INFO: task syz.8.6019:28120 blocked for more than 143 seconds.
Not tainted 6.13.0-rc2-syzkaller-00036-g231825b2e1ff #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.8.6019 state:D stack:27344 pid:28120 tgid:28119 ppid:21054 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0xe58/0x5ad0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
rwsem_down_read_slowpath+0x61e/0xb20 kernel/locking/rwsem.c:1084
__down_read_common kernel/locking/rwsem.c:1248 [inline]
__down_read kernel/locking/rwsem.c:1261 [inline]
down_read+0x124/0x330 kernel/locking/rwsem.c:1526
i_mmap_lock_read include/linux/fs.h:529 [inline]
rmap_walk_file+0x54b/0x690 mm/rmap.c:2694
rmap_walk+0x7a/0xd0 mm/rmap.c:2726
remove_migration_ptes+0x11e/0x1b0 mm/migrate.c:373
unmap_and_move_huge_page mm/migrate.c:1526 [inline]
migrate_hugetlbs mm/migrate.c:1648 [inline]
migrate_pages+0xa3d/0x21f0 mm/migrate.c:2046
migrate_to_node mm/mempolicy.c:1099 [inline]
do_migrate_pages+0x486/0x740 mm/mempolicy.c:1198
kernel_migrate_pages+0x5b2/0x750 mm/mempolicy.c:1713
__do_sys_migrate_pages mm/mempolicy.c:1731 [inline]
__se_sys_migrate_pages mm/mempolicy.c:1727 [inline]
__x64_sys_migrate_pages+0x96/0x100 mm/mempolicy.c:1727
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f73fb17ff19
RSP: 002b:00007f73fc00e058 EFLAGS: 00000246 ORIG_RAX: 0000000000000100
RAX: ffffffffffffffda RBX: 00007f73fb345fa0 RCX: 00007f73fb17ff19
RDX: 00000000200002c0 RSI: 0000000000000003 RDI: 0000000000000000
RBP: 00007f73fb1f3cc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000280 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f73fb345fa0 R15: 00007ffc46670568
INFO: task syz.8.6019:28134 blocked for more than 144 seconds.
Not tainted 6.13.0-rc2-syzkaller-00036-g231825b2e1ff #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.8.6019 state:D stack:28512 pid:28134 tgid:28119 ppid:21054 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0xe58/0x5ad0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6848
io_schedule+0xbf/0x130 kernel/sched/core.c:7681
folio_wait_bit_common+0x3d8/0x9b0 mm/filemap.c:1308
__folio_lock mm/filemap.c:1646 [inline]
folio_lock include/linux/pagemap.h:1151 [inline]
folio_lock include/linux/pagemap.h:1147 [inline]
__filemap_get_folio+0x6a4/0xaf0 mm/filemap.c:1899
filemap_lock_folio include/linux/pagemap.h:788 [inline]
filemap_lock_hugetlb_folio include/linux/hugetlb.h:789 [inline]
hugetlbfs_zero_partial_page+0xaf/0x520 fs/hugetlbfs/inode.c:661
hugetlbfs_punch_hole fs/hugetlbfs/inode.c:715 [inline]
hugetlbfs_fallocate+0xe12/0x11d0 fs/hugetlbfs/inode.c:748
vfs_fallocate+0x459/0xf90 fs/open.c:327
madvise_remove mm/madvise.c:1020 [inline]
madvise_vma_behavior+0x1b6d/0x1da0 mm/madvise.c:1255
madvise_walk_vmas+0x1cf/0x2c0 mm/madvise.c:1497
do_madvise+0x30e/0x770 mm/madvise.c:1684
__do_sys_madvise mm/madvise.c:1700 [inline]
__se_sys_madvise mm/madvise.c:1698 [inline]
__x64_sys_madvise+0xa9/0x110 mm/madvise.c:1698
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f73fb17ff19
RSP: 002b:00007f73fbfed058 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007f73fb346080 RCX: 00007f73fb17ff19
RDX: 0000000000000009 RSI: 0000000000600002 RDI: 0000000020000000
RBP: 00007f73fb1f3cc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f73fb346080 R15: 00007ffc46670568
