INFO: task syz-executor.1:16566 blocked for more than 143 seconds.
Not tainted 6.2.0-rc6-syzkaller-00050-g9f266ccaa2f5 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:19880 pid:16566 ppid:5096 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0x995/0xe20 kernel/sched/core.c:6606
schedule+0xcb/0x190 kernel/sched/core.c:6682
__wait_on_freeing_inode fs/inode.c:2196 [inline]
find_inode_fast+0x35a/0x4c0 fs/inode.c:950
iget_locked+0xb1/0x830 fs/inode.c:1273
__ext4_iget+0x22e/0x3ed0 fs/ext4/inode.c:4861
ext4_xattr_inode_iget+0x68/0x4e0 fs/ext4/xattr.c:391
ext4_xattr_inode_get+0x136/0x400 fs/ext4/xattr.c:506
ext4_xattr_move_to_block fs/ext4/xattr.c:2584 [inline]
ext4_xattr_make_inode_space fs/ext4/xattr.c:2685 [inline]
ext4_expand_extra_isize_ea+0xf93/0x1cd0 fs/ext4/xattr.c:2777
__ext4_expand_extra_isize+0x30b/0x410 fs/ext4/inode.c:5957
ext4_try_to_expand_extra_isize fs/ext4/inode.c:6000 [inline]
__ext4_mark_inode_dirty+0x51a/0x670 fs/ext4/inode.c:6078
ext4_evict_inode+0xb7c/0x10b0 fs/ext4/inode.c:279
evict+0x2a4/0x620 fs/inode.c:664
ext4_orphan_cleanup+0xb60/0x1340 fs/ext4/orphan.c:474
__ext4_fill_super fs/ext4/super.c:5516 [inline]
ext4_fill_super+0x81cd/0x8700 fs/ext4/super.c:5644
get_tree_bdev+0x400/0x620 fs/super.c:1282
vfs_get_tree+0x88/0x270 fs/super.c:1489
do_new_mount+0x289/0xad0 fs/namespace.c:3145
do_mount fs/namespace.c:3488 [inline]
__do_sys_mount fs/namespace.c:3697 [inline]
__se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3674
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ff191e8d5fa
RSP: 002b:00007ff192be2f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 000000000000043b RCX: 00007ff191e8d5fa
RDX: 0000000020000440 RSI: 00000000200000c0 RDI: 00007ff192be2fe0
RBP: 00007ff192be3020 R08: 00007ff192be3020 R09: 0000000000800700
R10: 0000000000800700 R11: 0000000000000202 R12: 0000000020000440
R13: 00000000200000c0 R14: 00007ff192be2fe0 R15: 0000000020000100
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8d326f10 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8d327710 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
2 locks held by kworker/1:1/26:
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc90000a1fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
1 lock held by khungtaskd/28:
#0: ffffffff8d326d40 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
3 locks held by kworker/u4:3/46:
#0: ffff8880b983a1d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x25/0x110 kernel/sched/core.c:537
#1: ffffc90000b77d00 ((work_completion)(&(&kfence_timer)->work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
#2: ffff88807dec0d40 (&wdev->mtx){+.+.}-{3:3}, at: sdata_lock net/mac80211/ieee80211_i.h:1114 [inline]
#2: ffff88807dec0d40 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x9b/0x1540 net/mac80211/ibss.c:1680
2 locks held by kworker/1:3/4737:
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc9000321fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
2 locks held by getty/4752:
#0: ffff888027fa7098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x53b/0x1650 drivers/tty/n_tty.c:2177
2 locks held by kworker/1:4/5161:
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc9000405fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
2 locks held by kworker/1:5/5165:
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc900040afd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
2 locks held by kworker/1:6/5168:
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc900040dfd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
2 locks held by kworker/1:9/5189:
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc9000413fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
3 locks held by kworker/1:10/5397:
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc900051cfd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
#2: ffffffff8d32c3b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:324 [inline]
#2: ffffffff8d32c3b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x455/0x860 kernel/rcu/tree_exp.h:946
2 locks held by kworker/1:12/5399:
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc90004eefd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
2 locks held by kworker/1:13/5400:
#0: ffff888012872538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc90004e2fd00 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
2 locks held by kworker/1:15/5402:
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc9000520fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
2 locks held by kworker/1:16/5403:
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc9000521fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
2 locks held by kworker/1:18/6522:
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1:
