Warning: Permanently added '10.128.10.20' (ED25519) to the list of known hosts.
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[   55.921128][    C1] 
[   55.923486][    C1] ======================================================
[   55.930485][    C1] WARNING: possible circular locking dependency detected
[   55.937485][    C1] 5.15.180-syzkaller #0 Not tainted
[   55.942665][    C1] ------------------------------------------------------
[   55.949663][    C1] swapper/1/0 is trying to acquire lock:
[   55.955292][    C1] ffff88807386f1b8 (&trie->lock){..-.}-{2:2}, at: trie_delete_elem+0x90/0x690
[   55.964180][    C1] 
[   55.964180][    C1] but task is already holding lock:
[   55.971527][    C1] ffff8880b8f28098 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x120/0x260
[   55.980467][    C1] 
[   55.980467][    C1] which lock already depends on the new lock.
[   55.980467][    C1] 
[   55.990848][    C1] 
[   55.990848][    C1] the existing dependency chain (in reverse order) is:
[   55.999839][    C1] 
[   55.999839][    C1] -> #2 (&base->lock){-.-.}-{2:2}:
[   56.007132][    C1]        lock_acquire+0x1db/0x4f0
[   56.012142][    C1]        _raw_spin_lock_irqsave+0xd1/0x120
[   56.017935][    C1]        lock_timer_base+0x120/0x260
[   56.023206][    C1]        __mod_timer+0x1d6/0xeb0
[   56.028126][    C1]        queue_delayed_work_on+0x156/0x250
[   56.033911][    C1]        kvfree_call_rcu+0x50e/0x8a0
[   56.039178][    C1]        rtnl_register_internal+0x443/0x530
[   56.045058][    C1]        rtnl_register+0x32/0x70
[   56.049977][    C1]        ip_rt_init+0x2e6/0x3a0
[   56.054896][    C1]        ip_init+0xa/0x20
[   56.059208][    C1]        inet_init+0x27c/0x390
[   56.063983][    C1]        do_one_initcall+0x22b/0x7a0
[   56.069253][    C1]        do_initcall_level+0x157/0x210
[   56.074706][    C1]        do_initcalls+0x49/0x90
[   56.079541][    C1]        kernel_init_freeable+0x425/0x5c0
[   56.085245][    C1]        kernel_init+0x19/0x290
[   56.090077][    C1]        ret_from_fork+0x1f/0x30
[   56.094992][    C1] 
[   56.094992][    C1] -> #1 (krc.lock){....}-{2:2}:
[   56.102006][    C1]        lock_acquire+0x1db/0x4f0
[   56.107025][    C1]        _raw_spin_lock+0x2a/0x40
[   56.112033][    C1]        kvfree_call_rcu+0x1b5/0x8a0
[   56.117299][    C1]        trie_update_elem+0x8ad/0xca0
[   56.122650][    C1]        bpf_map_update_value+0x5d7/0x6c0
[   56.128353][    C1]        generic_map_update_batch+0x54d/0x8b0
[   56.134402][    C1]        bpf_map_do_batch+0x4d0/0x620
[   56.139759][    C1]        __sys_bpf+0x55c/0x670
[   56.144507][    C1]        __x64_sys_bpf+0x78/0x90
[   56.149447][    C1]        do_syscall_64+0x3b/0x80
[   56.154375][    C1]        entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   56.160777][    C1] 
[   56.160777][    C1] -> #0 (&trie->lock){..-.}-{2:2}:
[   56.168054][    C1]        validate_chain+0x1649/0x5930
[   56.173406][    C1]        __lock_acquire+0x1295/0x1ff0
[   56.178764][    C1]        lock_acquire+0x1db/0x4f0
[   56.183863][    C1]        _raw_spin_lock_irqsave+0xd1/0x120
[   56.189654][    C1]        trie_delete_elem+0x90/0x690
[   56.194932][    C1]        bpf_prog_2c29ac5cdc6b1842+0x3a/0x9ac
[   56.200994][    C1]        bpf_trace_run3+0x1d1/0x380
[   56.206174][    C1]        enqueue_timer+0x3ae/0x540
[   56.211265][    C1]        __mod_timer+0xa60/0xeb0
[   56.216181][    C1]        lapb_t1timer_expiry+0x779/0xae0
[   56.221798][    C1]        call_timer_fn+0x16d/0x560
[   56.226896][    C1]        __run_timers+0x67c/0x890
[   56.231903][    C1]        run_timer_softirq+0x63/0xf0
