INFO: task jbd2/sda1-8:4409 blocked for more than 143 seconds.
Not tainted 6.2.0-next-20230303-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jbd2/sda1-8 state:D stack:24976 pid:4409 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5305 [inline]
__schedule+0x24b4/0x5ac0 kernel/sched/core.c:6623
schedule+0xde/0x1a0 kernel/sched/core.c:6699
jbd2_journal_wait_updates+0x120/0x240 fs/jbd2/transaction.c:862
jbd2_journal_commit_transaction+0x7ad/0x6a70 fs/jbd2/commit.c:458
kjournald2+0x1d4/0x890 fs/jbd2/journal.c:209
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task syz-executor.2:5122 blocked for more than 143 seconds.
Not tainted 6.2.0-next-20230303-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:23952 pid:5122 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5305 [inline]
__schedule+0x24b4/0x5ac0 kernel/sched/core.c:6623
schedule+0xde/0x1a0 kernel/sched/core.c:6699
jbd2_log_wait_commit+0x2d6/0x430 fs/jbd2/journal.c:708
jbd2_journal_stop+0x5f5/0xfd0 fs/jbd2/transaction.c:1959
__ext4_journal_stop+0xe2/0x1f0 fs/ext4/ext4_jbd2.c:133
__ext4_unlink+0x6a5/0xcd0 fs/ext4/namei.c:3274
ext4_unlink+0x1e6/0x850 fs/ext4/namei.c:3299
vfs_unlink+0x355/0x930 fs/namei.c:4250
do_unlinkat+0x3df/0x670 fs/namei.c:4316
__do_sys_unlink fs/namei.c:4364 [inline]
__se_sys_unlink fs/namei.c:4362 [inline]
__x64_sys_unlink+0xca/0x110 fs/namei.c:4362
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: 0033:0x7f7c0728ba67
RSP: 002b:00007fffef29d818 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7c0728ba67
RDX: 00007fffef29d850 RSI: 00007fffef29d850 RDI: 00007fffef29d8e0
RBP: 00007fffef29d8e0 R08: 0000000000000001 R09: 00007fffef29d6b0
R10: 0000555556ea2873 R11: 0000000000000206 R12: 00007f7c072e6b24
R13: 00007fffef29e9a0 R14: 0000555556ea2810 R15: 00007fffef29e9e0
INFO: task syz-executor.0:16359 blocked for more than 143 seconds.
Not tainted 6.2.0-next-20230303-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:24160 pid:16359 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5305 [inline]
__schedule+0x24b4/0x5ac0 kernel/sched/core.c:6623
schedule+0xde/0x1a0 kernel/sched/core.c:6699
jbd2_log_wait_commit+0x2d6/0x430 fs/jbd2/journal.c:708
jbd2_journal_stop+0x5f5/0xfd0 fs/jbd2/transaction.c:1959
__ext4_journal_stop+0xe2/0x1f0 fs/ext4/ext4_jbd2.c:133
__ext4_unlink+0x6a5/0xcd0 fs/ext4/namei.c:3274
ext4_unlink+0x1e6/0x850 fs/ext4/namei.c:3299
vfs_unlink+0x355/0x930 fs/namei.c:4250
do_unlinkat+0x3df/0x670 fs/namei.c:4316
__do_sys_unlink fs/namei.c:4364 [inline]
__se_sys_unlink fs/namei.c:4362 [inline]
__x64_sys_unlink+0xca/0x110 fs/namei.c:4362
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: 0033:0x7fb15c48ba67
RSP: 002b:00007fffe2b55188 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb15c48ba67
RDX: 00007fffe2b551c0 RSI: 00007fffe2b551c0 RDI: 00007fffe2b55250
RBP: 00007fffe2b55250 R08: 0000000000000001 R09: 00007fffe2b55020
R10: 000055555574e873 R11: 0000000000000206 R12: 00007fb15c4e6b24
R13: 00007fffe2b56310 R14: 000055555574e810 R15: 00007fffe2b56350
INFO: task syz-executor.4:26110 blocked for more than 144 seconds.