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e1bb500 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e1bb500 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e1bb500 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x7f/0x390 kernel/locking/lockdep.c:6744
2 locks held by getty/5580:
#0: ffff888036f180a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc9000331b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0xfba/0x1480 drivers/tty/n_tty.c:2211
3 locks held by kworker/1:5/5866:
3 locks held by kworker/0:12/17702:
#0: ffff88801b078948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x1293/0x1ba0 kernel/workqueue.c:3204
#1: ffffc9000e037d80 ((work_completion)(&rfkill_global_led_trigger_work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
#2: ffffffff8e1bb500 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#2: ffffffff8e1bb500 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#2: ffffffff8e1bb500 (rcu_read_lock){....}-{1:3}, at: led_trigger_event drivers/leds/led-triggers.c:405 [inline]
#2: ffffffff8e1bb500 (rcu_read_lock){....}-{1:3}, at: led_trigger_event+0x6c/0x270 drivers/leds/led-triggers.c:395
5 locks held by kworker/0:14/17704:
#0: ffff888021ab2148 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x1293/0x1ba0 kernel/workqueue.c:3204
#1: ffffc9000e077d80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
#2: ffff888144fff190 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline]
#2: ffff888144fff190 (&dev->mutex){....}-{4:4}, at: hub_event+0x1c1/0x4e10 drivers/usb/core/hub.c:5849
#3: ffff88805c9b0190 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline]
#3: ffff88805c9b0190 (&dev->mutex){....}-{4:4}, at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1005
#4: ffff888021aa5160 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline]
#4: ffff888021aa5160 (&dev->mutex){....}-{4:4}, at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1005
2 locks held by kworker/u8:10/21541:
1 lock held by syz.8.6019/28120:
#0: ffff88803685e278 (&hugetlbfs_i_mmap_rwsem_key){++++}-{4:4}, at: i_mmap_lock_read include/linux/fs.h:529 [inline]
#0: ffff88803685e278 (&hugetlbfs_i_mmap_rwsem_key){++++}-{4:4}, at: rmap_walk_file+0x54b/0x690 mm/rmap.c:2694
3 locks held by syz.8.6019/28134:
#0: ffff88801b764420 (sb_writers#17){.+.+}-{0:0}, at: madvise_remove mm/madvise.c:1020 [inline]
#0: ffff88801b764420 (sb_writers#17){.+.+}-{0:0}, at: madvise_vma_behavior+0x1b6d/0x1da0 mm/madvise.c:1255
#1: ffff88803685dfa8 (&sb->s_type->i_mutex_key#22){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff88803685dfa8 (&sb->s_type->i_mutex_key#22){+.+.}-{4:4}, at: hugetlbfs_punch_hole fs/hugetlbfs/inode.c:690 [inline]
#1: ffff88803685dfa8 (&sb->s_type->i_mutex_key#22){+.+.}-{4:4}, at: hugetlbfs_fallocate+0xc27/0x11d0 fs/hugetlbfs/inode.c:748
#2: ffff88803685e278 (&hugetlbfs_i_mmap_rwsem_key){++++}-{4:4}, at: i_mmap_lock_write include/linux/fs.h:509 [inline]
#2: ffff88803685e278 (&hugetlbfs_i_mmap_rwsem_key){++++}-{4:4}, at: hugetlbfs_punch_hole fs/hugetlbfs/inode.c:698 [inline]
#2: ffff88803685e278 (&hugetlbfs_i_mmap_rwsem_key){++++}-{4:4}, at: hugetlbfs_fallocate+0xc94/0x11d0 fs/hugetlbfs/inode.c:748
1 lock held by syz-executor/28279:
#0: ffffffff8feda988 (rtnl_mutex){+.+.}-{4:4}, at: tun_detach drivers/net/tun.c:698 [inline]
#0: ffffffff8feda988 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x38/0x230 drivers/net/tun.c:3517