[   56.237169][    C1]        handle_softirqs+0x3a7/0x930
[   56.242435][    C1]        __irq_exit_rcu+0x157/0x240
[   56.247613][    C1]        irq_exit_rcu+0x5/0x20
[   56.252353][    C1]        sysvec_apic_timer_interrupt+0xa0/0xc0
[   56.258487][    C1]        asm_sysvec_apic_timer_interrupt+0x16/0x20
[   56.264989][    C1]        default_idle+0xb/0x10
[   56.269731][    C1]        default_idle_call+0x81/0xc0
[   56.275029][    C1]        do_idle+0x271/0x670
[   56.279612][    C1]        cpu_startup_entry+0x14/0x20
[   56.284899][    C1]        start_secondary+0x371/0x500
[   56.290165][    C1]        secondary_startup_64_no_verify+0xb1/0xbb
[   56.296564][    C1] 
[   56.296564][    C1] other info that might help us debug this:
[   56.296564][    C1] 
[   56.306782][    C1] Chain exists of:
[   56.306782][    C1]   &trie->lock --> krc.lock --> &base->lock
[   56.306782][    C1] 
[   56.318492][    C1]  Possible unsafe locking scenario:
[   56.318492][    C1] 
[   56.325943][    C1]        CPU0                    CPU1
[   56.331307][    C1]        ----                    ----
[   56.336648][    C1]   lock(&base->lock);
[   56.340720][    C1]                                lock(krc.lock);
[   56.347211][    C1]                                lock(&base->lock);
[   56.353774][    C1]   lock(&trie->lock);
[   56.357820][    C1] 
[   56.357820][    C1]  *** DEADLOCK ***
[   56.357820][    C1] 
[   56.365958][    C1] 4 locks held by swapper/1/0:
[   56.370705][    C1]  #0: ffffc90000dd0be0 ((&lapb->t1timer)){+.-.}-{0:0}, at: call_timer_fn+0xbe/0x560
[   56.380172][    C1]  #1: ffff88802c4ee9c0 (&lapb->lock){+.-.}-{2:2}, at: lapb_t1timer_expiry+0x2f/0xae0
[   56.389738][    C1]  #2: ffff8880b8f28098 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x120/0x260
[   56.399048][    C1]  #3: ffffffff8cb1f4e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30
[   56.408356][    C1] 
[   56.408356][    C1] stack backtrace:
[   56.414242][    C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.15.180-syzkaller #0
[   56.422034][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[   56.432074][    C1] Call Trace:
[   56.435341][    C1]  <IRQ>
[   56.438195][    C1]  dump_stack_lvl+0x1e3/0x2d0
[   56.442873][    C1]  ? io_uring_drop_tctx_refs+0x1a0/0x1a0
[   56.448500][    C1]  ? print_circular_bug+0x12b/0x1a0
[   56.453735][    C1]  check_noncircular+0x2f8/0x3b0
[   56.458745][    C1]  ? reacquire_held_locks+0x660/0x660
[   56.464106][    C1]  ? add_chain_block+0x850/0x850
[   56.469029][    C1]  ? lockdep_lock+0x11f/0x2a0
[   56.473698][    C1]  validate_chain+0x1649/0x5930
[   56.478553][    C1]  ? stack_trace_save+0x1c0/0x1c0
[   56.483571][    C1]  ? reacquire_held_locks+0x660/0x660
[   56.488926][    C1]  ? validate_chain+0x112/0x5930
[   56.493851][    C1]  ? sg_next+0x80/0xa0
[   56.497907][    C1]  ? lockdep_lock+0x11f/0x2a0
[   56.502572][    C1]  ? lockdep_unlock+0x166/0x300
[   56.507407][    C1]  ? lockdep_lock+0x2a0/0x2a0
[   56.512072][    C1]  ? mark_lock+0x98/0x340
[   56.516382][    C1]  __lock_acquire+0x1295/0x1ff0
[   56.521223][    C1]  lock_acquire+0x1db/0x4f0
[   56.525744][    C1]  ? trie_delete_elem+0x90/0x690
[   56.530669][    C1]  ? mark_lock+0x98/0x340
[   56.534978][    C1]  ? read_lock_is_recursive+0x10/0x10
[   56.540431][    C1]  ? __lock_acquire+0x1295/0x1ff0
[   56.545446][    C1]  _raw_spin_lock_irqsave+0xd1/0x120
[   56.550716][    C1]  ? trie_delete_elem+0x90/0x690
[   56.555634][    C1]  ? _raw_spin_lock+0x40/0x40
[   56.560292][    C1]  ? read_lock_is_recursive+0x10/0x10
