INFO: task syz-executor.5:5036 blocked for more than 143 seconds.
Not tainted 6.4.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:20952 pid:5036 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x187b/0x4900 kernel/sched/core.c:6669
schedule+0xc3/0x180 kernel/sched/core.c:6745
io_schedule+0x8c/0x100 kernel/sched/core.c:8979
bit_wait_io+0x12/0xc0 kernel/sched/wait_bit.c:209
__wait_on_bit_lock+0xbd/0x1a0 kernel/sched/wait_bit.c:90
out_of_line_wait_on_bit_lock+0x1d4/0x250 kernel/sched/wait_bit.c:117
lock_buffer include/linux/buffer_head.h:406 [inline]
hfs_mdb_commit+0xaf9/0xfd0 fs/hfs/mdb.c:325
hfs_sync_fs+0x15/0x20 fs/hfs/super.c:35
sync_filesystem+0xec/0x220 fs/sync.c:56
generic_shutdown_super+0x6f/0x340 fs/super.c:473
kill_block_super+0x84/0xf0 fs/super.c:1407
deactivate_locked_super+0xa4/0x110 fs/super.c:331
cleanup_mnt+0x426/0x4c0 fs/namespace.c:1177
task_work_run+0x24a/0x300 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:297
do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2e0668d5d7
RSP: 002b:00007ffc25e2f438 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f2e0668d5d7
RDX: 00007ffc25e2f50b RSI: 000000000000000a RDI: 00007ffc25e2f500
RBP: 00007ffc25e2f500 R08: 00000000ffffffff R09: 00007ffc25e2f2d0
R10: 0000555555816893 R11: 0000000000000246 R12: 00007f2e066e6cdc
R13: 00007ffc25e305c0 R14: 0000555555816810 R15: 00007ffc25e30600
INFO: task kworker/1:9:5262 blocked for more than 143 seconds.
Not tainted 6.4.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:9 state:D stack:25216 pid:5262 ppid:2 flags:0x00004000
Workqueue: events_long flush_mdb
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x187b/0x4900 kernel/sched/core.c:6669
schedule+0xc3/0x180 kernel/sched/core.c:6745
io_schedule+0x8c/0x100 kernel/sched/core.c:8979
bit_wait_io+0x12/0xc0 kernel/sched/wait_bit.c:209
__wait_on_bit_lock+0xbd/0x1a0 kernel/sched/wait_bit.c:90
out_of_line_wait_on_bit_lock+0x1d4/0x250 kernel/sched/wait_bit.c:117
lock_buffer include/linux/buffer_head.h:406 [inline]
hfs_mdb_commit+0x119/0xfd0 fs/hfs/mdb.c:271
process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2405
worker_thread+0xa63/0x1210 kernel/workqueue.c:2552
kthread+0x2b8/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8cf27670 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8cf27a30 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by khungtaskd/28:
#0: ffffffff8cf274a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/4751:
#0: ffff88802871a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2176
1 lock held by syz-executor.5/5036:
#0: ffff888023e1a0e0 (&type->s_umount_key#72){++++}-{3:3}, at: deactivate_super+0xad/0xf0 fs/super.c:361
2 locks held by kworker/1:9/5262:
#0: ffff888012471538 ((wq_completion)events_long){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378
#1: ffffc9000504fd20 ((work_completion)(&(&sbi->mdb_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380
3 locks held by kworker/u4:17/10256:
#0: ffff8880b993c1d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:558
#1: ffff8880b99287c8 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x441/0x770 kernel/sched/psi.c:996
#2: ffffffff8cf274a0 (rcu_read_lock){....}-{1:2}, at: spin_lock_bh include/linux/spinlock.h:355 [inline]
#2: ffffffff8cf274a0 (rcu_read_lock){....}-{1:2}, at: batadv_nc_purge_paths+0xe8/0x3a0 net/batman-adv/network-coding.c:442
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.4.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x187/0x300 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+0xec2/0xf00 kernel/hung_task.c:379
kthread+0x2b8/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 12 Comm: kworker/u4:1 Not tainted 6.4.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
Workqueue: phy8 ieee80211_iface_work
RIP: 0010:arch_stack_walk+0xfc/0x140 arch/x86/kernel/stacktrace.c:27
Code: ff ff 4c 89 e6 4c 89 fa e8 d1 e9 08 00 83 bd 70 ff ff ff 00 74 32 48 8d 9d 70 ff ff ff 48 89 df e8 79 c4 08 00 48 85 c0 74 1e <4c> 89 f7 48 89 c6 41 ff d5 84 c0 74 11 48 89 df e8 8f c5 08 00 83
RSP: 0018:ffffc900001174a0 EFLAGS: 00000286
RAX: ffffffff815b2ea0 RBX: ffffc900001174a0 RCX: ffffffff8f976000
RDX: ffffffff8fad8501 RSI: ffffc90000110000 RDI: ffffffff815b2ea0
RBP: ffffc90000117530 R08: ffffc90000117c50 R09: 0000000000000000
R10: ffffc900001174f0 R11: dffffc0000000001 R12: ffff888015e45940
R13: ffffffff81799f80 R14: ffffc90000117580 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f053206d580 CR3: 000000002a148000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
stack_trace_save+0x117/0x1c0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:45 [inline]
kasan_set_track+0x4f/0x70 mm/kasan/common.c:52
kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:521
____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236
kasan_slab_free include/linux/kasan.h:162 [inline]
slab_free_hook mm/slub.c:1781 [inline]
slab_free_freelist_hook mm/slub.c:1807 [inline]
slab_free mm/slub.c:3786 [inline]
__kmem_cache_free+0x264/0x3c0 mm/slub.c:3799
ieee80211_ibss_rx_queued_mgmt+0x1af7/0x2cf0
ieee80211_iface_process_skb net/mac80211/iface.c:1594 [inline]
ieee80211_iface_work+0x7bd/0xd00 net/mac80211/iface.c:1648
process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2405
worker_thread+0xa63/0x1210 kernel/workqueue.c:2552
kthread+0x2b8/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308