watchdog: BUG: soft lockup - CPU#0 stuck for 222s! [syz.1.9896:1047]
Modules linked in:
CPU: 0 PID: 1047 Comm: syz.1.9896 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:csd_lock_wait kernel/smp.c:440 [inline]
RIP: 0010:smp_call_function_many_cond+0x8c3/0x9f0 kernel/smp.c:969
Code: 84 c0 0f 85 9d 00 00 00 41 8b 1f 89 de 83 e6 01 31 ff e8 90 37 0a 00 83 e3 01 48 8b 5c 24 10 75 07 e8 d1 33 0a 00 eb 42 f3 90 <48> b8 00 00 00 00 00 fc ff df 41 0f b6 44 05 00 84 c0 75 10 41 f7
RSP: 0018:ffffc90000d17380 EFLAGS: 00000293
RAX: ffffffff815e8b45 RBX: ffff8881f7038e80 RCX: ffff88816e2f2780
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90000d17498 R08: dffffc0000000000 R09: ffffed103ee071d3
R10: ffffed103ee071d3 R11: 1ffff1103ee071d2 R12: 1ffff1103ee071d0
R13: 1ffff1103ee2784d R14: 0000000000000001 R15: ffff8881f713c268
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000000660f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 on_each_cpu_cond_mask+0x43/0x80 kernel/smp.c:1134
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:1442 [inline]
 text_poke_bp_batch+0x1cd/0x5a0 arch/x86/kernel/alternative.c:1642
 text_poke_flush arch/x86/kernel/alternative.c:1833 [inline]
 text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:1840
 arch_jump_label_transform_apply+0x15/0x30 arch/x86/kernel/jump_label.c:146
 __jump_label_update+0x37c/0x3a0 kernel/jump_label.c:459
 jump_label_update+0x39b/0x450 kernel/jump_label.c:830
 static_key_disable_cpuslocked+0xc5/0x1a0 kernel/jump_label.c:207
 static_key_disable+0x1a/0x30 kernel/jump_label.c:215
 tracepoint_remove_func kernel/tracepoint.c:417 [inline]
 tracepoint_probe_unregister+0x60e/0x890 kernel/tracepoint.c:551
 bpf_probe_unregister+0x61/0x70 kernel/trace/bpf_trace.c:1952
 bpf_raw_tp_link_release+0x63/0x90 kernel/bpf/syscall.c:2880
 bpf_link_free+0x129/0x370 kernel/bpf/syscall.c:2446
 bpf_link_put kernel/bpf/syscall.c:2472 [inline]
 bpf_link_release+0x15f/0x170 kernel/bpf/syscall.c:2480
 __fput+0x20b/0x8b0 fs/file_table.c:311
 ____fput+0x15/0x20 fs/file_table.c:339
 task_work_run+0x127/0x190 kernel/task_work.c:188
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0xa7e/0x27a0 kernel/exit.c:889
 do_group_exit+0x141/0x310 kernel/exit.c:1003
 get_signal+0x66a/0x1480 kernel/signal.c:2907
 arch_do_signal_or_restart+0xc1/0x10f0 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0xa7/0xe0 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f7d784fefc9
Code: Unable to access opcode bytes at RIP 0x7f7d784fef9f.
RSP: 002b:00007ffd861bfd38 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffdfc RBX: 000000000020a8d3 RCX: 00007f7d784fefc9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f7d78755fac
RBP: 0000000000000032 R08: 0015a3036c200258 R09: 00000007861c002f
R10: 00007ffd861bfe30 R11: 0000000000000246 R12: 00007f7d78755fac
R13: 00007ffd861bfe30 R14: 000000000020a905 R15: 00007ffd861bfe50
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 1024 Comm: syz.9.9887 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:native_halt arch/x86/include/asm/irqflags.h:57 [inline]
RIP: 0010:halt arch/x86/include/asm/irqflags.h:98 [inline]
RIP: 0010:kvm_wait+0xcc/0x140 arch/x86/kernel/kvm.c:912
Code: 20 f6 44 24 21 02 75 24 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 75 48 0f b6 07 40 38 f0 75 a6 66 90 0f 00 2d 45 92 d6 03 f4 <eb> 9a fa 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 75 3f 0f b6 07
RSP: 0018:ffffc900001d05e0 EFLAGS: 00000046
RAX: 0000000000000003 RBX: ffff8881f7127900 RCX: ffffffff814f4299
RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffff8881f7127900
RBP: ffffc900001d0670 R08: dffffc0000000000 R09: ffffed103ee24f21
R10: ffffed103ee24f21 R11: 1ffff1103ee24f20 R12: 1ffff1103ee20001
R13: ffff8881f7138ad4 R14: dffffc0000000000 R15: 1ffff9200003a0bc
FS:  00007f53e812b6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000126695000 CR4: 00000000003506a0
Call Trace:
 <IRQ>
 pv_wait arch/x86/include/asm/paravirt.h:597 [inline]
 pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline]
