INFO: task syz-executor.2:20953 blocked for more than 143 seconds.
Not tainted 6.4.0-syzkaller-10098-g995b406c7e97 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:28888 pid:20953 ppid:5022 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0xc9a/0x5880 kernel/sched/core.c:6710
schedule+0xde/0x1a0 kernel/sched/core.c:6786
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
init_module_from_file+0x300/0x6a0 kernel/module/main.c:3125
__do_sys_finit_module kernel/module/main.c:3171 [inline]
__se_sys_finit_module kernel/module/main.c:3154 [inline]
__x64_sys_finit_module+0xfd/0x190 kernel/module/main.c:3154
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: 0033:0x7f78a908c389
RSP: 002b:00007f78a9dbd168 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
RAX: ffffffffffffffda RBX: 00007f78a91ac050 RCX: 00007f78a908c389
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000004
RBP: 00007f78a90d7493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd4f96dbbf R14: 00007f78a9dbd300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8c99eab0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:522
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8c99e7b0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:522
1 lock held by khungtaskd/27:
#0: ffffffff8c99f6c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6615
2 locks held by getty/4742:
#0: ffff88814bdb7098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900020282f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xf02/0x13f0 drivers/tty/n_tty.c:2176
2 locks held by kworker/u4:28/6803:
4 locks held by kworker/u4:13/15689:
2 locks held by kworker/0:22/20565:
#0: ffff88801287a538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
#0: ffff88801287a538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
#0: ffff88801287a538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
#0: ffff88801287a538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
#0: ffff88801287a538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
#0: ffff88801287a538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
#0: ffff88801287a538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x8fd/0x16f0 kernel/workqueue.c:2567
#1: ffffc90004f9fdb0 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x930/0x16f0 kernel/workqueue.c:2571
4 locks held by kvm-nx-lpage-re/22621:
#0: ffffffff8c9e96c8 (cgroup_mutex){+.+.}-{3:3}, at: cgroup_lock include/linux/cgroup.h:369 [inline]
#0: ffffffff8c9e96c8 (cgroup_mutex){+.+.}-{3:3}, at: cgroup_attach_task_all+0x25/0x140 kernel/cgroup/cgroup-v1.c:61
#1: ffffffff8c845ff0 (cpu_hotplug_lock){++++}-{0:0}, at: cgroup_attach_lock+0x11/0x40 kernel/cgroup/cgroup.c:2404
#2: ffffffff8c9e9490 (cgroup_threadgroup_rwsem){++++}-{0:0}, at: cgroup_attach_lock+0x35/0x40 kernel/cgroup/cgroup.c:2406
#3: ffffffff8c9aab78 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
#3: ffffffff8c9aab78 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x64a/0x770 kernel/rcu/tree_exp.h:992
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 6.4.0-syzkaller-10098-g995b406c7e97 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
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:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xe16/0x1090 kernel/hung_task.c:379
kthread+0x344/0x440 kernel/kthread.c:389
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: 22655 Comm: syz-executor.1 Not tainted 6.4.0-syzkaller-10098-g995b406c7e97 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:variable_test_bit arch/x86/include/asm/bitops.h:228 [inline]
RIP: 0010:arch_test_bit arch/x86/include/asm/bitops.h:240 [inline]
