INFO: task syz.1.108:5802 blocked for more than 143 seconds.
Not tainted 6.12.0-rc3-syzkaller-00399-g9197b73fd7bb #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.108 state:D stack:25824 pid:5802 tgid:5802 ppid:5546 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0xef5/0x5750 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
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
filemap_invalidate_lock_shared include/linux/fs.h:870 [inline]
filemap_fault+0x62e/0x2820 mm/filemap.c:3350
__do_fault+0x10a/0x490 mm/memory.c:4871
do_shared_fault mm/memory.c:5350 [inline]
do_fault mm/memory.c:5424 [inline]
do_pte_missing+0x1a8/0x3e50 mm/memory.c:3965
handle_pte_fault mm/memory.c:5755 [inline]
__handle_mm_fault+0x100a/0x2a10 mm/memory.c:5898
handle_mm_fault+0x3fa/0xaa0 mm/memory.c:6066
do_user_addr_fault+0x60d/0x13f0 arch/x86/mm/fault.c:1338
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f4659851629
RSP: 002b:00007ffdfe89adb0 EFLAGS: 00010246
RAX: 0000000000008400 RBX: 0000000000000002 RCX: fffffffffffffcff
RDX: 1456204a7c21e840 RSI: 0000000020000300 RDI: 0000555567aa43c8
RBP: 00007f4659b37a80 R08: 00007f4659800000 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000029ddd
R13: 00007ffdfe89aeb0 R14: 0000000000000032 R15: fffffffffffffffe
Showing all locks held in the system:
3 locks held by kworker/0:0/8:
#0:
ffff88801b080948
((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
#1: ffffc900000d7d80 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
#2: ffff88807f880240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x1bb/0x26d0 drivers/net/netdevsim/fib.c:1488
1 lock held by khungtaskd/30:
#0: ffffffff8e1b8380 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e1b8380 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e1b8380 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x7f/0x390 kernel/locking/lockdep.c:6720
2 locks held by kworker/u8:2/35:
2 locks held by getty/4981:
#0: ffff88802ea960a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfba/0x1480 drivers/tty/n_tty.c:2211
3 locks held by kworker/0:3/5229:
3 locks held by kworker/u9:9/5243:
#0: ffff888077758948 ((wq_completion)hci4){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
#1: ffffc900040d7d80 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
#2: ffff888030698d80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_cmd_sync_work+0x170/0x410 net/bluetooth/hci_sync.c:327
2 locks held by kworker/0:6/5281:
#0: ffff88801b080948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
#1: ffffc9000437fd80 (free_ipc_work){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
1 lock held by syz-executor/5499:
#0: ffffffff8e1c3c78 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock+0x1a4/0x3b0 kernel/rcu/tree_exp.h:329
1 lock held by syz.0.65/5580:
#0: ffff88802389abc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:860 [inline]
#0: ffff88802389abc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x1da/0x390 block/fops.c:808
2 locks held by syz.1.108/5802:
#0: ffff8880306619b8 (&vma->vm_lock->lock){++++}-{3:3}, at: vma_start_read include/linux/mm.h:704 [inline]
#0: ffff8880306619b8 (&vma->vm_lock->lock){++++}-{3:3}, at: lock_vma_under_rcu+0x13e/0x980 mm/memory.c:6232
#1: ffff88802389abc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:870 [inline]
#1: ffff88802389abc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_fault+0x62e/0x2820 mm/filemap.c:3350
1 lock held by syz.1.181/6187:
#0: ffff88802389abc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:870 [inline]
#0: ffff88802389abc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0x173/0x6c0 mm/readahead.c:226
1 lock held by syz-executor/6196:
#0: ffffffff8e1c3c78 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock+0x1a4/0x3b0 kernel/rcu/tree_exp.h:329
1 lock held by syz-executor/6261:
3 locks held by syz-executor/6264:
#0: ffff88807c3d0d80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x26/0x90 net/bluetooth/hci_core.c:481
#1: ffff88807c3d0078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x346/0x1110 net/bluetooth/hci_sync.c:5183
#2: ffffffff9014abe8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1972 [inline]
#2: ffffffff9014abe8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xc4/0x260 net/bluetooth/hci_conn.c:2592
3 locks held by syz.3.255/6680:
#0: ffff88807eae8d80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x26/0x90 net/bluetooth/hci_core.c:481
#1: ffff88807eae8078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x346/0x1110 net/bluetooth/hci_sync.c:5183
#2: ffffffff9014abe8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1972 [inline]
#2: ffffffff9014abe8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xc4/0x260 net/bluetooth/hci_conn.c:2592
2 locks held by syz-executor/6756:
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-rc3-syzkaller-00399-g9197b73fd7bb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
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:223 [inline]
watchdog+0xf0c/0x1240 kernel/hung_task.c:379
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: 5229 Comm: kworker/0:3 Not tainted 6.12.0-rc3-syzkaller-00399-g9197b73fd7bb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events drain_vmap_area_work
RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:979 [inline]
RIP: 0010:debug_check_no_obj_freed+0x2ec/0x600 lib/debugobjects.c:1019
Code: b9 00 01 00 00 00 00 ad de 49 89 57 08 48 89 c7 48 89 08 4c 89 68 08 e8 12 c8 ff ff 4c 89 f8 48 89 c2 48 c1 ea 03 80 3c 1a 00 <0f> 84 24 ff ff ff 48 89 c7 48 89 44 24 10 e8 c1 7b 59 fd 48 8b 44
RSP: 0018:ffffc90004017860 EFLAGS: 00000046
RAX: ffff8880692d8428 RBX: dffffc0000000000 RCX: ffffffff816b1ecd
RDX: 1ffff1100d25b085 RSI: ffff888067b6c000 RDI: ffff888031a14a98
RBP: ffffc900040179a0 R08: 0000000000000001 R09: fffff52000802efa
R10: 0000000000000003 R11: 0000000000000000 R12: ffff888067b6b000
R13: dead000000000122 R14: 0000000000000008 R15: ffff8880692d8428
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c394de5 CR3: 00000000497fc000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
free_pages_prepare mm/page_alloc.c:1115 [inline]
free_unref_page+0x21a/0xdc0 mm/page_alloc.c:2638
kasan_depopulate_vmalloc_pte+0x63/0x80 mm/kasan/shadow.c:408
apply_to_pte_range mm/memory.c:2817 [inline]
apply_to_pmd_range mm/memory.c:2861 [inline]
apply_to_pud_range mm/memory.c:2897 [inline]
apply_to_p4d_range mm/memory.c:2933 [inline]
__apply_to_page_range+0x5fd/0xd30 mm/memory.c:2967
kasan_release_vmalloc+0xac/0xc0 mm/kasan/shadow.c:525
purge_vmap_node+0x3fb/0x930 mm/vmalloc.c:2204
__purge_vmap_area_lazy+0x9c5/0xc00 mm/vmalloc.c:2288
drain_vmap_area_work+0x27/0x40 mm/vmalloc.c:2322
process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
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