Not tainted 6.2.0-next-20230303-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:24472 pid:26110 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5305 [inline]
__schedule+0x24b4/0x5ac0 kernel/sched/core.c:6623
schedule+0xde/0x1a0 kernel/sched/core.c:6699
jbd2_log_wait_commit+0x2d6/0x430 fs/jbd2/journal.c:708
jbd2_journal_stop+0x5f5/0xfd0 fs/jbd2/transaction.c:1959
__ext4_journal_stop+0xe2/0x1f0 fs/ext4/ext4_jbd2.c:133
ext4_rmdir fs/ext4/namei.c:3203 [inline]
ext4_rmdir+0xaab/0xef0 fs/ext4/namei.c:3117
vfs_rmdir.part.0+0x1b0/0x5a0 fs/namei.c:4121
vfs_rmdir fs/namei.c:4106 [inline]
do_rmdir+0x3a8/0x420 fs/namei.c:4180
__do_sys_unlinkat fs/namei.c:4358 [inline]
__se_sys_unlinkat fs/namei.c:4352 [inline]
__x64_sys_unlinkat+0xef/0x130 fs/namei.c:4352
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: 0033:0x7f8172e8ba97
RSP: 002b:00007ffe9dd824e8 EFLAGS: 00000207 ORIG_RAX: 0000000000000107
RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 00007f8172e8ba97
RDX: 0000000000000200 RSI: 00007ffe9dd83670 RDI: 00000000ffffff9c
RBP: 00007ffe9dd825b0 R08: 0000000000000000 R09: 00007ffe9dd82380
R10: 00005555559ac8e3 R11: 0000000000000207 R12: 00007f8172ee6b24
R13: 00007ffe9dd83670 R14: 00005555559ac810 R15: 00007ffe9dd836b0
INFO: task syz-executor.3:29969 blocked for more than 144 seconds.
Not tainted 6.2.0-next-20230303-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:24528 pid:29969 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5305 [inline]
__schedule+0x24b4/0x5ac0 kernel/sched/core.c:6623
schedule+0xde/0x1a0 kernel/sched/core.c:6699
jbd2_log_wait_commit+0x2d6/0x430 fs/jbd2/journal.c:708
jbd2_journal_stop+0x5f5/0xfd0 fs/jbd2/transaction.c:1959
__ext4_journal_stop+0xe2/0x1f0 fs/ext4/ext4_jbd2.c:133
__ext4_unlink+0x6a5/0xcd0 fs/ext4/namei.c:3274
ext4_unlink+0x1e6/0x850 fs/ext4/namei.c:3299
vfs_unlink+0x355/0x930 fs/namei.c:4250
do_unlinkat+0x3df/0x670 fs/namei.c:4316
__do_sys_unlink fs/namei.c:4364 [inline]
__se_sys_unlink fs/namei.c:4362 [inline]
__x64_sys_unlink+0xca/0x110 fs/namei.c:4362
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: 0033:0x7f30c908ba67
RSP: 002b:00007ffefd5b0478 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f30c908ba67
RDX: 00007ffefd5b04b0 RSI: 00007ffefd5b04b0 RDI: 00007ffefd5b0540
RBP: 00007ffefd5b0540 R08: 0000000000000001 R09: 00007ffefd5b0310
R10: 000055555619b8e3 R11: 0000000000000206 R12: 00007f30c90e6b24
R13: 00007ffefd5b1600 R14: 000055555619b810 R15: 00007ffefd5b1640
INFO: task syz-executor.5:31190 blocked for more than 144 seconds.
