INFO: task syz-executor.5:22782 blocked for more than 143 seconds.
Not tainted 6.2.0-rc3-next-20230110-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:28256 pid:22782 ppid:5124 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
rwsem_down_read_slowpath+0x5a7/0xb20 kernel/locking/rwsem.c:1095
__down_read_common kernel/locking/rwsem.c:1260 [inline]
__down_read kernel/locking/rwsem.c:1269 [inline]
down_read+0xe6/0x450 kernel/locking/rwsem.c:1511
mmap_read_lock include/linux/mmap_lock.h:117 [inline]
do_user_addr_fault+0xa51/0x1210 arch/x86/mm/fault.c:1379
handle_page_fault arch/x86/mm/fault.c:1519 [inline]
exc_page_fault+0x98/0x170 arch/x86/mm/fault.c:1575
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7feaf54276c6
RSP: 002b:00007ffecdac6688 EFLAGS: 00010287
RAX: 0000001b33123000 RBX: 00007feaf55ac018 RCX: 0000001b33120000
RDX: 0000001b33123004 RSI: 0000001b33122e50 RDI: 00000000b7af1b16
RBP: 00000000b7af1b16 R08: 0000001b33520000 R09: 00000000b7af1b1a
R10: 00007ffecdad3090 R11: 000000000002b9ca R12: 00007feaf55a0000
R13: 0000000000000001 R14: 00000000000021cd R15: ffffffff89b6def5
Showing all threads with locks held in the system:
task:rcu_tasks_kthre state:I stack:29040 pid:12 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
rcu_tasks_one_gp+0x484/0xcd0 kernel/rcu/tasks.h:517
rcu_tasks_kthread+0x77/0xa0 kernel/rcu/tasks.h:555
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8c793470 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xcd0 kernel/rcu/tasks.h:510
task:rcu_tasks_trace state:I stack:29208 pid:13 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
rcu_tasks_one_gp+0x484/0xcd0 kernel/rcu/tasks.h:517
rcu_tasks_kthread+0x77/0xa0 kernel/rcu/tasks.h:555
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8c793170 (rcu_tasks_trace.tasks_gp_mutex
){+.+.}-{3:3}
, at: rcu_tasks_one_gp+0x31/0xcd0 kernel/rcu/tasks.h:510
task:kworker/1:2 state:D stack:22656 pid:1731 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
no locks held by kworker/1:2/1731.
task:getty state:S stack:23336 pid:4758 ppid:1 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
schedule_timeout+0x1e1/0x2a0 kernel/time/timer.c:2143
wait_woken+0x197/0x200 kernel/sched/wait.c:463
n_tty_read+0x1055/0x13e0 drivers/tty/n_tty.c:2243
iterate_tty_read drivers/tty/tty_io.c:852 [inline]
tty_read+0x30e/0x5a0 drivers/tty/tty_io.c:927
call_read_iter include/linux/fs.h:1846 [inline]
new_sync_read fs/read_write.c:389 [inline]
vfs_read+0x681/0x930 fs/read_write.c:470
ksys_read+0x12b/0x250 fs/read_write.c:613
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: 0033:0x7f6b752f38fe
RSP: 002b:00007ffd603b0d88 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000559198686910 RCX: 00007f6b752f38fe
RDX: 0000000000000001 RSI: 00007ffd603b0da0 RDI: 0000000000000000
RBP: 0000559198686970 R08: 0000000000000007 R09: 0000559198687cd0
R10: 0000000000000063 R11: 0000000000000246 R12: 00005591986869ac
R13: 00007ffd603b0da0 R14: 0000000000000000 R15: 00005591986869ac
2 locks held by getty/4758:
#0:
ffff88802795f098
(&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177
task:kworker/1:12 state:D stack:23704 pid:5883 ppid:2 flags:0x00004000
Workqueue: rcu_gp wait_rcu_exp_gp
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
schedule_timeout+0x14e/0x2a0 kernel/time/timer.c:2167
synchronize_rcu_expedited_wait_once kernel/rcu/tree_exp.h:572 [inline]
synchronize_rcu_expedited_wait kernel/rcu/tree_exp.h:624 [inline]
rcu_exp_wait_wake+0x2ab/0x1220 kernel/rcu/tree_exp.h:693
process_one_work+0x9bf/0x1750 kernel/workqueue.c:2293
worker_thread+0x669/0x1090 kernel/workqueue.c:2440
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
2 locks held by kworker/1:12/5883:
#0:
ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x86d/0x1750 kernel/workqueue.c:2264
#1: ffffc9000b5b7da8 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1750 kernel/workqueue.c:2268
task:kworker/u4:8 state:R running task stack:24480 pid:6282 ppid:2 flags:0x00004000
Workqueue: 0x0 (events_unbound)
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
worker_thread+0x160/0x1090 kernel/workqueue.c:2461
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
no locks held by kworker/u4:8/6282.
