INFO: task syz-executor.0:14270 blocked for more than 143 seconds.
Not tainted 6.10.0-rc1-syzkaller-00104-gd8ec19857b09 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:27088 pid:14270 tgid:14269 ppid:11606 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6837
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
open_dummy_log fs/jfs/jfs_logmgr.c:1191 [inline]
lmLogOpen+0x972/0x1400 fs/jfs/jfs_logmgr.c:1066
jfs_mount_rw+0x2ea/0x700 fs/jfs/jfs_mount.c:257
jfs_fill_super+0x9d6/0xd20 fs/jfs/super.c:565
mount_bdev+0x1e3/0x2d0 fs/super.c:1659
legacy_get_tree+0x109/0x220 fs/fs_context.c:662
vfs_get_tree+0x8f/0x380 fs/super.c:1780
do_new_mount fs/namespace.c:3352 [inline]
path_mount+0x14e6/0x1f20 fs/namespace.c:3679
do_mount fs/namespace.c:3692 [inline]
__do_sys_mount fs/namespace.c:3898 [inline]
__se_sys_mount fs/namespace.c:3875 [inline]
__x64_sys_mount+0x297/0x320 fs/namespace.c:3875
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f482ae7e5ea
RSP: 002b:00007f482bb26ef8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f482bb26f80 RCX: 00007f482ae7e5ea
RDX: 00000000200001c0 RSI: 0000000020000200 RDI: 00007f482bb26f40
RBP: 00000000200001c0 R08: 00007f482bb26f80 R09: 0000000000008000
R10: 0000000000008000 R11: 0000000000000206 R12: 0000000020000200
R13: 00007f482bb26f40 R14: 00000000000061ac R15: 0000000020006880
Showing all locks held in the system:
3 locks held by kworker/1:0/25:
#0: ffff888015480948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x12bf/0x1b60 kernel/workqueue.c:3206
#1: ffffc900001f7d80 (free_ipc_work){+.+.}-{0:0}, at: process_one_work+0x957/0x1b60 kernel/workqueue.c:3207
#2: ffffffff8dbbd078 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock+0x1a4/0x3b0 kernel/rcu/tree_exp.h:323
1 lock held by khungtaskd/30:
#0: ffffffff8dbb18e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#0: ffffffff8dbb18e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#0: ffffffff8dbb18e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614
2 locks held by getty/4840:
#0: ffff88802a8ae0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc8/0x1490 drivers/tty/n_tty.c:2201
2 locks held by syz-fuzzer/5078:
2 locks held by syz-executor.1/12625:
#0: ffff88802b84e0e0 (&type->s_umount_key#102){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88802b84e0e0 (&type->s_umount_key#102){++++}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff88802b84e0e0 (&type->s_umount_key#102){++++}-{3:3}, at: deactivate_super+0xd6/0x100 fs/super.c:505
#1: ffffffff8e16cf08 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xc8/0x710 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor.4/13952:
#0: ffff88807f9d80e0 (&type->s_umount_key#102){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88807f9d80e0 (&type->s_umount_key#102){++++}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff88807f9d80e0 (&type->s_umount_key#102){++++}-{3:3}, at: deactivate_super+0xd6/0x100 fs/super.c:505
#1: ffffffff8e16cf08 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xc8/0x710 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor.0/14270:
#0: ffff8880223300e0 (&type->s_umount_key#101/1){+.+.}-{3:3}, at: alloc_super+0x23d/0xbd0 fs/super.c:344
#1: ffffffff8e16cf08 (jfs_log_mutex){+.+.}-{3:3}, at: open_dummy_log fs/jfs/jfs_logmgr.c:1191 [inline]
#1: ffffffff8e16cf08 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogOpen+0x972/0x1400 fs/jfs/jfs_logmgr.c:1066
1 lock held by syz-executor.0/15143:
#0: ffff88802b84e0e0 (&type->s_umount_key#102){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff88802b84e0e0 (&type->s_umount_key#102){++++}-{3:3}, at: super_lock+0x31a/0x3f0 fs/super.c:120