Not tainted 6.2.0-next-20230303-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:25280 pid:31190 ppid:5120 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5305 [inline]
__schedule+0x24b4/0x5ac0 kernel/sched/core.c:6623
schedule+0xde/0x1a0 kernel/sched/core.c:6699
wait_transaction_locked+0x1cc/0x250 fs/jbd2/transaction.c:178
add_transaction_credits+0x10f/0xb70 fs/jbd2/transaction.c:241
start_this_handle+0x3ae/0x14e0 fs/jbd2/transaction.c:422
jbd2__journal_start+0x38a/0x6b0 fs/jbd2/transaction.c:520
__ext4_journal_start_sb+0x706/0x890 fs/ext4/ext4_jbd2.c:111
__ext4_journal_start fs/ext4/ext4_jbd2.h:326 [inline]
ext4_dirty_inode+0xa5/0x130 fs/ext4/inode.c:6105
__mark_inode_dirty+0x247/0x1250 fs/fs-writeback.c:2421
generic_update_time+0x21b/0x2b0 fs/inode.c:1860
inode_update_time fs/inode.c:1873 [inline]
__file_update_time fs/inode.c:2058 [inline]
file_modified_flags+0x2ce/0x320 fs/inode.c:2131
ext4_write_checks fs/ext4/file.c:268 [inline]
ext4_buffered_write_iter+0xf9/0x460 fs/ext4/file.c:284
ext4_file_write_iter+0xbe0/0x1740 fs/ext4/file.c:710
__kernel_write_iter+0x262/0x7a0 fs/read_write.c:517
__kernel_write+0xcb/0x110 fs/read_write.c:537
do_acct_process+0xd8d/0x1580 kernel/acct.c:540
slow_acct_process kernel/acct.c:598 [inline]
acct_process+0x410/0x570 kernel/acct.c:622
do_exit+0x1979/0x2b60 kernel/exit.c:859
do_group_exit+0xd4/0x2a0 kernel/exit.c:1019
get_signal+0x2315/0x25b0 kernel/signal.c:2859
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:296
do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f5a2e48c0f9
RSP: 002b:00007f5a2f261168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: 0000000000000044 RBX: 00007f5a2e5ac1f0 RCX: 00007f5a2e48c0f9
RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000008
RBP: 00007f5a2e4e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffca83a7abf R14: 00007f5a2f261300 R15: 0000000000022000
INFO: task syz-executor.1:31187 blocked for more than 145 seconds.
Not tainted 6.2.0-next-20230303-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:27816 pid:31187 ppid:16387 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5305 [inline]
__schedule+0x24b4/0x5ac0 kernel/sched/core.c:6623
schedule+0xde/0x1a0 kernel/sched/core.c:6699
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6758
rwsem_down_write_slowpath+0x3e2/0x1220 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write_nested+0x1d6/0x200 kernel/locking/rwsem.c:1690
inode_lock_nested include/linux/fs.h:793 [inline]
ext4_rename+0x1924/0x26d0 fs/ext4/namei.c:3879
ext4_rename2+0x1c7/0x270 fs/ext4/namei.c:4193
vfs_rename+0xef6/0x17a0 fs/namei.c:4772
do_renameat2+0xb62/0xc90 fs/namei.c:4923
__do_sys_renameat2 fs/namei.c:4956 [inline]
__se_sys_renameat2 fs/namei.c:4953 [inline]
__x64_sys_renameat2+0xe8/0x120 fs/namei.c:4953
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: 0033:0x7fadeb88c0f9
RSP: 002b:00007fadec520168 EFLAGS: 00000246 ORIG_RAX: 000000000000013c
RAX: ffffffffffffffda RBX: 00007fadeb9abf80 RCX: 00007fadeb88c0f9
RDX: 0000000000000003 RSI: 00000000200001c0 RDI: 0000000000000003
RBP: 00007fadeb8e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000200 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff4fb431ff R14: 00007fadec520300 R15: 0000000000022000
INFO: task syz-executor.1:31193 blocked for more than 145 seconds.
Not tainted 6.2.0-next-20230303-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28400 pid:31193 ppid:16387 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5305 [inline]
__schedule+0x24b4/0x5ac0 kernel/sched/core.c:6623
schedule+0xde/0x1a0 kernel/sched/core.c:6699
jbd2_log_wait_commit+0x2d6/0x430 fs/jbd2/journal.c:708
jbd2_journal_stop+0x5f5/0xfd0 fs/jbd2/transaction.c:1959
__ext4_journal_stop+0xe2/0x1f0 fs/ext4/ext4_jbd2.c:133
ext4_create+0x21e/0x4e0 fs/ext4/namei.c:2822
vfs_create fs/namei.c:3118 [inline]
vfs_create+0x1a9/0x3a0 fs/namei.c:3102
do_mknodat+0x3d9/0x530 fs/namei.c:3966
__do_sys_mknod fs/namei.c:3999 [inline]
__se_sys_mknod fs/namei.c:3997 [inline]
__x64_sys_mknod+0x11e/0x180 fs/namei.c:3997
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: 0033:0x7fadeb88c0f9
RSP: 002b:00007fadea1dd168 EFLAGS: 00000246 ORIG_RAX: 0000000000000085
RAX: ffffffffffffffda RBX: 00007fadeb9ac1f0 RCX: 00007fadeb88c0f9
RDX: 0000000000000702 RSI: 0000000000000000 RDI: 0000000020000140
RBP: 00007fadeb8e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff4fb431ff R14: 00007fadea1dd300 R15: 0000000000022000
INFO: task syz-executor.1:31194 blocked for more than 145 seconds.
