ip6_tunnel: ip6gre1 xmit: Local address not yet configured!
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P11454/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=116733, q=1050 ncpus=1)
task:syz.3.1407 state:R running task stack:24296 pid:11454 tgid:11436 ppid:9915 task_flags:0x440040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5583 [inline]
__schedule+0x17dd/0x5820 kernel/sched/core.c:7382
preempt_schedule_notrace+0x56/0x90 kernel/sched/core.c:7633
preempt_schedule_notrace_thunk+0x16/0x30 arch/x86/entry/thunk.S:13
rcu_is_watching+0x81/0xb0 kernel/rcu/tree.c:754
rcu_read_lock_held_common kernel/rcu/update.c:109 [inline]
rcu_read_lock_held+0x15/0x50 kernel/rcu/update.c:349
xa_head include/linux/xarray.h:1210 [inline]
xas_start+0x295/0x770 lib/xarray.c:191
xas_load+0x2c/0x5a0 lib/xarray.c:239
xas_find+0x157/0x980 lib/xarray.c:1409
find_get_entry mm/filemap.c:2085 [inline]
filemap_get_folios_tag+0x219/0x720 mm/filemap.c:2353
mpage_map_and_submit_buffers fs/ext4/inode.c:2314 [inline]
mpage_map_and_submit_extent fs/ext4/inode.c:2515 [inline]
ext4_do_writepages+0x1b57/0x4770 fs/ext4/inode.c:2938
ext4_writepages+0x1fe/0x4e0 fs/ext4/inode.c:3032
do_writepages+0x338/0x560 mm/page-writeback.c:2560
filemap_writeback mm/filemap.c:387 [inline]
filemap_fdatawrite_range mm/filemap.c:412 [inline]
file_write_and_wait_range+0x36e/0x440 mm/filemap.c:786
ext4_sync_file+0x252/0xa40 fs/ext4/fsync.c:145
generic_write_sync include/linux/fs.h:2691 [inline]
ext4_buffered_write_iter+0x2d0/0x380 fs/ext4/file.c:360
ext4_file_write_iter+0xae4/0x1cd0 fs/ext4/file.c:-1
iter_file_splice_write+0xa31/0x1240 fs/splice.c:736
do_splice_from fs/splice.c:936 [inline]
direct_splice_actor+0x101/0x160 fs/splice.c:1187
splice_direct_to_actor+0x57b/0xcb0 fs/splice.c:1096
do_splice_direct_actor fs/splice.c:1230 [inline]
do_splice_direct+0x195/0x290 fs/splice.c:1256
vfs_copy_file_range+0xaf0/0x1340 fs/read_write.c:1633
__do_sys_copy_file_range fs/read_write.c:1682 [inline]
__se_sys_copy_file_range+0x2fb/0x480 fs/read_write.c:1649
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbb8939f559
RSP: 002b:00007fbb8a279028 EFLAGS: 00000246 ORIG_RAX: 0000000000000146
RAX: ffffffffffffffda RBX: 00007fbb89626090 RCX: 00007fbb8939f559
RDX: 0000000000000006 RSI: 0000000000000000 RDI: 0000000000000006
RBP: 00007fbb89436b20 R08: 0000000000000863 R09: 0000000000000000
R10: 000020000001a500 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbb89626128 R14: 00007fbb89626090 R15: 00007ffddfe41018
rcu: rcu_preempt kthread starved for 10480 jiffies! g116733 f0x0 RCU_GP_WAIT_FQS(5) ->state=R ->cpu=0
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:27496 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5583 [inline]
__schedule+0x17dd/0x5820 kernel/sched/core.c:7382
preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7662
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:543 [inline]
irqentry_exit+0x14f/0x9b0 kernel/entry/common.c:154
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:schedule_timeout+0x155/0x2c0 kernel/time/sleep_timeout.c:100