task:syz-executor.5 state:D
stack:28256 pid:22782 ppid:5124 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
rwsem_down_read_slowpath+0x5a7/0xb20 kernel/locking/rwsem.c:1095
__down_read_common kernel/locking/rwsem.c:1260 [inline]
__down_read kernel/locking/rwsem.c:1269 [inline]
down_read+0xe6/0x450 kernel/locking/rwsem.c:1511
mmap_read_lock include/linux/mmap_lock.h:117 [inline]
do_user_addr_fault+0xa51/0x1210 arch/x86/mm/fault.c:1379
handle_page_fault arch/x86/mm/fault.c:1519 [inline]
exc_page_fault+0x98/0x170 arch/x86/mm/fault.c:1575
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7feaf54276c6
RSP: 002b:00007ffecdac6688 EFLAGS: 00010287
RAX: 0000001b33123000 RBX: 00007feaf55ac018 RCX: 0000001b33120000
RDX: 0000001b33123004 RSI: 0000001b33122e50 RDI: 00000000b7af1b16
RBP: 00000000b7af1b16 R08: 0000001b33520000 R09: 00000000b7af1b1a
R10: 00007ffecdad3090 R11: 000000000002b9ca R12: 00007feaf55a0000
R13: 0000000000000001 R14: 00000000000021cd R15: ffffffff89b6def5
1 lock held by syz-executor.5/22782:
#0:
ffff888075ab4098
(
&mm->mmap_lock
){++++}-{3:3}
, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
, at: do_user_addr_fault+0xa51/0x1210 arch/x86/mm/fault.c:1379
task:syz-executor.5 state:R
running task
stack:27224 pid:22784 ppid:5124 flags:0x0000400e
Call Trace:
3 locks held by syz-executor.5/22784:
task:syz-executor.0 state:D stack:26440 pid:24778 ppid:5111 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1b0 kernel/sched/core.c:6695
synchronize_rcu_expedited+0x5e2/0x770 kernel/rcu/tree_exp.h:1007
synchronize_rcu+0x302/0x3b0 kernel/rcu/tree.c:3482
rcu_sync_enter+0x14b/0x2e0 kernel/rcu/sync.c:149
percpu_down_write+0x68/0x390 kernel/locking/percpu-rwsem.c:231
ext4_ind_migrate+0x23b/0x860 fs/ext4/migrate.c:624
ext4_ioctl_setflags fs/ext4/ioctl.c:696 [inline]
ext4_fileattr_set+0x1582/0x1a50 fs/ext4/ioctl.c:1004
vfs_fileattr_set+0x7ff/0xc40 fs/ioctl.c:696
ioctl_fssetxattr fs/ioctl.c:758 [inline]
do_vfs_ioctl+0xf8d/0x15b0 fs/ioctl.c:845
__do_sys_ioctl fs/ioctl.c:868 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__x64_sys_ioctl+0x10c/0x210 fs/ioctl.c:856
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: 0033:0x7fa9cd48c0c9
RSP: 002b:00007fa9cbffe168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fa9cd5abf80 RCX: 00007fa9cd48c0c9
RDX: 0000000020000380 RSI: 0000000040086602 RDI: 0000000000000003
RBP: 00007fa9cd4e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff1e0d742f R14: 00007fa9cbffe300 R15: 0000000000022000
4 locks held by syz-executor.0/24778:
#0: ffff88807ec6c460 (sb_writers#4){.+.+}-{0:0}, at: ioctl_setflags fs/ioctl.c:725 [inline]
#0: ffff88807ec6c460 (sb_writers#4){.+.+}-{0:0}, at: do_vfs_ioctl+0xf52/0x15b0 fs/ioctl.c:839
#1:
ffff888072dede48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
ffff888072dede48 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: vfs_fileattr_set+0x14c/0xc40 fs/ioctl.c:681
#2: ffff88807ec6eb98 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_ind_migrate+0x23b/0x860 fs/ext4/migrate.c:624
#3:
ffffffff8c79f138 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
ffffffff8c79f138 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x400/0x770 kernel/rcu/tree_exp.h:992
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc3-next-20230110-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x32f/0x3c0 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+0xcae/0x1050 kernel/hung_task.c:377
kthread+0x2e8/0x3a0 kernel/kthread.c:376
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: 22784 Comm: syz-executor.5 Not tainted 6.2.0-rc3-next-20230110-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:rq_of kernel/sched/sched.h:1172 [inline]