 __pv_queued_spin_lock_slowpath+0x60f/0x9c0 kernel/locking/qspinlock.c:508
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:585 [inline]
 queued_spin_lock_slowpath+0x47/0x50 arch/x86/include/asm/qspinlock.h:51
 queued_spin_lock include/asm-generic/qspinlock.h:85 [inline]
 do_raw_spin_lock_flags include/linux/spinlock.h:200 [inline]
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:119 [inline]
 _raw_spin_lock_irqsave+0x108/0x110 kernel/locking/spinlock.c:162
 lock_timer_base+0x127/0x270 kernel/time/timer.c:952
 __mod_timer+0x10a/0xb30 kernel/time/timer.c:1025
 add_timer+0x68/0x80 kernel/time/timer.c:1165
 __queue_delayed_work+0x173/0x200 kernel/workqueue.c:1697
 queue_delayed_work_on+0xdb/0x150 kernel/workqueue.c:1722
 queue_delayed_work include/linux/workqueue.h:525 [inline]
 schedule_delayed_monitor_work kernel/rcu/tree.c:3419 [inline]
 kvfree_call_rcu+0x41f/0x7e0 kernel/rcu/tree.c:3675
 trie_delete_elem+0x577/0x710 kernel/bpf/lpm_trie.c:-1
 bpf_prog_5186c38a4019a4cb+0x42/0xbc8
 bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline]
 __bpf_prog_run include/linux/filter.h:621 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline]
 bpf_trace_run3+0x14e/0x1e0 kernel/trace/bpf_trace.c:1916
 __bpf_trace_timer_start+0x2b/0x40 include/trace/events/timer.h:52
 trace_timer_start include/trace/events/timer.h:52 [inline]
 enqueue_timer+0x337/0x480 kernel/time/timer.c:592
 internal_add_timer kernel/time/timer.c:617 [inline]
 add_timer_on+0x303/0x430 kernel/time/timer.c:1205
 add_interrupt_randomness+0x409/0x470 drivers/char/random.c:1019
 handle_irq_event_percpu kernel/irq/handle.c:198 [inline]
 handle_irq_event+0xcc/0x220 kernel/irq/handle.c:213
 handle_edge_irq+0x2a4/0xcd0 kernel/irq/chip.c:837
 generic_handle_irq_desc include/linux/irqdesc.h:158 [inline]
 handle_irq arch/x86/kernel/irq.c:233 [inline]
 __common_interrupt+0x98/0x1b0 arch/x86/kernel/irq.c:252
 common_interrupt+0xb9/0xe0 arch/x86/kernel/irq.c:242
 </IRQ>
 <TASK>
 asm_common_interrupt+0x27/0x40 arch/x86/include/asm/idtentry.h:667
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x49/0x70 kernel/locking/spinlock.c:202
Code: 12 48 89 fb 48 c7 c7 38 3f 6d 86 e8 01 20 fe fc 48 89 df 48 83 3d 8e 1f c4 01 00 74 27 e8 03 12 a6 fc 66 90 fb bf 01 00 00 00 <e8> 52 f0 9d fc 65 8b 05 c3 4d 59 7b 85 c0 74 03 5b 5d c3 e8 e3 56
RSP: 0018:ffffc900011476f0 EFLAGS: 00000246
RAX: 0000000000000001 RBX: ffffea0005462b00 RCX: dffffc0000000000
RDX: ffffc9000341f000 RSI: 000000000007ffff RDI: 0000000000000001
RBP: ffffc900011476f8 R08: dffffc0000000000 R09: ffffed10268e7f28
R10: ffffed10268e7f28 R11: 1ffff110268e7f27 R12: dffffc0000000000
R13: 0000000000000008 R14: ffff888131dd2c40 R15: ffff888131dd2c48
 spin_unlock_irq include/linux/spinlock.h:414 [inline]
 delete_from_page_cache+0xbf/0xf0 mm/filemap.c:276
 truncate_inode_page+0x5d/0x70 mm/truncate.c:222
 shmem_undo_range+0x424/0x13d0 mm/shmem.c:965
 shmem_truncate_range mm/shmem.c:1068 [inline]
 shmem_evict_inode+0x1fd/0x9c0 mm/shmem.c:1150
 evict+0x485/0x870 fs/inode.c:650
 iput_final fs/inode.c:1779 [inline]
 iput+0x635/0x7c0 fs/inode.c:1805
 dentry_unlink_inode+0x32f/0x3e0 fs/dcache.c:380
 __dentry_kill+0x44f/0x650 fs/dcache.c:586
 dentry_kill+0xc0/0x2a0 fs/dcache.c:-1
 dput+0x47/0x90 fs/dcache.c:893
 __fput+0x580/0x8b0 fs/file_table.c:319
 ____fput+0x15/0x20 fs/file_table.c:339
 task_work_run+0x127/0x190 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0xd0/0xe0 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f53e96c1c2a
Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 43 91 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 a3 91 02 00 8b 44 24
RSP: 002b:00007f53e812ae00 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 000000000000000e RCX: 00007f53e96c1c2a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000000d
RBP: 0000000000000019 R08: 0000000000000000 R09: 000000000000552b
R10: 0000000000000000 R11: 0000000000000293 R12: 000000000000000d
R13: 00007f53e812aef0 R14: 00007f53e812b668 R15: 00007f53dfd0b000
 </TASK>