INFO: task syz-executor.4:27255 blocked for more than 143 seconds.
Not tainted 6.4.0-syzkaller-10062-gf8566aa4f176 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:27384 pid:27255 ppid:6928 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: 0033:0x7f82c628c389
RSP: 002b:00007f82c4dfe168 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
RAX: ffffffffffffffda RBX: 00007f82c63abf80 RCX: 00007f82c628c389
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000000e
RBP: 00007f82c62d7493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc52dabacf R14: 00007f82c4dfe300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8c9a1af0 (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/14:
#0: ffffffff8c9a17f0 (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/28:
#0: ffffffff8c9a2700 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6615
1 lock held by udevd/4453:
#0: ffff8880b993c3d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:566 [inline]
#0: ffff8880b993c3d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x90/0x120 kernel/sched/core.c:551
2 locks held by getty/4751:
#0: ffff888028956098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900015b02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xf02/0x13f0 drivers/tty/n_tty.c:2176
2 locks held by kworker/u4:7/5113:
4 locks held by kworker/u4:9/6311:
#0: ffff888014667938 ((wq_completion)netns){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
#0: ffff888014667938 ((wq_completion)netns){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
#0: ffff888014667938 ((wq_completion)netns){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
#0: ffff888014667938 ((wq_completion)netns){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
#0: ffff888014667938 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
#0: ffff888014667938 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
#0: ffff888014667938 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x8fd/0x16f0 kernel/workqueue.c:2567
#1: ffffc900031ffdb0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x930/0x16f0 kernel/workqueue.c:2571
#2: ffffffff8e3aeb50 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x9f/0xb10 net/core/net_namespace.c:576
#3: ffffffff8c9ada80 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x48/0x6a0 kernel/rcu/tree.c:3997
1 lock held by syz-executor.3/6951:
#0: ffff8880307200e0 (&type->s_umount_key#71){++++}-{3:3}, at: deactivate_super+0xa9/0xd0 fs/super.c:360
2 locks held by kworker/1:2/22482:
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x8fd/0x16f0 kernel/workqueue.c:2567
#1: ffffc90015a77db0 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x930/0x16f0 kernel/workqueue.c:2571
2 locks held by syz-executor.4/27438:
#0: ffff8880321320e0 (&type->s_umount_key#71){++++}-{3:3}, at: deactivate_super+0xa9/0xd0 fs/super.c:360
#1: ffffffff8c9adbb8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
#1: ffffffff8c9adbb8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3e8/0x770 kernel/rcu/tree_exp.h:992
2 locks held by syz-executor.1/29481:
#0: ffffffff8c872048 (sched_core_mutex){+.+.}-{3:3}, at: sched_core_get+0x3b/0xa0 kernel/sched/core.c:419
#1: ffffffff8c9adbb8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
#1: ffffffff8c9adbb8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x64a/0x770 kernel/rcu/tree_exp.h:992
1 lock held by syz-executor.1/29483:
1 lock held by syz-executor.2/29486:
2 locks held by syz-executor.0/29489:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.4.0-syzkaller-10062-gf8566aa4f176 #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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 27438 Comm: syz-executor.4 Not tainted 6.4.0-syzkaller-10062-gf8566aa4f176 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:__lock_acquire+0x37f/0x5e20 kernel/locking/lockdep.c:5081
Code: e7 10 45 0f b7 f6 44 09 f0 41 81 e7 00 00 03 00 41 c1 e1 13 41 09 c7 8b 44 24 08 48 c1 ea 03 c1 e0 12 25 00 00 04 00 41 09 c7 <8b> 84 24 78 01 00 00 45 09 f9 c1 e0 14 41 09 c1 8b 84 24 68 01 00
RSP: 0018:ffffc90015a4f600 EFLAGS: 00000006
RAX: 0000000000000000 RBX: 1ffff92002b49ef2 RCX: 0000000000000000
RDX: 1ffff1100456751f RSI: 0000000000000004 RDI: ffff888022b3a8fc
RBP: ffff888022b3a8d8 R08: 1ffff1100456751a R09: 0000000000080000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888022b39dc0
R13: ffffffff8c9a2700 R14: 0000000000000000 R15: 0000000000020000
FS: 00005555557b5400(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2da2a000 CR3: 000000001bc2e000 CR4: 0000000000350ee0
Call Trace:
lock_acquire kernel/locking/lockdep.c:5761 [inline]
lock_acquire+0x1b1/0x520 kernel/locking/lockdep.c:5726
rcu_lock_acquire include/linux/rcupdate.h:302 [inline]
rcu_read_lock include/linux/rcupdate.h:748 [inline]
__mod_lruvec_page_state+0xa0/0x3f0 mm/memcontrol.c:859
__lruvec_stat_mod_folio include/linux/vmstat.h:615 [inline]
filemap_unaccount_folio mm/filemap.c:188 [inline]
filemap_unaccount_folio+0x17d/0x7d0 mm/filemap.c:153
__filemap_remove_folio mm/filemap.c:227 [inline]
filemap_remove_folio+0x14f/0x3f0 mm/filemap.c:260
truncate_inode_folio+0x4c/0x70 mm/truncate.c:196
shmem_undo_range+0x333/0x1130 mm/shmem.c:950
shmem_truncate_range mm/shmem.c:1049 [inline]
shmem_evict_inode+0x32f/0xb60 mm/shmem.c:1164
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:733 [inline]
dput+0x865/0xe10 fs/dcache.c:913
__fput+0x549/0xad0 fs/file_table.c:386
task_work_run+0x16f/0x270 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
exit_to_user_mode_prepare+0x210/0x240 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: 0033:0x7f3db108d7f7
Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd5d7bbf38 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f3db108d7f7
RDX: 00007ffd5d7bc00a RSI: 000000000000000a RDI: 00007ffd5d7bc000
RBP: 00007ffd5d7bc000 R08: 00000000ffffffff R09: 00007ffd5d7bbdd0
R10: 00005555557b6893 R11: 0000000000000246 R12: 00007f3db10d643b
R13: 00007ffd5d7bd0c0 R14: 00005555557b6810 R15: 00007ffd5d7bd100