Not tainted 6.2.0-next-20230303-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28376 pid:31194 ppid:16387 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5305 [inline]
__schedule+0x24b4/0x5ac0 kernel/sched/core.c:6623
schedule+0xde/0x1a0 kernel/sched/core.c:6699
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6758
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747
lock_rename+0x58/0x280 fs/namei.c:2995
ovl_workdir_ok fs/overlayfs/super.c:981 [inline]
ovl_get_workdir fs/overlayfs/super.c:1424 [inline]
ovl_fill_super+0x1aba/0x7270 fs/overlayfs/super.c:2000
mount_nodev+0x64/0x120 fs/super.c:1417
legacy_get_tree+0x109/0x220 fs/fs_context.c:610
vfs_get_tree+0x8d/0x350 fs/super.c:1501
do_new_mount fs/namespace.c:3042 [inline]
path_mount+0x1342/0x1e40 fs/namespace.c:3372
do_mount fs/namespace.c:3385 [inline]
__do_sys_mount fs/namespace.c:3594 [inline]
__se_sys_mount fs/namespace.c:3571 [inline]
__x64_sys_mount+0x283/0x300 fs/namespace.c:3571
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: 0033:0x7fadeb88c0f9
RSP: 002b:00007fade9fbc168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fadeb9ac2c0 RCX: 00007fadeb88c0f9
RDX: 00000000200002c0 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007fadeb8e7ae9 R08: 0000000020000080 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff4fb431ff R14: 00007fade9fbc300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8c7964f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:510
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8c7961f0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:510
1 lock held by khungtaskd/28:
#0: ffffffff8c797040 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x390 kernel/locking/lockdep.c:6495
4 locks held by klogd/4434:
#0: ffff8880b993c298 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2f/0x120 kernel/sched/core.c:539
#1: ffff88802a0f25b0 (&mm->cid_lock){....}-{2:2}, at: __wake_up_common_lock+0xb8/0x140 kernel/sched/wait.c:137
#2: ffff88807e080970 (&p->pi_lock){-.-.}-{2:2}, at: try_to_wake_up+0xae/0x1bf0 kernel/sched/core.c:4159
#3: ffff8880b993c298 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2f/0x120 kernel/sched/core.c:539
2 locks held by getty/4759:
#0: ffff88802c24c098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900015802f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177
3 locks held by syz-fuzzer/5107:
#0: ffff888046336368 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe7/0x100 fs/file.c:1046
#1: ffff888082a24030 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: iterate_dir+0xd1/0x6f0 fs/readdir.c:55
#2: ffff88814b4d6460 (sb_writers#4){.+.+}-{0:0}, at: file_accessed include/linux/fs.h:2181 [inline]
#2: ffff88814b4d6460 (sb_writers#4){.+.+}-{0:0}, at: iterate_dir+0x45d/0x6f0 fs/readdir.c:70
1 lock held by syz-executor.5/5120:
#0: ffff88807ac8b100 (&acct->lock#3){+.+.}-{3:3}, at: acct_get kernel/acct.c:180 [inline]
#0: ffff88807ac8b100 (&acct->lock#3){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:596 [inline]
#0: ffff88807ac8b100 (&acct->lock#3){+.+.}-{3:3}, at: acct_process+0x1e3/0x570 kernel/acct.c:622
3 locks held by syz-executor.2/5122:
#0: ffff88814b4d6460 (sb_writers#4){.+.+}-{0:0}, at: do_unlinkat+0x18c/0x670 fs/namei.c:4297
#1: ffff88807b9bca38 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:793 [inline]
#1: ffff88807b9bca38 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: do_unlinkat+0x27c/0x670 fs/namei.c:4301
#2: ffff88807b9bb628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#2: ffff88807b9bb628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: vfs_unlink+0xd9/0x930 fs/namei.c:4239
3 locks held by syz-executor.0/16359:
#0: ffff88814b4d6460 (sb_writers#4){.+.+}-{0:0}, at: do_unlinkat+0x18c/0x670 fs/namei.c:4297
#1: ffff888033c83628 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:793 [inline]
