INFO: task syz.3.621:9051 blocked for more than 143 seconds.
Not tainted 6.12.0-rc4-syzkaller-00047-gc2ee9f594da8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.621 state:D stack:25920 pid:9051 tgid:9051 ppid:8890 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x18af/0x4bd0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6782
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6839
rwsem_down_read_slowpath kernel/locking/rwsem.c:1084 [inline]
__down_read_common kernel/locking/rwsem.c:1248 [inline]
__down_read kernel/locking/rwsem.c:1261 [inline]
down_read+0x705/0xa40 kernel/locking/rwsem.c:1526
filemap_invalidate_lock_shared include/linux/fs.h:870 [inline]
page_cache_ra_unbounded+0x135/0x8a0 mm/readahead.c:226
do_sync_mmap_readahead+0x499/0x970
filemap_fault+0x8c5/0x1950 mm/filemap.c:3343
__do_fault+0x135/0x460 mm/memory.c:4871
do_shared_fault mm/memory.c:5350 [inline]
do_fault mm/memory.c:5424 [inline]
do_pte_missing mm/memory.c:3965 [inline]
handle_pte_fault+0x1105/0x6800 mm/memory.c:5755
__handle_mm_fault mm/memory.c:5898 [inline]
handle_mm_fault+0x1106/0x1bb0 mm/memory.c:6066
do_user_addr_fault arch/x86/mm/fault.c:1338 [inline]
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x459/0x8c0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f0ca6851629
RSP: 002b:00007f0ca6c5fb90 EFLAGS: 00010246
RAX: 0000000000000600 RBX: 0000000000000002 RCX: ffffffffffffff3f
RDX: 39de4e94d90ded5e RSI: 00000000200000c0 RDI: 000055558c0543c8
RBP: 00007f0ca6b37a80 R08: 00007f0ca6800000 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000001 R12: 000000000004b78c
R13: 00007f0ca6c5fc90 R14: 0000000000000032 R15: fffffffffffffffe
INFO: task syz.3.621:9052 blocked for more than 143 seconds.
Not tainted 6.12.0-rc4-syzkaller-00047-gc2ee9f594da8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.621 state:D stack:26104 pid:9052 tgid:9051 ppid:8890 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x18af/0x4bd0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6782
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6839
rwsem_down_read_slowpath kernel/locking/rwsem.c:1084 [inline]
__down_read_common kernel/locking/rwsem.c:1248 [inline]
__down_read kernel/locking/rwsem.c:1261 [inline]
down_read+0x705/0xa40 kernel/locking/rwsem.c:1526
filemap_invalidate_lock_shared include/linux/fs.h:870 [inline]
page_cache_ra_unbounded+0x135/0x8a0 mm/readahead.c:226
do_sync_mmap_readahead+0x499/0x970
filemap_fault+0x8c5/0x1950 mm/filemap.c:3343
__do_fault+0x135/0x460 mm/memory.c:4871
do_shared_fault mm/memory.c:5350 [inline]
do_fault mm/memory.c:5424 [inline]
do_pte_missing mm/memory.c:3965 [inline]
handle_pte_fault+0x1105/0x6800 mm/memory.c:5755
__handle_mm_fault mm/memory.c:5898 [inline]
handle_mm_fault+0x1106/0x1bb0 mm/memory.c:6066
do_user_addr_fault arch/x86/mm/fault.c:1389 [inline]
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x2b9/0x8c0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0010:__put_user_4+0x11/0x20 arch/x86/lib/putuser.S:88
Code: 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 89 cb 48 c1 fb 3f 48 09 d9 0f 01 cb <89> 01 31 c9 0f 01 ca c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90
RSP: 0018:ffffc900033dfd78 EFLAGS: 00050206
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00000000200000c0
RDX: 0000000000000001 RSI: ffffffff8c0adcc0 RDI: ffffffff8c6102a0
RBP: ffffc900033dfec8 R08: ffffffff901cfeef R09: 1ffffffff2039fdd
R10: dffffc0000000000 R11: fffffbfff2039fde R12: 0000000000000000
R13: 1ffff9200067bfc8 R14: 1ffff9200067bfb8 R15: ffff888060b1bb80
ppp_unattached_ioctl drivers/net/ppp/ppp_generic.c:1065 [inline]
ppp_ioctl+0x7f9/0x1cd0 drivers/net/ppp/ppp_generic.c:733
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl+0xf9/0x170 fs/ioctl.c:893
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0ca697dff9
RSP: 002b:00007f0ca77e1038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f0ca6b35f80 RCX: 00007f0ca697dff9
RDX: 00000000200000c0 RSI: 00000000c004743e RDI: 0000000000000005
RBP: 00007f0ca69f0296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0ca6b35f80 R15: 00007f0ca6c5fa28
INFO: task syz.3.621:9054 blocked for more than 144 seconds.