Code: 31 d2 48 c7 c1 c0 b2 0f 8c 49 c7 c0 c0 76 a4 9b e8 80 18 c6 f5 48 89 5c 24 30 4c 89 ef e8 33 2c c6 f5 e8 fe 8e fe ff 4c 89 ef 76 3d c6 f5 4c 89 ef e8 7e 19 c6 f5 43 80 3c 3e 00 74 0c 48 c7
RSP: 0018:ffffc90000157ae0 EFLAGS: 00000246
RAX: 0000000000208040 RBX: 0000000100007984 RCX: ffffffff9ba03501
RDX: 0000000000000001 RSI: ffffffff8c6df460 RDI: ffffc90000157b00
RBP: ffffc90000157bd0 R08: ffffffff917a7ebf R09: 1ffffffff22f4fd7
R10: dffffc0000000000 R11: fffffbfff22f4fd8 R12: 1ffff9200002af5c
R13: ffffc90000157b00 R14: 1ffffffff1f41e50 R15: dffffc0000000000
rcu_gp_fqs_loop+0x30c/0x1230 kernel/rcu/tree.c:2122
rcu_gp_kthread+0x9c/0x340 kernel/rcu/tree.c:2330
kthread+0x38b/0x480 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 9917 Comm: kworker/u9:0 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/05/2026
Workqueue: hci1 hci_conn_timeout
RIP: 0010:finish_task_switch+0x413/0xc60 kernel/sched/core.c:5434
Code: 04 00 00 41 c7 84 24 20 0e 00 00 00 00 00 00 0f 1f 44 00 00 49 83 c4 48 4c 89 e7 e8 d7 62 57 0a e8 92 41 3a 00 fb 4c 8b 65 c8 <49> 8d bc 24 18 17 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0
RSP: 0018:ffffc90003fef6e0 EFLAGS: 00000206
RAX: 000000000007cfdd RBX: ffff8880b843cbe0 RCX: 8000000000000001
RDX: 0000000000000006 RSI: ffffffff8e46d5f0 RDI: ffffffff8c6df480
RBP: ffffc90003fef730 R08: ffffffff917a7ebf R09: 1ffffffff22f4fd7
R10: dffffc0000000000 R11: fffffbfff22f4fd8 R12: ffff88803037ddc0
R13: ffff8880b843cba8 R14: dffffc0000000000 R15: 1ffff1101708797c
FS: 0000000000000000(0000) GS:ffff888123ab1000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f745e06d5d1 CR3: 000000002bd0c000 CR4: 0000000000350ef0
Call Trace:
context_switch kernel/sched/core.c:5586 [inline]
__schedule+0x17e5/0x5820 kernel/sched/core.c:7382
preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7662
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:543 [inline]
irqentry_exit+0x14f/0x9b0 kernel/entry/common.c:154
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:constant_test_bit arch/x86/include/asm/bitops.h:202 [inline]
RIP: 0010:arch_test_bit arch/x86/include/asm/bitops.h:232 [inline]
RIP: 0010:_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:142 [inline]
RIP: 0010:hci_acl_cancel_create_conn_sync net/bluetooth/hci_sync.c:7379 [inline]
RIP: 0010:hci_cancel_connect_sync+0x277/0xbf0 net/bluetooth/hci_sync.c:7448
Code: 89 3c 24 31 f6 e8 89 bc fd 00 4d 8d a5 60 09 00 00 4c 89 e7 be 08 00 00 00 e8 35 8d 4a f7 4c 89 e0 48 c1 e8 03 42 80 3c 30 00 <74> 08 4c 89 e7 e8 af 8a 4a f7 49 8b 1c 24 48 89 de 48 81 e6 00 00
RSP: 0018:ffffc90003fefa50 EFLAGS: 00000246
RAX: 1ffff1100f25112c RBX: 0000000000000001 RCX: ffffffff8aee529b
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888079288960
RBP: dffffc0000000000 R08: ffff888079288967 R09: 1ffff1100f25112c
R10: dffffc0000000000 R11: ffffed100f25112d R12: ffff888079288960
R13: ffff888079288000 R14: dffffc0000000000 R15: ffff88805d020000
hci_abort_conn+0xcc/0x260 net/bluetooth/hci_conn.c:3243
process_one_work kernel/workqueue.c:3396 [inline]
process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
kthread+0x38b/0x480 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245