#1: ffff888033c83628 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: do_unlinkat+0x27c/0x670 fs/namei.c:4301
#2: ffff888033c87258 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#2: ffff888033c87258 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: vfs_unlink+0xd9/0x930 fs/namei.c:4239
3 locks held by syz-executor.4/26110:
#0: ffff88814b4d6460 (sb_writers#4){.+.+}-{0:0}, at: do_rmdir+0x1d4/0x420 fs/namei.c:4164
#1: ffff8880804c2218 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:793 [inline]
#1: ffff8880804c2218 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: do_rmdir+0x21f/0x420 fs/namei.c:4168
#2: ffff888082a8d440 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#2: ffff888082a8d440 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: vfs_rmdir.part.0+0x63/0x5a0 fs/namei.c:4110
3 locks held by kworker/u4:2/28673:
#0: ffff8880b993c298 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2f/0x120 kernel/sched/core.c:539
#1: ffff88802a0f25b0 (&mm->cid_lock){....}-{2:2}, at: mm_cid_get kernel/sched/sched.h:3280 [inline]
#1: ffff88802a0f25b0 (&mm->cid_lock){....}-{2:2}, at: switch_mm_cid kernel/sched/sched.h:3302 [inline]
#1: ffff88802a0f25b0 (&mm->cid_lock){....}-{2:2}, at: prepare_task_switch kernel/sched/core.c:5114 [inline]
#1: ffff88802a0f25b0 (&mm->cid_lock){....}-{2:2}, at: context_switch kernel/sched/core.c:5256 [inline]
#1: ffff88802a0f25b0 (&mm->cid_lock){....}-{2:2}, at: __schedule+0x2aef/0x5ac0 kernel/sched/core.c:6623
#2: ffff8880b9929698 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x5a/0x1f0 kernel/time/timer.c:999
3 locks held by syz-executor.3/29969:
#0: ffff88814b4d6460 (sb_writers#4){.+.+}-{0:0}, at: do_unlinkat+0x18c/0x670 fs/namei.c:4297
#1: ffff888033c81810 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:793 [inline]
#1: ffff888033c81810 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: do_unlinkat+0x27c/0x670 fs/namei.c:4301
#2: ffff888082a8f258 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#2: ffff888082a8f258 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: vfs_unlink+0xd9/0x930 fs/namei.c:4239
3 locks held by syz-executor.5/31190:
#0: ffff88807ac8b100 (&acct->lock#3){+.+.}-{3:3}, at: acct_get kernel/acct.c:180 [inline]
#0: ffff88807ac8b100 (&acct->lock#3){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:596 [inline]
#0: ffff88807ac8b100 (&acct->lock#3){+.+.}-{3:3}, at: acct_process+0x1e3/0x570 kernel/acct.c:622
#1: ffff88814b4d6460 (sb_writers#4){.+.+}-{0:0}, at: slow_acct_process kernel/acct.c:598 [inline]
#1: ffff88814b4d6460 (sb_writers#4){.+.+}-{0:0}, at: acct_process+0x410/0x570 kernel/acct.c:622
#2: ffff88802e238400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#2: ffff88802e238400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 fs/ext4/file.c:283
6 locks held by syz-executor.1/31187:
#0: ffff88814b4d6460 (sb_writers#4){.+.+}-{0:0}, at: do_renameat2+0x37f/0xc90 fs/namei.c:4859
#1: ffff88814b4d6748 (&type->s_vfs_rename_key){+.+.}-{3:3}, at: lock_rename+0x58/0x280 fs/namei.c:2995
#2: ffff888082a93628 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:793 [inline]
#2: ffff888082a93628 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: lock_rename+0xa4/0x280 fs/namei.c:2999
#3: ffff888077ec6850 (&type->i_mutex_dir_key#3/2){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:793 [inline]
#3: ffff888077ec6850 (&type->i_mutex_dir_key#3/2){+.+.}-{3:3}, at: lock_rename+0xd8/0x280 fs/namei.c:3000
#4: ffff88802b37a990 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xfb4/0x14e0 fs/jbd2/transaction.c:461
#5: ffff888082a1ac20 (&type->i_mutex_dir_key#3/4){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:793 [inline]
#5: ffff888082a1ac20 (&type->i_mutex_dir_key#3/4){+.+.}-{3:3}, at: ext4_rename+0x1924/0x26d0 fs/ext4/namei.c:3879
2 locks held by syz-executor.1/31193:
