000000000001 R11: 0000000000000000 R12: 1ffffffff2401da5
R13: 0000000000000000 R14: dead000000000100 R15: dffffc0000000000
FS: 00007f76e61df800(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c007ccd000 CR3: 000000001d2a3000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
slab_free_hook mm/slub.c:1756 [inline]
slab_free_freelist_hook+0xeb/0x1c0 mm/slub.c:1807
slab_free mm/slub.c:3786 [inline]
__kmem_cache_free+0xaf/0x2d0 mm/slub.c:3799
skb_kfree_head net/core/skbuff.c:856 [inline]
skb_free_head+0x108/0x1a0 net/core/skbuff.c:868
skb_release_data+0x57a/0x820 net/core/skbuff.c:897
skb_release_all net/core/skbuff.c:962 [inline]
__kfree_skb net/core/skbuff.c:976 [inline]
consume_skb net/core/skbuff.c:1189 [inline]
consume_skb+0xd0/0x170 net/core/skbuff.c:1183
__unix_dgram_recvmsg+0x42c/0xb90 net/unix/af_unix.c:2532
unix_dgram_recvmsg+0xc4/0xf0 net/unix/af_unix.c:2549
sock_recvmsg_nosec net/socket.c:1017 [inline]
sock_recvmsg+0xe2/0x160 net/socket.c:1038
sock_read_iter+0x2bd/0x3b0 net/socket.c:1116
call_read_iter include/linux/fs.h:1848 [inline]
new_sync_read fs/read_write.c:389 [inline]
vfs_read+0x81c/0x950 fs/read_write.c:470
ksys_read+0x1ec/0x250 fs/read_write.c:613
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f76e636b8fe
Code: c0 e9 e6 fe ff ff 50 48 8d 3d 0e c7 09 00 e8 c9 cf 01 00 66 0f 1f 84 00 00 00 00 00 64 8b 04 25 18 00 00 00 85 c0 75 14 0f 05 <48> 3d 00 f0 ff ff 77 5a c3 66 0f 1f 84 00 00 00 00 00 48 83 ec 28
RSP: 002b:00007ffeee6404b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f76e636b8fe
RDX: 00000000000000ff RSI: 0000555806060950 RDI: 0000000000000000
RBP: 0000555806060910 R08: 00007f76e63fb040 R09: 00007f76e63fb0c0
R10: 00007f76e63fafc0 R11: 0000000000000246 R12: 00005558060609d3
R13: 0000555806060950 R14: 0000000000000000 R15: 0000000000000000