watchdog: BUG: soft lockup - CPU#0 stuck for 245s! [syz.4.695:2946]
Modules linked in:
CPU: 0 PID: 2946 Comm: syz.4.695 Not tainted 6.1.128-syzkaller-00041-g471a10d3af3b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:csd_lock_wait kernel/smp.c:453 [inline]
RIP: 0010:smp_call_function_many_cond+0x854/0x930 kernel/smp.c:998
Code: e6 01 31 ff e8 dd 9b 09 00 41 83 e7 01 49 bf 00 00 00 00 00 fc ff df 75 0a e8 18 98 09 00 e9 2f ff ff ff f3 90 42 0f b6 04 3b <84> c0 75 14 41 f7 06 01 00 00 00 0f 84 12 ff ff ff e8 f6 97 09 00
RSP: 0018:ffffc90000956a00 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 1ffff1103ede7885 RCX: 0000000000080000
RDX: ffffc900036c2000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc90000956b08 R08: ffffffff816bfcb3 R09: ffffed103edc71fb
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: 0000000800000000 R14: ffff8881f6f3c428 R15: dffffc0000000000
FS:  00007f541ebff6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000012c145000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 on_each_cpu_cond_mask+0x40/0x80 kernel/smp.c:1166
 on_each_cpu include/linux/smp.h:71 [inline]
 flush_tlb_kernel_range+0x184/0x210 arch/x86/mm/tlb.c:1058
 pmd_free_pte_page+0x140/0x1a0 arch/x86/mm/pgtable.c:861
 vmap_try_huge_pmd mm/vmalloc.c:154 [inline]
 vmap_pmd_range mm/vmalloc.c:173 [inline]
 vmap_pud_range mm/vmalloc.c:229 [inline]
 vmap_p4d_range mm/vmalloc.c:280 [inline]
 vmap_range_noflush+0x59f/0xa90 mm/vmalloc.c:304
 __vmap_pages_range_noflush+0xa41/0xc30 mm/vmalloc.c:607
 vmap_pages_range_noflush mm/vmalloc.c:627 [inline]
 vmap_pages_range mm/vmalloc.c:647 [inline]
 __vmalloc_area_node mm/vmalloc.c:3108 [inline]
 __vmalloc_node_range+0x1042/0x1560 mm/vmalloc.c:3246
 kvmalloc_node+0x140/0x640 mm/util.c:618
 kvmalloc include/linux/slab.h:716 [inline]
 kvmalloc_array include/linux/slab.h:734 [inline]
 kvcalloc include/linux/slab.h:739 [inline]
 check_btf_line kernel/bpf/verifier.c:11400 [inline]
 check_btf_info kernel/bpf/verifier.c:11596 [inline]
 bpf_check+0x65b3/0x17ed0 kernel/bpf/verifier.c:15547
 bpf_prog_load+0x1304/0x1bf0 kernel/bpf/syscall.c:2626
 __sys_bpf+0x52c/0x7f0 kernel/bpf/syscall.c:5007
 __do_sys_bpf kernel/bpf/syscall.c:5111 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5109 [inline]
 __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5109
 x64_sys_call+0x87f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:322
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f541ed8d169
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f541ebff038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f541efa5fa0 RCX: 00007f541ed8d169
RDX: 000000000000006d RSI: 00004000000000c0 RDI: 0000000000000005
RBP: 00007f541ee0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f541efa5fa0 R15: 00007fffe5d1ece8
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 14 Comm: rcu_preempt Not tainted 6.1.128-syzkaller-00041-g471a10d3af3b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
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+0x117/0x180 arch/x86/kernel/kvm.c:1058
Code: 48 c1 e8 03 42 0f b6 04 20 84 c0 44 8b 74 24 1c 75 53 41 0f b6 45 00 44 38 f0 0f 85 63 ff ff ff 66 90 0f 00 2d da de 50 04 f4 <e9> 54 ff ff ff fa 4c 89 e8 48 c1 e8 03 42 0f b6 04 20 84 c0 44 8b
RSP: 0018:ffffc900000e71a0 EFLAGS: 00000046
RAX: 0000000000000003 RBX: 1ffff9200001ce38 RCX: ffffffff8522c78c
RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff8881f6f27b80
RBP: ffffc900000e7250 R08: dffffc0000000000 R09: ffffed103ede4f71
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8881f6f27b80 R14: 0000000000000003 R15: 1ffff9200001ce3c
FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f541fad56c0 CR3: 00000001095b8000 CR4: 00000000003506a0
DR0: 0000400000000300 DR1: 0000400000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 pv_wait arch/x86/include/asm/paravirt.h:603 [inline]
 pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline]
 __pv_queued_spin_lock_slowpath+0x6de/0xda0 kernel/locking/qspinlock.c:511
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline]
 queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
 do_raw_spin_lock include/linux/spinlock.h:187 [inline]
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:111 [inline]
 _raw_spin_lock_irqsave+0x1a0/0x210 kernel/locking/spinlock.c:162
 lock_timer_base+0x12f/0x270 kernel/time/timer.c:1005
 __mod_timer+0x1c9/0xcf0 kernel/time/timer.c:1078
 add_timer+0x68/0x80 kernel/time/timer.c:1218
 __queue_delayed_work+0x16d/0x1f0 kernel/workqueue.c:1686
 queue_delayed_work_on+0x10f/0x180 kernel/workqueue.c:1711
 queue_delayed_work include/linux/workqueue.h:525 [inline]
 schedule_delayed_monitor_work kernel/rcu/tree.c:3216 [inline]
 kvfree_call_rcu+0x490/0x800 kernel/rcu/tree.c:3472
 trie_delete_elem+0x5a6/0x760 kernel/bpf/lpm_trie.c:545
 bpf_prog_2c29ac5cdc6b1842+0x3a/0x3e
 bpf_dispatcher_nop_func include/linux/bpf.h:987 [inline]
 __bpf_prog_run include/linux/filter.h:603 [inline]
 bpf_prog_run include/linux/filter.h:610 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2282 [inline]
 bpf_trace_run3+0x177/0x2e0 kernel/trace/bpf_trace.c:2322
 __bpf_trace_timer_start+0x2b/0x40 include/trace/events/timer.h:53
 __traceiter_timer_start+0x7f/0xd0 include/trace/events/timer.h:53
 trace_timer_start include/trace/events/timer.h:53 [inline]
 enqueue_timer+0x303/0x480 kernel/time/timer.c:615
 internal_add_timer kernel/time/timer.c:640 [inline]
 __mod_timer+0x8d3/0xcf0 kernel/time/timer.c:1121
 schedule_timeout+0x187/0x380 kernel/time/timer.c:1970
 rcu_gp_fqs_loop+0x2ed/0x10a0 kernel/rcu/tree.c:1706
 rcu_gp_kthread+0xa3/0x3a0 kernel/rcu/tree.c:1905
 kthread+0x26d/0x300 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>