1 lock held by syz-executor/28734:
#0: ffffffff8feda988 (rtnl_mutex){+.+.}-{4:4}, at: tun_detach drivers/net/tun.c:698 [inline]
#0: ffffffff8feda988 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x38/0x230 drivers/net/tun.c:3517
2 locks held by kworker/u8:3/29311:
#0: ffff8880b863ebd8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:606 [inline]
#0: ffff8880b863ebd8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x7e/0x130 kernel/sched/core.c:591
#1: ffffc900033a7d80 ((work_completion)(&(&bat_priv->nc.work)->work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
2 locks held by syz.9.6418/29593:
#0: ffffffff8feda988 (rtnl_mutex){+.+.}-{4:4}, at: tun_detach drivers/net/tun.c:698 [inline]
#0: ffffffff8feda988 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x38/0x230 drivers/net/tun.c:3517
#1: ffffffff8e1c6e38 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock+0x1a4/0x3b0 kernel/rcu/tree_exp.h:329
1 lock held by syz.2.6420/29608:
#0: ffffffff8feda988 (rtnl_mutex){+.+.}-{4:4}, at: tun_detach drivers/net/tun.c:698 [inline]
#0: ffffffff8feda988 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x38/0x230 drivers/net/tun.c:3517
1 lock held by syz.4.6423/29606:
#0: ffffffff8e1c6e38 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock+0x1a4/0x3b0 kernel/rcu/tree_exp.h:329
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc2-syzkaller-00036-g231825b2e1ff #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:234 [inline]
watchdog+0xf14/0x1240 kernel/hung_task.c:397
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 29606 Comm: syz.4.6423 Not tainted 6.13.0-rc2-syzkaller-00036-g231825b2e1ff #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:1091 [inline]
RIP: 0010:debug_check_no_obj_freed+0x220/0x600 lib/debugobjects.c:1129
Code: 89 64 24 38 49 bd 22 01 00 00 00 00 ad de 48 c1 ea 03 4d 89 fc 80 3c 1a 00 0f 85 dc 00 00 00 48 8d 78 18 41 83 c6 01 4c 8b 38 <48> 89 fa 48 c1 ea 03 80 3c 1a 00 0f 85 fa 02 00 00 48 8b 50 18 4c
RSP: 0018:ffffc9000ceff8b0 EFLAGS: 00000002
RAX: ffff888030d577e0 RBX: dffffc0000000000 RCX: ffffffff8177255d
RDX: 1ffff110061aaefc RSI: 0000000000000004 RDI: ffff888030d577f8
RBP: ffffc9000ceff9f0 R08: 0000000000000001 R09: fffff520019dff04
R10: 0000000000000003 R11: 0000000000000000 R12: ffffc900164dd000
R13: dead000000000122 R14: 000000000000000d R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31a1fffc CR3: 000000000df7e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
remove_vm_area+0x1ae/0x3f0 mm/vmalloc.c:3241
vfree+0x90/0x890 mm/vmalloc.c:3364
kcov_put kernel/kcov.c:439 [inline]
kcov_put+0x2a/0x40 kernel/kcov.c:435
kcov_close+0xd/0x20 kernel/kcov.c:535
__fput+0x3f8/0xb60 fs/file_table.c:450
task_work_run+0x14e/0x250 kernel/task_work.c:239
exit_task_work include/linux/task_work.h:43 [inline]
do_exit+0xadd/0x2d70 kernel/exit.c:938
do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
get_signal+0x24ed/0x26c0 kernel/signal.c:3017
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6c3537ff19
Code: Unable to access opcode bytes at 0x7f6c3537feef.
RSP: 002b:00007f6c36113058 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: 0000000000000044 RBX: 00007f6c35545fa0 RCX: 00007f6c3537ff19
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003
RBP: 00007f6c353f3cc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6c35545fa0 R15: 00007ffc58ab4268