#0: ffff88814b4d6460 (sb_writers#4){.+.+}-{0:0}, at: filename_create+0xf1/0x4a0 fs/namei.c:3801
#1: ffff888082a1ac20 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:793 [inline]
#1: ffff888082a1ac20 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: filename_create+0x1aa/0x4a0 fs/namei.c:3808
2 locks held by syz-executor.1/31194:
#0: ffff88803e0660e0 (&type->s_umount_key#54/1){+.+.}-{3:3}, at: alloc_super+0x22e/0xb60 fs/super.c:228
#1: ffff88814b4d6748 (&type->s_vfs_rename_key){+.+.}-{3:3}, at: lock_rename+0x58/0x280 fs/namei.c:2995
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-next-20230303-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106
nmi_cpu_backtrace+0x316/0x3e0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x3a7/0x460 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+0xe94/0x11e0 kernel/hung_task.c:379
kthread+0x2e8/0x3a0 kernel/kthread.c:376
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: 11 Comm: kworker/u4:1 Not tainted 6.2.0-next-20230303-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x31/0x70 kernel/kcov.c:207
Code: 8d 00 7f 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b 14 25 80 b8 03 00 a9 00 01 ff 00 74 0e 85 c9 74 35 8b 82 74 15 00 00 <85> c0 74 2b 8b 82 50 15 00 00 83 f8 02 75 20 48 8b 8a 58 15 00 00
RSP: 0018:ffffc90000007c90 EFLAGS: 00000006
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000100
RDX: ffff8880167c3a80 RSI: ffffffff8153af02 RDI: 0000000000000005
RBP: ffffc90000007d60 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88802cbcd6d8
R13: ffff88802cbcd720 R14: 0000000000000000 R15: ffff88814a322800
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c019e540d0 CR3: 000000000c571000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_read_lock include/linux/rcupdate.h:774 [inline]
__queue_work+0x8a2/0x1170 kernel/workqueue.c:1447
call_timer_fn+0x1da/0x800 kernel/time/timer.c:1700
expire_timers+0xbb/0x330 kernel/time/timer.c:1746
__run_timers kernel/time/timer.c:2022 [inline]
__run_timers kernel/time/timer.c:1995 [inline]
run_timer_softirq+0x326/0x910 kernel/time/timer.c:2035
__do_softirq+0x2e3/0xae3 kernel/softirq.c:571
invoke_softirq kernel/softirq.c:445 [inline]
__irq_exit_rcu+0x114/0x190 kernel/softirq.c:650
irq_exit_rcu+0x9/0x20 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x97/0xc0 arch/x86/kernel/apic/apic.c:1107
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:csd_lock_wait kernel/smp.c:413 [inline]
RIP: 0010:smp_call_function_many_cond+0x4f3/0x1090 kernel/smp.c:987
Code: 00 45 85 e4 74 48 48 8b 04 24 49 89 c5 83 e0 07 49 c1 ed 03 49 89 c4 4d 01 fd 41 83 c4 03 e8 84 42 0b 00 f3 90 41 0f b6 45 00 <41> 38 c4 7c 08 84 c0 0f 85 98 09 00 00 8b 43 08 31 ff 83 e0 01 41
RSP: 0018:ffffc90000107950 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffff8880b9942f00 RCX: 0000000000000000
RDX: ffff8880167c3a80 RSI: ffffffff8179756c RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000003
R13: ffffed10173285e1 R14: 0000000000000001 R15: dffffc0000000000
on_each_cpu_cond_mask+0x5a/0xa0 kernel/smp.c:1155
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:1770 [inline]
text_poke_bp_batch+0x634/0x770 arch/x86/kernel/alternative.c:2053
text_poke_flush arch/x86/kernel/alternative.c:2161 [inline]
text_poke_flush arch/x86/kernel/alternative.c:2158 [inline]
text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:2168
arch_jump_label_transform_apply+0x17/0x30 arch/x86/kernel/jump_label.c:146
jump_label_update+0x32f/0x410 kernel/jump_label.c:829
static_key_disable_cpuslocked+0x156/0x1b0 kernel/jump_label.c:235
static_key_disable+0x1a/0x20 kernel/jump_label.c:243
toggle_allocation_gate mm/kfence/core.c:804 [inline]
toggle_allocation_gate+0x143/0x230 mm/kfence/core.c:791
process_one_work+0x9bf/0x1820 kernel/workqueue.c:2390
worker_thread+0x669/0x1090 kernel/workqueue.c:2537
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308