INFO: task syz-executor.5:21712 blocked for more than 143 seconds.
Not tainted 6.2.0-rc6-syzkaller-00273-g837c07cf68fe #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:24088 pid:21712 ppid:5096 flags:0x00004004
Call Trace:
__schedule+0x13ca/0x43c0
schedule+0xc3/0x190
find_inode_fast+0x34c/0x4a0
iget_locked+0xcb/0x830
__ext4_iget+0x23c/0x3e60
ext4_xattr_inode_iget+0x68/0x4e0
ext4_xattr_inode_get+0x13c/0x410
ext4_expand_extra_isize_ea+0xf30/0x1c40
__ext4_expand_extra_isize+0x302/0x400
__ext4_mark_inode_dirty+0x5d7/0x9a0
ext4_evict_inode+0xb7d/0x1230
evict+0x2a4/0x620
ext4_orphan_cleanup+0xb5b/0x1390
ext4_fill_super+0x8218/0x8740
get_tree_bdev+0x402/0x620
vfs_get_tree+0x8c/0x270
do_new_mount+0x28f/0xae0
__se_sys_mount+0x2c9/0x3b0
do_syscall_64+0x41/0xc0
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fe2eee8d5fa
RSP: 002b:00007fe2efb7ef88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000430 RCX: 00007fe2eee8d5fa
RDX: 0000000020000440 RSI: 00000000200000c0 RDI: 00007fe2efb7efe0
RBP: 00007fe2efb7f020 R08: 00007fe2efb7f020 R09: 0000000001000c00
R10: 0000000001000c00 R11: 0000000000000202 R12: 0000000020000440
R13: 00000000200000c0 R14: 00007fe2efb7efe0 R15: 0000000020000100
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8cf26e10 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xce0
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8cf27610 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xce0
1 lock held by khungtaskd/28:
#0: ffffffff8cf26c40 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by kworker/1:2/1112:
#0:
ffff888012472538
((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7eb/0x13e0
#1: ffffc90005befd20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x835/0x13e0
2 locks held by getty/4747:
#0: ffff88802c3cb098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
#1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x53b/0x1630
3 locks held by kworker/1:4/5160:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7eb/0x13e0
#1: ffffc90004dc7d20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x835/0x13e0
#2: ffffffff8cf2c278 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x458/0x860
3 locks held by kworker/1:11/5408:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7eb/0x13e0
#1: ffffc90005c6fd20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x835/0x13e0
#2: ffffffff8cf2c278 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x389/0x860
2 locks held by kworker/u4:9/8178:
#0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7eb/0x13e0
#1: ffffc90016447d20 (connector_reaper_work){+.+.}-{0:0}, at: process_one_work+0x835/0x13e0
2 locks held by kworker/0:18/9557:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7eb/0x13e0
#1: ffffc90015d57d20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x835/0x13e0
3 locks held by syz-executor.5/21712:
#0: ffff8880798920e0 (&type->s_umount_key#28/1){+.+.}-{3:3}, at: alloc_super+0x217/0x930
#1:
ffff888079892650
(sb_internal){.+.+}-{0:0}, at: ext4_evict_inode+0x53d/0x1230
#2: ffff8880368bdb10 (&ei->xattr_sem){++++}-{3:3}, at: __ext4_mark_inode_dirty+0x531/0x9a0
5 locks held by syz-executor.2/24984:
1 lock held by syz-executor.1/24990:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc6-syzkaller-00273-g837c07cf68fe #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Call Trace:
dump_stack_lvl+0x1b5/0x2a0
nmi_cpu_backtrace+0x47b/0x500
nmi_trigger_cpumask_backtrace+0x1d3/0x430
watchdog+0xf70/0xfb0
kthread+0x270/0x300
ret_from_fork+0x1f/0x30
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5160 Comm: kworker/1:4 Not tainted 6.2.0-rc6-syzkaller-00273-g837c07cf68fe #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Workqueue: events_long defense_work_handler
RIP: 0010:check_preemption_disabled+0x4/0x110
Code: 65 ff ff ff 66 90 f3 0f 1e fa 48 c7 c7 a0 db 39 8b 48 c7 c6 e0 db 39 8b eb 0c 66 2e 0f 1f 84 00 00 00 00 00 66 90 41 57 41 56 <41> 54 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 65
RSP: 0018:ffffc90004dc7860 EFLAGS: 00000046
RAX: 0000000000000002 RBX: 0000000000000002 RCX: 0000000080000202
RDX: 0000000000000000 RSI: ffffffff8aea98a0 RDI: ffffffff8b39dc00
RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff1cadb16
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000246
R13: ffff88801dd30000 R14: 00000000ffffffff R15: ffffffff8cf26bc0
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f577bda8000 CR3: 0000000043d32000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_is_held_type+0xf9/0x180
rcu_read_lock_sched_held+0x8b/0x110
lock_acquire+0x127/0x600
_raw_spin_lock+0x2e/0x40
update_defense_level+0x124/0xd00
defense_work_handler+0x22/0xd0
process_one_work+0x96c/0x13e0
worker_thread+0xa63/0x1210
kthread+0x270/0x300
ret_from_fork+0x1f/0x30