Not tainted 6.12.0-rc4-syzkaller-00047-gc2ee9f594da8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.621 state:D stack:22136 pid:9054 tgid:9051 ppid:8890 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x18af/0x4bd0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6782
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6839
rwsem_down_read_slowpath kernel/locking/rwsem.c:1084 [inline]
__down_read_common kernel/locking/rwsem.c:1248 [inline]
__down_read kernel/locking/rwsem.c:1261 [inline]
down_read+0x705/0xa40 kernel/locking/rwsem.c:1526
filemap_invalidate_lock_shared include/linux/fs.h:870 [inline]
page_cache_ra_unbounded+0x135/0x8a0 mm/readahead.c:226
do_sync_mmap_readahead+0x499/0x970
filemap_fault+0x8c5/0x1950 mm/filemap.c:3343
__do_fault+0x135/0x460 mm/memory.c:4871
do_read_fault mm/memory.c:5286 [inline]
do_fault mm/memory.c:5420 [inline]
do_pte_missing mm/memory.c:3965 [inline]
handle_pte_fault+0x2d1c/0x6800 mm/memory.c:5755
__handle_mm_fault mm/memory.c:5898 [inline]
handle_mm_fault+0x1106/0x1bb0 mm/memory.c:6066
do_user_addr_fault arch/x86/mm/fault.c:1389 [inline]
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x2b9/0x8c0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0010:__get_user_8+0x11/0x20 arch/x86/lib/getuser.S:97
Code: ca c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 89 c2 48 c1 fa 3f 48 09 d0 0f 01 cb <48> 8b 10 31 c0 0f 01 ca c3 cc cc cc cc 66 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900033cfed8 EFLAGS: 00050206
RAX: 0000000020000200 RBX: ffffc900033cff10 RCX: ffffc900033cfe03
RDX: 0000000000000000 RSI: ffffffff8c0adcc0 RDI: ffffffff8c6102a0
RBP: ffffc900033cff48 R08: ffffffff901cfeef R09: 1ffffffff2039fdd
R10: dffffc0000000000 R11: fffffbfff2039fde R12: 0000000000000002
R13: 0000000000000000 R14: ffffc900033cff58 R15: 0000000020000200
__do_sys_io_setup fs/aio.c:1388 [inline]
__se_sys_io_setup+0x2d/0x1a0 fs/aio.c:1382
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0ca697dff9
RSP: 002b:00007f0ca77c0038 EFLAGS: 00000246 ORIG_RAX: 00000000000000ce
RAX: ffffffffffffffda RBX: 00007f0ca6b36058 RCX: 00007f0ca697dff9
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000002
RBP: 00007f0ca69f0296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0ca6b36058 R15: 00007f0ca6c5fa28
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e937e20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e937e20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e937e20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6720
3 locks held by kworker/u8:8/2906:
#0: ffff88801ac89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88801ac89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc90009737d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90009737d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffffffff8fcd2e48 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:276
1 lock held by klogd/4675:
#0: ffff8880b873ea98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598
2 locks held by getty/4989:
#0: ffff88802e4b50a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
3 locks held by kworker/u9:2/5231:
#0: ffff888011aa4148 ((wq_completion)hci7){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff888011aa4148 ((wq_completion)hci7){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc90003cf7d00 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90003cf7d00 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffff8880794fcd80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_cmd_sync_work+0x1ec/0x400 net/bluetooth/hci_sync.c:327
3 locks held by kworker/1:5/5284:
#0: ffff8880b873ea98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598
#1: ffff8880b8728948 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x41d/0x7a0 kernel/sched/psi.c:987
