kthread+0x346/0x3d0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [kworker/1:35:6831]
Modules linked in:
CPU: 1 PID: 6831 Comm: kworker/1:35 Tainted: G        W         5.10.237-syzkaller-00309-g7e2543346ff7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: events bpf_prog_free_deferred
RIP: 0010:check_kcov_mode kernel/kcov.c:165 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x30/0x60 kernel/kcov.c:197
Code: 45 08 65 48 8b 0d 70 da 9e 7e 65 8b 15 75 da 9e 7e f7 c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 dc 0a 00 00 00 74 2c <8b> 91 b8 0a 00 00 83 fa 02 75 21 48 8b 91 c0 0a 00 00 48 8b 32 48
RSP: 0018:ffffc90000c37770 EFLAGS: 00000246
RAX: ffffffff81592808 RBX: 0000000000000000 RCX: ffff888116ae0000
RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90000c37770 R08: dffffc0000000000 R09: ffffed103ee0aec9
R10: ffffed103ee0aec9 R11: 1ffff1103ee0aec8 R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000001 R15: 1ffff92000186ef4
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555587a72468 CR3: 0000000131acf000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 csd_lock_wait kernel/smp.c:229 [inline]
 smp_call_function_single+0x208/0x470 kernel/smp.c:517
 smp_call_function_many_cond+0x8f2/0x9e0 kernel/smp.c:653
 smp_call_function_many kernel/smp.c:716 [inline]
 smp_call_function kernel/smp.c:738 [inline]
 on_each_cpu+0xab/0x170 kernel/smp.c:837
 flush_tlb_kernel_range+0x3a/0x1c0 arch/x86/mm/tlb.c:950
 __purge_vmap_area_lazy+0xea/0x1470 mm/vmalloc.c:1355
 _vm_unmap_aliases+0x2f8/0x380 mm/vmalloc.c:1773
 vm_remove_mappings mm/vmalloc.c:2261 [inline]
 __vunmap+0x66e/0x9d0 mm/vmalloc.c:2292
 __vfree mm/vmalloc.c:2350 [inline]
 vfree+0x61/0x90 mm/vmalloc.c:2381
 module_memfree+0x17/0x30 kernel/module.c:2205
 bpf_jit_free_exec+0x15/0x20 kernel/bpf/core.c:870
 bpf_jit_binary_free+0x4c/0x260 kernel/bpf/core.c:919
 bpf_jit_free+0x7f/0x1e0 kernel/bpf/core.c:932
 bpf_prog_free_deferred+0x552/0x5f0 kernel/bpf/core.c:2216
 process_one_work+0x6e1/0xba0 kernel/workqueue.c:2301
 worker_thread+0xa6a/0x13b0 kernel/workqueue.c:2447
 kthread+0x346/0x3d0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 21260 Comm: syz.0.5915 Tainted: G        W         5.10.237-syzkaller-00309-g7e2543346ff7 #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:66 [inline]
RIP: 0010:halt arch/x86/include/asm/irqflags.h:112 [inline]
RIP: 0010:kvm_wait+0xb2/0x120 arch/x86/kernel/kvm.c:921
Code: c1 e8 03 42 0f b6 04 30 84 c0 75 6d 0f b6 07 40 38 f0 75 26 41 f7 c4 00 02 00 00 75 0f 0f 1f 44 00 00 0f 00 2d ff 9d 98 03 f4 <eb> 0e 0f 1f 44 00 00 0f 00 2d f0 9d 98 03 fb f4 4c 89 64 24 18 ff
RSP: 0018:ffffc9000137f5a0 EFLAGS: 00000046
RAX: 0000000000000003 RBX: ffff8881271be920 RCX: ffffffff814b15ba
RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffff8881271be920
RBP: ffffc9000137f650 R08: dffffc0000000000 R09: ffffed1024e37d25
R10: ffffed1024e37d25 R11: 1ffff11024e37d24 R12: 0000000000000046
R13: 1ffff11024e37d24 R14: dffffc0000000000 R15: 1ffff9200026feb8
FS:  00007f19d90ee6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f19d90abf98 CR3: 000000011466f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 pv_wait arch/x86/include/asm/paravirt.h:564 [inline]
 pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline]
 __pv_queued_spin_lock_slowpath+0x714/0xb70 kernel/locking/qspinlock.c:508
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:554 [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:195 [inline]
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:119 [inline]
 _raw_spin_lock_irqsave+0x108/0x110 kernel/locking/spinlock.c:159
 trie_delete_elem+0x95/0x710 kernel/bpf/lpm_trie.c:465
 bpf_prog_8c8ab8634bca3061+0x3a/0xea4
 bpf_dispatcher_nop_func include/linux/bpf.h:669 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2061 [inline]
 bpf_trace_run4+0x15b/0x240 kernel/trace/bpf_trace.c:2100
 __bpf_trace_mm_page_alloc+0xc0/0xf0 include/trace/events/kmem.h:193
 trace_mm_page_alloc include/trace/events/kmem.h:193 [inline]
 __alloc_pages_nodemask+0x5b4/0x5f0 mm/page_alloc.c:5377
 __alloc_pages include/linux/gfp.h:544 [inline]
 __alloc_pages_node include/linux/gfp.h:557 [inline]
 alloc_pages_node include/linux/gfp.h:571 [inline]
 alloc_pages include/linux/gfp.h:590 [inline]
 kmalloc_order+0x4c/0x160 mm/slab_common.c:843
 kmalloc_order_trace+0x16/0x80 mm/slab_common.c:859
 kmalloc_large include/linux/slab.h:481 [inline]
 __kmalloc+0x1ee/0x330 mm/slub.c:4022
 __kmalloc_node include/linux/slab.h:418 [inline]
 kmalloc_node include/linux/slab.h:575 [inline]
 lpm_trie_node_alloc kernel/bpf/lpm_trie.c:288 [inline]
 trie_update_elem+0x19e/0xc70 kernel/bpf/lpm_trie.c:330
 bpf_map_update_value+0x317/0x410 kernel/bpf/syscall.c:219
 map_update_elem+0x4a1/0x5e0 kernel/bpf/syscall.c:1139
 __do_sys_bpf kernel/bpf/syscall.c:4423 [inline]
 __se_sys_bpf+0x398/0x680 kernel/bpf/syscall.c:4391
 __x64_sys_bpf+0x7b/0x90 kernel/bpf/syscall.c:4391
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f19daa85969
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:00007f19d90ee038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f19dacacfa0 RCX: 00007f19daa85969
RDX: 0000000000000020 RSI: 0000200000000740 RDI: 0000000000000002
RBP: 00007f19dab07ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f19dacacfa0 R15: 00007ffcf519bd28