RIP: 0010:account_entity_enqueue kernel/sched/fair.c:3220 [inline]
RIP: 0010:enqueue_entity+0xa4e/0x1520 kernel/sched/fair.c:4762
Code: b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 d9 0a 00 00 83 bb 8c 03 00 00 05 0f 84 06 f8 ff ff e9 2b f8 ff ff <49> 8d be 70 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1
RSP: 0018:ffffc900001e0c00 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: ffff888078ea5840 RCX: ffffffff8159e087
RDX: 1ffff1100f1d4b18 RSI: 0000000000000008 RDI: ffff888029673408
RBP: 0000000000000009 R08: 0000000000000001 R09: ffff8880787b0147
R10: ffffed100f0f6028 R11: 0000000000000833 R12: 0000000000000000
R13: ffff888078ea58c0 R14: ffff888029673400 R15: 0000000000100000
FS: 00007feaf61d4700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555556a75708 CR3: 00000000266d4000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
enqueue_task_fair+0x18c/0xba0 kernel/sched/fair.c:6207
enqueue_task+0xad/0x330 kernel/sched/core.c:2062
activate_task kernel/sched/core.c:2087 [inline]
ttwu_do_activate+0x15c/0x930 kernel/sched/core.c:3706
ttwu_queue kernel/sched/core.c:3950 [inline]
try_to_wake_up+0xcdc/0x1bf0 kernel/sched/core.c:4272
hrtimer_wakeup+0x47/0x60 kernel/time/hrtimer.c:1939
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x600/0xcf0 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x320/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline]
__sysvec_apic_timer_interrupt+0x180/0x660 arch/x86/kernel/apic/apic.c:1113
sysvec_apic_timer_interrupt+0x92/0xc0 arch/x86/kernel/apic/apic.c:1107
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:console_trylock_spinning kernel/printk/printk.c:2008 [inline]
RIP: 0010:vprintk_emit+0x3fe/0x600 kernel/printk/printk.c:2356
Code: 32 1b 00 48 85 db 0f 85 da 01 00 00 e8 db 35 1b 00 31 ff 4c 89 f6 e8 a1 32 1b 00 4d 85 f6 74 06 e8 c7 35 1b 00 fb f3 0f 1e fa bd 35 1b 00 45 31 c9 41 b8 01 00 00 00 31 c9 68 fa 87 66 81 ba
RSP: 0018:ffffc9000528f7c0 EFLAGS: 00000246
RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc9000d88d000
RDX: 0000000000040000 RSI: ffffffff816687f9 RDI: 0000000000000007
RBP: ffffc9000528f7f8 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000200 R11: 0000000000000000 R12: 0000000000000021
R13: ffff888017610000 R14: 0000000000000200 R15: ffffc9000528f848
vprintk+0x84/0xa0 kernel/printk/printk_safe.c:50
_printk+0xbe/0xf1 kernel/printk/printk.c:2378
mt_dump_range64 lib/maple_tree.c:6735 [inline]
mt_dump_node+0x1db/0x927 lib/maple_tree.c:6829
mt_dump_arange64 lib/maple_tree.c:6792 [inline]
mt_dump_node+0x851/0x927 lib/maple_tree.c:6832
mt_dump.cold+0xf2/0x115 lib/maple_tree.c:6849
mt_find.cold+0x48/0x90 lib/maple_tree.c:6473
find_vma+0x10c/0x1b0 mm/mmap.c:1850
walk_page_range+0x2b1/0x4a0 mm/pagewalk.c:463
mlock_vma_pages_range mm/mlock.c:386 [inline]
mlock_fixup+0x650/0x810 mm/mlock.c:462
apply_vma_lock_flags+0x23d/0x350 mm/mlock.c:506
do_mlock+0x25a/0x6d0 mm/mlock.c:601
__do_sys_mlock mm/mlock.c:615 [inline]
__se_sys_mlock mm/mlock.c:613 [inline]
__x64_sys_mlock+0x59/0x80 mm/mlock.c:613
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: 0033:0x7feaf548c0c9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007feaf61d4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000095
RAX: ffffffffffffffda RBX: 00007feaf55abf80 RCX: 00007feaf548c0c9
RDX: 0000000000000000 RSI: 0000000000004000 RDI: 0000000020ffc000
RBP: 00007feaf54e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffecdac66bf R14: 00007feaf61d4300 R15: 0000000000022000