RIP: 0010:_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:142 [inline]
RIP: 0010:hlock_class kernel/locking/lockdep.c:228 [inline]
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4805 [inline]
RIP: 0010:__lock_acquire+0x73f/0x5e20 kernel/locking/lockdep.c:5094
Code: 8e 13 2f 00 00 0f b7 5b 20 66 81 e3 ff 1f 0f b7 db be 08 00 00 00 48 89 d8 48 c1 e8 06 48 8d 3c c5 80 ae 84 91 e8 c1 40 71 00 <48> 0f a3 1d 89 bf 1f 10 0f 82 0a ff ff ff 48 c7 c0 c0 95 13 92 48
RSP: 0018:ffffc9000583f278 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 000000000000017b RCX: ffffffff8164eeef
RDX: fffffbfff23095d6 RSI: 0000000000000008 RDI: ffffffff9184aea8
RBP: ffff888080aa4b08 R08: 0000000000000000 R09: fffffbfff23095d5
R10: ffffffff9184aeaf R11: 0000000000000001 R12: ffff888080aa4040
R13: 0000000000000004 R14: dffffc0000000000 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4d1bc5a6b0 CR3: 000000007e42e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire kernel/locking/lockdep.c:5761 [inline]
lock_acquire+0x1b1/0x520 kernel/locking/lockdep.c:5726
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x3d/0x60 kernel/locking/spinlock.c:162
__debug_check_no_obj_freed lib/debugobjects.c:1020 [inline]
debug_check_no_obj_freed+0xcb/0x420 lib/debugobjects.c:1063
free_pages_prepare mm/page_alloc.c:1167 [inline]
free_unref_page_prepare+0x202/0xcb0 mm/page_alloc.c:2348
free_unref_page+0x33/0x370 mm/page_alloc.c:2443
slab_destroy mm/slab.c:1608 [inline]
slabs_destroy+0x85/0xc0 mm/slab.c:1628
cache_flusharray mm/slab.c:3341 [inline]
___cache_free+0x2c5/0x410 mm/slab.c:3404
qlink_free mm/kasan/quarantine.c:166 [inline]
qlist_free_all+0x4f/0x1a0 mm/kasan/quarantine.c:185
kasan_quarantine_reduce+0x195/0x220 mm/kasan/quarantine.c:292
__kasan_slab_alloc+0x63/0x90 mm/kasan/common.c:305
kasan_slab_alloc include/linux/kasan.h:186 [inline]
slab_post_alloc_hook mm/slab.h:750 [inline]
slab_alloc_node mm/slab.c:3237 [inline]
slab_alloc mm/slab.c:3246 [inline]
__kmem_cache_alloc_lru mm/slab.c:3423 [inline]
kmem_cache_alloc+0x1bd/0x3f0 mm/slab.c:3432
kmem_cache_zalloc include/linux/slab.h:690 [inline]
jbd2_alloc_handle include/linux/jbd2.h:1602 [inline]
new_handle fs/jbd2/transaction.c:476 [inline]
jbd2__journal_start+0x190/0x850 fs/jbd2/transaction.c:503
__ext4_journal_start_sb+0x411/0x5d0 fs/ext4/ext4_jbd2.c:111
__ext4_journal_start fs/ext4/ext4_jbd2.h:326 [inline]
ext4_evict_inode+0x616/0x1a30 fs/ext4/inode.c:223
evict+0x2ed/0x6b0 fs/inode.c:665
iput_final fs/inode.c:1789 [inline]
iput.part.0+0x50a/0x740 fs/inode.c:1815
iput+0x5c/0x80 fs/inode.c:1805
dentry_unlink_inode+0x2b1/0x460 fs/dcache.c:401
__dentry_kill+0x3c0/0x640 fs/dcache.c:607
dentry_kill fs/dcache.c:745 [inline]
dput+0x6ac/0xe10 fs/dcache.c:913
__fput+0x549/0xad0 fs/file_table.c:386
task_work_run+0x16f/0x270 kernel/task_work.c:179
exit_task_work include/linux/task_work.h:38 [inline]
do_exit+0xa9a/0x29a0 kernel/exit.c:874
do_group_exit+0xd4/0x2a0 kernel/exit.c:1024
get_signal+0x249b/0x25f0 kernel/signal.c:2877
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:308
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:310
exc_page_fault+0xc0/0x170 arch/x86/mm/fault.c:1545
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7f4d1ae27f47
Code: Unable to access opcode bytes at 0x7f4d1ae27f1d.
RSP: 002b:00007f4d1bbd81a0 EFLAGS: 00010206
RAX: 0000000000000000 RBX: 00007f4d1afac1f0 RCX: 00007f4d1ae8c389
RDX: 00007f4d1bbd81c0 RSI: 00007f4d1bbd82f0 RDI: 000000000000000b
RBP: 000000000000000b R08: 0000000000000000 R09: 0000000000000058
R10: 00007f4d1bbf7050 R11: 0000000000000246 R12: 0000000000000058
R13: 00007fff96f9ecaf R14: 00007f4d1bbf7300 R15: 0000000000022000