#2: ffffffff8ea34468 (vmap_purge_lock){+.+.}-{3:3}, at: drain_vmap_area_work+0x17/0x40 mm/vmalloc.c:2321
3 locks held by kworker/u8:11/6394:
6 locks held by kworker/u8:13/8628:
#0: ffff88801baed948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88801baed948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc90003407d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90003407d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffffffff8fcc6350 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:580
#3: ffff888079fda0e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
#3: ffff888079fda0e8 (&dev->mutex){....}-{3:3}, at: devl_dev_lock net/devlink/devl_internal.h:108 [inline]
#3: ffff888079fda0e8 (&dev->mutex){....}-{3:3}, at: devlink_pernet_pre_exit+0x13b/0x440 net/devlink/core.c:506
#4: ffff888079eec250 (&devlink->lock_key#37){+.+.}-{3:3}, at: devl_lock net/devlink/core.c:276 [inline]
#4: ffff888079eec250 (&devlink->lock_key#37){+.+.}-{3:3}, at: devl_dev_lock net/devlink/devl_internal.h:109 [inline]
#4: ffff888079eec250 (&devlink->lock_key#37){+.+.}-{3:3}, at: devlink_pernet_pre_exit+0x14d/0x440 net/devlink/core.c:506
#5: ffffffff8fcd2e48 (rtnl_mutex){+.+.}-{3:3}, at: fib_seq_sum+0x31/0x290 net/core/fib_notifier.c:46
1 lock held by syz.2.612/8868:
1 lock held by syz.3.621/9051:
#0: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:870 [inline]
#0: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0x135/0x8a0 mm/readahead.c:226
2 locks held by syz.3.621/9052:
#0: ffffffff8f4ba848 (ppp_mutex){+.+.}-{3:3}, at: ppp_ioctl+0x112/0x1cd0 drivers/net/ppp/ppp_generic.c:729
#1: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:870 [inline]
#1: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0x135/0x8a0 mm/readahead.c:226
1 lock held by syz.3.621/9054:
#0: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:870 [inline]
#0: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0x135/0x8a0 mm/readahead.c:226
1 lock held by syz.0.668/9291:
#0: ffffffff8f4ba848 (ppp_mutex){+.+.}-{3:3}, at: ppp_ioctl+0x112/0x1cd0 drivers/net/ppp/ppp_generic.c:729
1 lock held by syz.0.668/9293:
#0: ffffffff8f4ba848 (ppp_mutex){+.+.}-{3:3}, at: ppp_ioctl+0x112/0x1cd0 drivers/net/ppp/ppp_generic.c:729
1 lock held by syz.1.700/9504:
#0: ffffffff8f4ba848 (ppp_mutex){+.+.}-{3:3}, at: ppp_ioctl+0x112/0x1cd0 drivers/net/ppp/ppp_generic.c:729
1 lock held by syz.1.700/9507:
#0: ffffffff8f4ba848 (ppp_mutex){+.+.}-{3:3}, at: ppp_ioctl+0x112/0x1cd0 drivers/net/ppp/ppp_generic.c:729
1 lock held by syz.1.700/9509:
#0: ffffffff8f4ba848 (ppp_mutex){+.+.}-{3:3}, at: ppp_ioctl+0x112/0x1cd0 drivers/net/ppp/ppp_generic.c:729
1 lock held by syz.0.762/9764:
#0: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:870 [inline]
#0: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0x135/0x8a0 mm/readahead.c:226
4 locks held by syz.0.762/9765:
#0: ffff88807d7815f8 (&f->f_pos_lock){+.+.}-{3:3}, at: fdget_pos+0x24e/0x320 fs/file.c:1160
#1: ffff88807b0b8420 (sb_writers#5){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2931 [inline]
#1: ffff88807b0b8420 (sb_writers#5){.+.+}-{0:0}, at: vfs_write+0x224/0xc90 fs/read_write.c:679
#2: ffff88806506b708 (&sb->s_type->i_mutex_key#12){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
#2: ffff88806506b708 (&sb->s_type->i_mutex_key#12){+.+.}-{3:3}, at: shmem_file_write_iter+0x80/0x120 mm/shmem.c:3206
#3: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:870 [inline]
#3: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0x135/0x8a0 mm/readahead.c:226
1 lock held by syz.0.762/9766:
#0: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:870 [inline]
#0: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0x135/0x8a0 mm/readahead.c:226
1 lock held by syz.0.762/9767:
#0: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:870 [inline]
#0: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0x135/0x8a0 mm/readahead.c:226
1 lock held by syz.3.835/10287:
#0: ffffffff8f4ba848 (ppp_mutex){+.+.}-{3:3}, at: ppp_ioctl+0x112/0x1cd0 drivers/net/ppp/ppp_generic.c:729
1 lock held by syz.3.835/10290:
#0: ffffffff8f4ba848 (ppp_mutex){+.+.}-{3:3}, at: ppp_ioctl+0x112/0x1cd0 drivers/net/ppp/ppp_generic.c:729
1 lock held by syz.0.869/10443:
#0: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:870 [inline]
#0: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0x135/0x8a0 mm/readahead.c:226
1 lock held by syz.0.869/10444:
#0: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:870 [inline]
#0: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0x135/0x8a0 mm/readahead.c:226
1 lock held by syz.0.869/10445:
#0: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:870 [inline]
#0: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0x135/0x8a0 mm/readahead.c:226
1 lock held by syz.0.869/10446:
#0: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:870 [inline]
#0: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0x135/0x8a0 mm/readahead.c:226
1 lock held by syz.0.869/10447:
#0: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:870 [inline]
#0: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0x135/0x8a0 mm/readahead.c:226
1 lock held by syz.0.869/10448:
#0: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:870 [inline]
#0: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0x135/0x8a0 mm/readahead.c:226
1 lock held by syz.0.869/10449:
#0: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:870 [inline]
#0: ffff888148e66540 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0x135/0x8a0 mm/readahead.c:226
1 lock held by syz.1.873/10492:
#0: ffffffff8f4ba848 (ppp_mutex){+.+.}-{3:3}, at: ppp_ioctl+0x112/0x1cd0 drivers/net/ppp/ppp_generic.c:729
2 locks held by syz-executor/10862:
#0: ffffffff8fcc6350 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x328/0x570 net/core/net_namespace.c:490
#1: ffffffff8fcd2e48 (rtnl_mutex){+.+.}-{3:3}, at: wg_netns_pre_exit+0x1f/0x1e0 drivers/net/wireguard/device.c:414
2 locks held by syz.3.935/10888:
#0: ffffffff8fcd2e48 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline]
#0: ffffffff8fcd2e48 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3b/0x1b0 drivers/net/tun.c:3517
#1: ffffffff8e93d3b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:329 [inline]
#1: ffffffff8e93d3b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:976
2 locks held by syz.2.939/10902:
#0: ffff888051dfdc08 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
#0: ffff888051dfdc08 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release net/socket.c:657 [inline]
#0: ffff888051dfdc08 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: sock_close+0x90/0x240 net/socket.c:1426
#1: ffffffff8fcd2e48 (rtnl_mutex){+.+.}-{3:3}, at: raw_release+0x1b8/0x8b0 net/can/raw.c:415
2 locks held by syz.2.939/10905:
#0: ffffffff8fcb7968 (vlan_ioctl_mutex){+.+.}-{3:3}, at: sock_ioctl+0x661/0x8e0 net/socket.c:1308
#1: ffffffff8fcd2e48 (rtnl_mutex){+.+.}-{3:3}, at: vlan_ioctl_handler+0x112/0x9d0 net/8021q/vlan.c:553
1 lock held by syz.0.940/10908:
#0: ffffffff8fcd2e48 (rtnl_mutex){+.+.}-{3:3}, at: do_ipv6_setsockopt+0x9e4/0x3630 net/ipv6/ipv6_sockglue.c:566
1 lock held by syz.0.940/10912:
#0: ffffffff8fcd2e48 (rtnl_mutex){+.+.}-{3:3}, at: do_ipv6_setsockopt+0x9e4/0x3630 net/ipv6/ipv6_sockglue.c:566
1 lock held by syz.0.940/10914:
#0: ffffffff8fcd2e48 (rtnl_mutex){+.+.}-{3:3}, at: do_ipv6_setsockopt+0x9e4/0x3630 net/ipv6/ipv6_sockglue.c:566
4 locks held by syz.1.941/10916:
#0: ffff888040580d80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:481 [inline]