[   56.565647][    C1]  trie_delete_elem+0x90/0x690
[   56.570390][    C1]  ? __cant_sleep+0x270/0x270
[   56.575046][    C1]  ? do_raw_spin_lock+0x14a/0x370
[   56.580049][    C1]  ? __lock_acquire+0x1ff0/0x1ff0
[   56.585156][    C1]  bpf_prog_2c29ac5cdc6b1842+0x3a/0x9ac
[   56.590681][    C1]  bpf_trace_run3+0x1d1/0x380
[   56.595339][    C1]  ? bpf_trace_run2+0x340/0x340
[   56.600165][    C1]  ? _raw_spin_unlock_irqrestore+0xd9/0x130
[   56.606041][    C1]  ? _raw_spin_lock_irqsave+0xdd/0x120
[   56.611483][    C1]  enqueue_timer+0x3ae/0x540
[   56.616060][    C1]  __mod_timer+0xa60/0xeb0
[   56.620459][    C1]  ? mod_timer_pending+0x20/0x20
[   56.625382][    C1]  ? del_timer+0x183/0x310
[   56.629781][    C1]  ? lock_timer_base+0x260/0x260
[   56.634700][    C1]  ? lapb_data_transmit+0x85/0xa0
[   56.639706][    C1]  ? lapb_transmit_buffer+0x178/0x1e0
[   56.645079][    C1]  lapb_t1timer_expiry+0x779/0xae0
[   56.650193][    C1]  call_timer_fn+0x16d/0x560
[   56.654769][    C1]  ? lapb_start_t1timer+0x100/0x100
[   56.659950][    C1]  ? __run_timers+0x890/0x890
[   56.664609][    C1]  ? do_raw_spin_unlock+0x137/0x8b0
[   56.669798][    C1]  ? _raw_spin_unlock_irq+0x1f/0x40
[   56.674974][    C1]  ? lapb_start_t1timer+0x100/0x100
[   56.680151][    C1]  ? lockdep_hardirqs_on+0x94/0x130
[   56.685329][    C1]  ? lapb_start_t1timer+0x100/0x100
[   56.690506][    C1]  __run_timers+0x67c/0x890
[   56.694993][    C1]  ? detach_timer+0x2f0/0x2f0
[   56.699661][    C1]  ? lockdep_hardirqs_on_prepare+0x438/0x7a0
[   56.705646][    C1]  ? ktime_get_real_ts64+0x460/0x460
[   56.710929][    C1]  run_timer_softirq+0x63/0xf0
[   56.715682][    C1]  handle_softirqs+0x3a7/0x930
[   56.720432][    C1]  ? __irq_exit_rcu+0x157/0x240
[   56.725266][    C1]  ? do_softirq+0x240/0x240
[   56.729749][    C1]  ? irqtime_account_irq+0xd0/0x1e0
[   56.734932][    C1]  __irq_exit_rcu+0x157/0x240
[   56.739592][    C1]  ? irq_exit_rcu+0x20/0x20
[   56.744089][    C1]  irq_exit_rcu+0x5/0x20
[   56.748341][    C1]  sysvec_apic_timer_interrupt+0xa0/0xc0
[   56.753968][    C1]  </IRQ>
[   56.756883][    C1]  <TASK>
[   56.759796][    C1]  asm_sysvec_apic_timer_interrupt+0x16/0x20
[   56.765771][    C1] RIP: 0010:default_idle+0xb/0x10
[   56.770807][    C1] Code: 07 80 c1 03 38 c1 7c b5 4c 89 e7 e8 af 84 81 f7 eb ab e8 88 80 f6 ff 00 00 cc cc 00 00 cc cc 66 90 0f 00 2d 07 1b 5d 00 fb f4 <c3> 0f 1f 40 00 41 57 41 56 53 49 be 00 00 00 00 00 fc ff df 65 48
[   56.790423][    C1] RSP: 0018:ffffc90000d67d28 EFLAGS: 000002c6
[   56.796486][    C1] RAX: e8d9d32bc7fa1800 RBX: ffff88813ff68000 RCX: 00000000000056d6
[   56.804449][    C1] RDX: 0000000000000001 RSI: ffffffff8aab18e0 RDI: ffffffff8af9e940
[   56.812404][    C1] RBP: ffffc90000d67e80 R08: dffffc0000000000 R09: ffffed10171e765a
[   56.820362][    C1] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff920001acfbe
[   56.828320][    C1] R13: 1ffff11027fed000 R14: 0000000000000001 R15: dffffc0000000000
[   56.836287][    C1]  default_idle_call+0x81/0xc0
[   56.841043][    C1]  do_idle+0x271/0x670
[   56.845102][    C1]  ? idle_inject_timer_fn+0x60/0x60
[   56.850287][    C1]  ? _raw_spin_unlock_irqrestore+0xd9/0x130
[   56.856167][    C1]  ? complete+0x56/0xa0
[   56.860307][    C1]  cpu_startup_entry+0x14/0x20
[   56.865056][    C1]  start_secondary+0x371/0x500
[   56.869803][    C1]  ? arch_scale_freq_tick+0x120/0x120
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[   56.875158][    C1]  secondary_startup_64_no_verify+0xb1/0xbb
[   56.881041][    C1]  </TASK>
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