1 lock held by syz-executor.0/15699:
2 locks held by syz-executor.3/15705:
4 locks held by syz-executor.2/15706:
#0: ffff88807c498d88 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x26/0x90 net/bluetooth/hci_core.c:554
#1: ffff88807c498078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x339/0x1100 net/bluetooth/hci_sync.c:5050
#2: ffffffff8f9ad028 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1982 [inline]
#2: ffffffff8f9ad028 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xc4/0x260 net/bluetooth/hci_conn.c:2584
#3: ffffffff8dbbd078 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock+0x1a4/0x3b0 kernel/rcu/tree_exp.h:323
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc1-syzkaller-00104-gd8ec19857b09 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xf86/0x1240 kernel/hung_task.c:379
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5078 Comm: syz-fuzzer Not tainted 6.10.0-rc1-syzkaller-00104-gd8ec19857b09 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:stack_trace_consume_entry+0x0/0x170 kernel/stacktrace.c:83
Code: bb fc ff ff e8 21 2f 6e 09 48 89 df e8 09 33 70 00 e9 db fc ff ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 b8 00 00 00 00 00 fc ff df 55 53 48 89 fb 48 83 c7
RSP: 0018:ffffc900020df070 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffffffff82001835 RCX: ffffffff8134218e
RDX: ffff888025903c00 RSI: ffffffff82001835 RDI: ffffc900020df140
RBP: ffffc900020df110 R08: 0000000000000007 R09: 0000000000000000
R10: ffffffff82001835 R11: 0000000000000000 R12: ffffc900020df080
R13: ffffffff81797480 R14: ffffc900020df140 R15: ffff888025903c00
FS: 0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020111000 CR3: 000000000d97a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_stack_walk+0xe1/0x170 arch/x86/kernel/stacktrace.c:27
stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
save_stack+0x162/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x8d/0x400 mm/page_owner.c:297
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1088 [inline]
free_unref_folios+0x991/0x1310 mm/page_alloc.c:2614
folios_put_refs+0x487/0x6d0 mm/swap.c:1024
folio_batch_release include/linux/pagevec.h:101 [inline]
shmem_undo_range+0x5a1/0x1160 mm/shmem.c:1005
shmem_truncate_range mm/shmem.c:1114 [inline]
shmem_evict_inode+0x3a3/0xbb0 mm/shmem.c:1242
evict+0x2ed/0x6c0 fs/inode.c:667
iput_final fs/inode.c:1741 [inline]
iput.part.0+0x5a8/0x7f0 fs/inode.c:1767
iput+0x5c/0x80 fs/inode.c:1757
dentry_unlink_inode+0x295/0x480 fs/dcache.c:400
__dentry_kill+0x1d0/0x600 fs/dcache.c:603
dput.part.0+0x4b1/0x9b0 fs/dcache.c:845
dput+0x1f/0x30 fs/dcache.c:835
__fput+0x54e/0xbb0 fs/file_table.c:430
task_work_run+0x14e/0x250 kernel/task_work.c:180
exit_task_work include/linux/task_work.h:38 [inline]
do_exit+0xa9b/0x2ba0 kernel/exit.c:874
do_group_exit+0xd3/0x2a0 kernel/exit.c:1023
get_signal+0x2616/0x2710 kernel/signal.c:2909
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:310
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x14a/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x473523
Code: Unable to access opcode bytes at 0x4734f9.
RSP: 002b:000000c000067e80 EFLAGS: 00000202 ORIG_RAX: 00000000000000ca
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000473523
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000025c8ca0
RBP: 000000c000067ec8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c000067eb8 R11: 0000000000000202 R12: 000000c000067eb8
R13: 000000c000ef3800 R14: 000000c0000064e0 R15: 000000000000000d