#0: ffff888040580d80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x203/0x510 net/bluetooth/hci_core.c:2698
#1: ffff888040580078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x572/0x11a0 net/bluetooth/hci_sync.c:5183
#2: ffffffff8fe3f768 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1972 [inline]
#2: ffffffff8fe3f768 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xa6/0x240 net/bluetooth/hci_conn.c:2592
#3: ffffffff8e93d3b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:297 [inline]
#3: ffffffff8e93d3b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 kernel/rcu/tree_exp.h:976
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-rc4-syzkaller-00047-gc2ee9f594da8 #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+0x241/0x360 lib/dump_stack.c:120
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 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+0xff4/0x1040 kernel/hung_task.c:379
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 4675 Comm: klogd Not tainted 6.12.0-rc4-syzkaller-00047-gc2ee9f594da8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:lock_release+0x15/0xa30 kernel/locking/lockdep.c:5833
Code: 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 <48> 81 ec 00 01 00 00 49 89 f5 48 89 7c 24 18 65 48 8b 04 25 28 00
RSP: 0018:ffffc9000363f0e0 EFLAGS: 00000082
RAX: f9dd44f56d8cef00 RBX: ffffc9000363f160 RCX: f9dd44f56d8cef00
RDX: dffffc0000000000 RSI: ffffffff81f10f0f RDI: ffff88813fffbd50
RBP: ffffc9000363f110 R08: ffffffff942c9807 R09: 1ffffffff2859300
R10: dffffc0000000000 R11: fffffbfff2859301 R12: dffffc0000000000
R13: ffff88813fffbd50 R14: 1ffff920006c7e28 R15: ffffffff81f10f0f
FS: 00007f555ed6c380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ebdc4d4058 CR3: 000000007c31a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
seqcount_lockdep_reader_access+0xfc/0x1e0 include/linux/seqlock.h:73
read_seqbegin include/linux/seqlock.h:757 [inline]
zone_span_seqbegin include/linux/memory_hotplug.h:103 [inline]
page_outside_zone_boundaries mm/page_alloc.c:437 [inline]
bad_range+0x5f/0x270 mm/page_alloc.c:456
__free_one_page+0x182/0x870 mm/page_alloc.c:782
free_pcppages_bulk+0x3d3/0x5e0 mm/page_alloc.c:1201
free_unref_page_commit+0x582/0x1140 mm/page_alloc.c:2613
free_unref_page+0x6a2/0xf20 mm/page_alloc.c:2661
__slab_free+0x31b/0x3d0 mm/slub.c:4490
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329
kasan_slab_alloc include/linux/kasan.h:247 [inline]
slab_post_alloc_hook mm/slub.c:4085 [inline]
slab_alloc_node mm/slub.c:4134 [inline]
__do_kmalloc_node mm/slub.c:4263 [inline]
__kmalloc_node_track_caller_noprof+0x1cd/0x440 mm/slub.c:4283
kmalloc_reserve+0x111/0x2a0 net/core/skbuff.c:609
__alloc_skb+0x1f3/0x440 net/core/skbuff.c:678
alloc_skb include/linux/skbuff.h:1322 [inline]
alloc_skb_with_frags+0xc3/0x820 net/core/skbuff.c:6612
sock_alloc_send_pskb+0x91a/0xa60 net/core/sock.c:2883
unix_dgram_sendmsg+0x6d3/0x1f80 net/unix/af_unix.c:2027
sock_sendmsg_nosec net/socket.c:729 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:744
__sys_sendto+0x39b/0x4f0 net/socket.c:2214
__do_sys_sendto net/socket.c:2226 [inline]
__se_sys_sendto net/socket.c:2222 [inline]
__x64_sys_sendto+0xde/0x100 net/socket.c:2222
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f555eece9b5
Code: 8b 44 24 08 48 83 c4 28 48 98 c3 48 98 c3 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 26 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 7a 48 8b 15 44 c4 0c 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffc8be6d298 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f555eece9b5
RDX: 0000000000000049 RSI: 000055fbdbca6b00 RDI: 0000000000000003
RBP: 000055fbdbc9f910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000013
R13: 00007f555f05c212 R14: 00007ffc8be6d398 R15: 0000000000000000