ffffc90003bcfd00
((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
2 locks held by kworker/1:24/19221:
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc9000381fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
2 locks held by kworker/1:28/19225:
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc9000385fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
2 locks held by kworker/1:11/1900:
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc90010b0fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
2 locks held by kworker/1:30/2928:
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc90005757d00
(
(work_completion)(&pwq->unbound_release_work)
){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
3 locks held by syz-executor.1/16566:
#0: ffff88807be4c0e0 (&type->s_umount_key#27/1){+.+.}-{3:3}, at: alloc_super+0x212/0x920 fs/super.c:228
#1: ffff88807be4c650 (sb_internal){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1814 [inline]
#1: ffff88807be4c650 (sb_internal){.+.+}-{0:0}, at: sb_start_intwrite include/linux/fs.h:1936 [inline]
#1: ffff88807be4c650 (sb_internal){.+.+}-{0:0}, at: ext4_evict_inode+0x4cd/0x10b0 fs/ext4/inode.c:240
#2: ffff8880310632f0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_trylock_xattr fs/ext4/xattr.h:162 [inline]
#2: ffff8880310632f0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_try_to_expand_extra_isize fs/ext4/inode.c:5997 [inline]
#2: ffff8880310632f0 (&ei->xattr_sem){++++}-{3:3}, at: __ext4_mark_inode_dirty+0x479/0x670 fs/ext4/inode.c:6078
1 lock held by syz-executor.2/19423:
#0: ffffffff8d32c3b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:324 [inline]
#0: ffffffff8d32c3b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x455/0x860 kernel/rcu/tree_exp.h:946
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc6-syzkaller-00050-g9f266ccaa2f5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1b1/0x290 lib/dump_stack.c:106
nmi_cpu_backtrace+0x46f/0x4f0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1ba/0x420 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xcd5/0xd20 kernel/hung_task.c:377
kthread+0x266/0x300 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: 19405 Comm: syz-executor.3 Not tainted 6.2.0-rc6-syzkaller-00050-g9f266ccaa2f5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
RIP: 0010:lock_acquire+0x78/0x3c0 kernel/locking/lockdep.c:5636
Code: 48 c7 44 24 30 00 f8 69 81 4c 8d 6c 24 20 49 c1 ed 03 48 b8 f1 f1 f1 f1 00 f2 f2 f2 4b 89 44 25 00 43 c7 44 25 09 f2 f2 f2 00 <43> c7 44 25 11 f3 f3 f3 f3 66 43 c7 44 25 15 f3 f3 43 c6 44 25 17
RSP: 0018:ffffc9000b52f3a0 EFLAGS: 00000806
RAX: f2f2f200f1f1f1f1 RBX: ffffffff8d326d40 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8d326d40
RBP: ffffc9000b52f4d0 R08: 0000000000000000 R09: 0000000000000000
R10: fffff940001bb9c9 R11: 1ffffd40001bb9c8 R12: dffffc0000000000
R13: 1ffff920016a5e78 R14: 0000000000000000 R15: 0000000000000000
FS: 00007f3e197a9700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5caa641000 CR3: 000000002a7d7000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_lock_acquire+0x20/0x30 include/linux/rcupdate.h:325
rcu_read_lock include/linux/rcupdate.h:764 [inline]
__mod_lruvec_page_state+0xa8/0x320 mm/memcontrol.c:835
__lruvec_stat_mod_folio include/linux/vmstat.h:609 [inline]
filemap_unaccount_folio+0x135/0xae0 mm/filemap.c:183
__filemap_remove_folio mm/filemap.c:222 [inline]
filemap_remove_folio+0x132/0x310 mm/filemap.c:255
truncate_inode_folio+0x59/0x70 mm/truncate.c:196
shmem_undo_range+0x432/0x1fe0 mm/shmem.c:943
shmem_truncate_range mm/shmem.c:1042 [inline]
shmem_evict_inode+0x276/0xa10 mm/shmem.c:1151
evict+0x2a4/0x620 fs/inode.c:664
__dentry_kill+0x3b1/0x5b0 fs/dcache.c:607
dentry_kill+0xbb/0x290
dput+0x1f3/0x410 fs/dcache.c:913
__fput+0x5e4/0x880 fs/file_table.c:328
task_work_run+0x243/0x300 kernel/task_work.c:179
get_signal+0x1606/0x17c0 kernel/signal.c:2635
arch_do_signal_or_restart+0x7b/0x5e0 arch/x86/kernel/signal.c:306
exit_to_user_mode_loop+0x74/0x150 kernel/entry/common.c:168
exit_to_user_mode_prepare+0xb2/0x140 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x26/0x60 kernel/entry/common.c:296
do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f3e18a8beb7
Code: 3c 1c 48 f7 d8 49 39 c4 72 b8 e8 c4 57 02 00 85 c0 78 bd 48 83 c4 08 4c 89 e0 5b 41 5c c3 0f 1f 44 00 00 b8 10 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:00007f3e197a8f88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 0000000000000c09 RCX: 00007f3e18a8beb7
RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000005
RBP: 00007f3e197a96b8 R08: 00007f3e197a9020 R09: 0000000002000009
R10: 0000000002000009 R11: 0000000000000246 R12: ffffffffffffffff
R13: 0000000000000016 R14: 00007f3e197a8fe0 R15: 00000000200001c0