INFO: task syz-executor.4:9013 blocked for more than 143 seconds.
Not tainted 6.2.0-syzkaller-13115-gee3f96b16468 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:28096 pid:9013 ppid:5109 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5304 [inline]
__schedule+0xcce/0x5b20 kernel/sched/core.c:6622
schedule+0xde/0x1a0 kernel/sched/core.c:6698
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6757
rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline]
__down_read_common+0x7df/0xf30 kernel/locking/rwsem.c:1250
mmap_read_lock include/linux/mmap_lock.h:117 [inline]
exit_mm kernel/exit.c:539 [inline]
do_exit+0x8b8/0x2a40 kernel/exit.c:856
do_group_exit+0xd4/0x2a0 kernel/exit.c:1019
get_signal+0x2315/0x25b0 kernel/signal.c:2859
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:296
do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f80a108c142
RSP: 002b:00007ffeb0f20f78 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: fffffffffffffffc RBX: 0000000000020022 RCX: 00007f80a108c142
RDX: 0000000000000000 RSI: 0000000000021000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 00000000ffffffff R09: 0000000000000000
R10: 0000000000020022 R11: 0000000000000246 R12: 00007ffeb0f21180
R13: 00007f80a03ff700 R14: 0000000000000000 R15: 0000000000022000
INFO: task syz-executor.4:9021 blocked for more than 143 seconds.
Not tainted 6.2.0-syzkaller-13115-gee3f96b16468 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:24912 pid:9021 ppid:5109 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5304 [inline]
__schedule+0xcce/0x5b20 kernel/sched/core.c:6622
schedule+0xde/0x1a0 kernel/sched/core.c:6698
io_schedule+0xbe/0x130 kernel/sched/core.c:8884
folio_wait_bit_common+0x394/0x9b0 mm/filemap.c:1301
folio_lock include/linux/pagemap.h:952 [inline]
write_cache_pages+0x5e5/0xe70 mm/page-writeback.c:2440
mpage_writepages+0xc6/0x170 fs/mpage.c:653
udf_writepages+0x86/0xe0 fs/udf/inode.c:211
do_writepages+0x1a8/0x640 mm/page-writeback.c:2551
filemap_fdatawrite_wbc mm/filemap.c:390 [inline]
filemap_fdatawrite_wbc+0x147/0x1b0 mm/filemap.c:380
__filemap_fdatawrite_range+0xb8/0xf0 mm/filemap.c:423
file_write_and_wait_range+0xce/0x140 mm/filemap.c:781
__generic_file_fsync+0x78/0x1f0 fs/libfs.c:1132
generic_file_fsync+0x77/0x120 fs/libfs.c:1173
vfs_fsync_range+0x13e/0x230 fs/sync.c:188
generic_write_sync include/linux/fs.h:2452 [inline]
udf_file_write_iter+0x363/0x740 fs/udf/file.c:126
call_write_iter include/linux/fs.h:1851 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x9ed/0xe10 fs/read_write.c:584
ksys_write+0x12b/0x250 fs/read_write.c:637
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: 0033:0x7f80a108c0f9
RSP: 002b:00007f80a1e22168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f80a11abf80 RCX: 00007f80a108c0f9
RDX: 000000000208e24b RSI: 0000000020000080 RDI: 0000000000000004
RBP: 00007f80a10e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffeb0f20fef R14: 00007f80a1e22300 R15: 0000000000022000
INFO: task syz-executor.4:9039 blocked for more than 143 seconds.
Not tainted 6.2.0-syzkaller-13115-gee3f96b16468 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:28176 pid:9039 ppid:5109 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5304 [inline]
__schedule+0xcce/0x5b20 kernel/sched/core.c:6622
schedule+0xde/0x1a0 kernel/sched/core.c:6698
io_schedule+0xbe/0x130 kernel/sched/core.c:8884
folio_wait_bit_common+0x394/0x9b0 mm/filemap.c:1301
folio_wait_writeback+0x47/0x3b0 mm/page-writeback.c:3127
migrate_folio_unmap mm/migrate.c:1192 [inline]
migrate_pages_batch+0x1281/0x3660 mm/migrate.c:1685
migrate_pages+0x1b73/0x2300 mm/migrate.c:1973
do_mbind mm/mempolicy.c:1338 [inline]
kernel_mbind+0x4df/0x7c0 mm/mempolicy.c:1485
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: 0033:0x7f80a108c0f9
RSP: 002b:00007f80a1e01168 EFLAGS: 00000246 ORIG_RAX: 00000000000000ed
RAX: ffffffffffffffda RBX: 00007f80a11ac050 RCX: 00007f80a108c0f9
RDX: 0000000000000000 RSI: 0000000000800000 RDI: 0000000020001000
RBP: 00007f80a10e7ae9 R08: 0000000000000000 R09: 0000000000000002
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffeb0f20fef R14: 00007f80a1e01300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8c794e70 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:510
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8c794b70 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:510
1 lock held by khungtaskd/28:
#0: ffffffff8c7959c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6495
3 locks held by kworker/u4:5/1017:
#0: ffff8881401ed938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8881401ed938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff8881401ed938 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff8881401ed938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline]
#0: ffff8881401ed938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline]
#0: ffff8881401ed938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x86d/0x1820 kernel/workqueue.c:2361
#1: ffffc900052dfda8 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1820 kernel/workqueue.c:2365
#2: ffff888146c8c0e0 (&type->s_umount_key#70){++++}-{3:3}, at: trylock_super+0x21/0x110 fs/super.c:414
2 locks held by getty/4759:
#0: ffff888027f8b098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177
1 lock held by syz-executor.4/9013:
#0: ffff8880693e9418 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff8880693e9418 (&mm->mmap_lock){++++}-{3:3}, at: exit_mm kernel/exit.c:539 [inline]
#0: ffff8880693e9418 (&mm->mmap_lock){++++}-{3:3}, at: do_exit+0x8b8/0x2a40 kernel/exit.c:856
2 locks held by syz-executor.4/9021:
#0: ffff888075832368 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe7/0x100 fs/file.c:1046
#1: ffff888146c8c460 (sb_writers#19){.+.+}-{0:0}, at: ksys_write+0x12b/0x250 fs/read_write.c:637
1 lock held by syz-executor.4/9039:
#0: ffff8880693e9418 (&mm->mmap_lock){++++}-{3:3}, at: mmap_write_lock include/linux/mmap_lock.h:71 [inline]
#0: ffff8880693e9418 (&mm->mmap_lock){++++}-{3:3}, at: do_mbind mm/mempolicy.c:1312 [inline]
#0: ffff8880693e9418 (&mm->mmap_lock){++++}-{3:3}, at: kernel_mbind+0x318/0x7c0 mm/mempolicy.c:1485
1 lock held by syz-executor.2/10738:
#0: ffff88807de96078 (&hiddev->existancelock){+.+.}-{3:3}, at: hiddev_ioctl+0xee/0x14b0 drivers/hid/usbhid/hiddev.c:610
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-syzkaller-13115-gee3f96b16468 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106
nmi_cpu_backtrace+0x316/0x3e0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x33f/0x460 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xe94/0x11e0 kernel/hung_task.c:379
kthread+0x2e8/0x3a0 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: 4422 Comm: syslogd Not tainted 6.2.0-syzkaller-13115-gee3f96b16468 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023
RIP: 0010:kvm_clock_read+0xf/0x30 arch/x86/kernel/kvmclock.c:79
Code: 89 e6 48 89 ef 65 c6 05 f0 d4 eb 75 00 5d 41 5c e9 d6 0d 00 00 66 0f 1f 44 00 00 65 ff 05 c1 d4 eb 75 65 48 8b 3d 79 a0 ea 75 4c 00 00 00 65 ff 0d ad d4 eb 75 74 01 c3 e8 2d a6 e8 f6 c3 66
RSP: 0018:ffffc9000314f6a0 EFLAGS: 00000086
RAX: 0000000000000001 RBX: ffff8880b983c298 RCX: 0000000000000001
RDX: 1ffff1100fcf5896 RSI: ffff8880b983c298 RDI: ffffffff9010b000
RBP: ffff88807e7aba80 R08: 0000000000000001 R09: 0000000000000003
R10: fffff52000629eca R11: 0000000000000000 R12: ffffed100fcf5896
R13: ffff88807e7ac4b8 R14: ffff88807e7ac4b8 R15: 0000000000000000
FS: 00007f5e04a69800(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056172a748680 CR3: 0000000028fd6000 CR4: 0000000000350ef0
Call Trace:
kvm_sched_clock_read+0x9/0x20 arch/x86/kernel/kvmclock.c:91
__lock_pin_lock kernel/locking/lockdep.c:5439 [inline]
lock_pin_lock+0x1a7/0x2c0 kernel/locking/lockdep.c:5733
rq_pin_lock kernel/sched/sched.h:1576 [inline]
rq_lock kernel/sched/sched.h:1654 [inline]
__schedule+0x2c3/0x5b20 kernel/sched/core.c:6539
schedule+0xde/0x1a0 kernel/sched/core.c:6698
schedule_timeout+0x276/0x2b0 kernel/time/timer.c:2143
__skb_wait_for_more_packets+0x3f8/0x5e0 net/core/datagram.c:120
__unix_dgram_recvmsg+0x206/0xb90 net/unix/af_unix.c:2459
unix_dgram_recvmsg+0xc4/0xf0 net/unix/af_unix.c:2543
sock_recvmsg_nosec net/socket.c:1015 [inline]
sock_recvmsg+0xe2/0x160 net/socket.c:1036
sock_read_iter+0x2bd/0x3b0 net/socket.c:1114
call_read_iter include/linux/fs.h:1845 [inline]
new_sync_read fs/read_write.c:389 [inline]
vfs_read+0x7fa/0x930 fs/read_write.c:470
ksys_read+0x1ec/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: 0033:0x7f5e04bf58fe
Code: c0 e9 e6 fe ff ff 50 48 8d 3d 0e c7 09 00 e8 c9 cf 01 00 66 0f 1f 84 00 00 00 00 00 64 8b 04 25 18 00 00 00 85 c0 75 14 0f 05 <48> 3d 00 f0 ff ff 77 5a c3 66 0f 1f 84 00 00 00 00 00 48 83 ec 28
RSP: 002b:00007ffe0873b518 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5e04bf58fe
RDX: 00000000000000ff RSI: 00005644e4788950 RDI: 0000000000000000
RBP: 00005644e4788910 R08: 00007f5e04c85040 R09: 00007f5e04c850c0
R10: 00007f5e04c84fc0 R11: 0000000000000246 R12: 00005644e47889a4
R13: 00005644e4788950 R14: 0000000000000000 R15: 0000000000000000