watchdog: BUG: soft lockup - CPU#0 stuck for 226s! [kworker/u4:4:451]
Modules linked in:
CPU: 0 PID: 451 Comm: kworker/u4:4 Not tainted 5.15.152-syzkaller-00143-g70e1a731d986 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Workqueue: netns cleanup_net
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x60 kernel/kcov.c:196
Code: 00 00 55 48 89 e5 53 48 89 fb e8 13 00 00 00 48 8b 3d a4 1d b9 05 48 89 de e8 44 77 41 00 5b 5d c3 cc 55 48 89 e5 48 8b 45 08 <65> 48 8b 0d 00 2b 92 7e 65 8b 15 01 2b 92 7e f7 c2 00 01 ff 00 74
RSP: 0018:ffffc90000e17890 EFLAGS: 00000202
RAX: ffffffff81658c04 RBX: 1ffff920001c2f1d RCX: ffff8881102dcf00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90000e17890 R08: ffffffff81658bd6 R09: ffffed103ee271d9
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000000000000001 R14: ffffc90000e178e8 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002029b000 CR3: 00000001169a8000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 csd_lock_wait kernel/smp.c:440 [inline]
 smp_call_function_single+0x294/0x510 kernel/smp.c:758
 rcu_barrier+0x218/0x400 kernel/rcu/tree.c:4125
 netdev_run_todo+0x14b/0x9f0 net/core/dev.c:10625
 rtnl_unlock+0xe/0x10 net/core/rtnetlink.c:112
 default_device_exit_batch+0x38f/0x3f0 net/core/dev.c:11639
 ops_exit_list net/core/net_namespace.c:174 [inline]
 cleanup_net+0x6ce/0xc00 net/core/net_namespace.c:596
 process_one_work+0x6bb/0xc10 kernel/workqueue.c:2325
 worker_thread+0xad5/0x12a0 kernel/workqueue.c:2472
 kthread+0x421/0x510 kernel/kthread.c:337
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 60 Comm: kworker/1:2 Not tainted 5.15.152-syzkaller-00143-g70e1a731d986 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Workqueue: events bpf_map_free_deferred
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:912
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 5a 02 13 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:ffffc900001d08c0 EFLAGS: 00000046
RAX: 0000000000000003 RBX: 1ffff9200003a11c RCX: 00000000874fe200
RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffffffff874fe280
RBP: ffffc900001d0970 R08: dffffc0000000000 R09: 0000000000000000
R10: fffffbfff0e9fc50 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffffffff874fe280 R14: 0000000000000003 R15: 1ffff9200003a120
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020017000 CR3: 0000000111fcf000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <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+0x6bc/0xc40 kernel/locking/qspinlock.c:508
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:585 [inline]
 queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
 queued_spin_lock include/asm-generic/qspinlock.h:85 [inline]
 do_raw_spin_lock_flags include/linux/spinlock.h:199 [inline]
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:119 [inline]
 _raw_spin_lock_irqsave+0x1a0/0x210 kernel/locking/spinlock.c:162
 free_percpu+0x9e/0x1090 mm/percpu.c:2279
 snmp6_free_dev net/ipv6/addrconf_core.c:249 [inline]
 in6_dev_finish_destroy_rcu+0x84/0xa0 net/ipv6/addrconf_core.c:256
 rcu_do_batch+0x57a/0xc10 kernel/rcu/tree.c:2523
 rcu_core+0x517/0x1020 kernel/rcu/tree.c:2763
 rcu_core_si+0x9/0x10 kernel/rcu/tree.c:2776
 __do_softirq+0x26d/0x5bf kernel/softirq.c:565
 do_softirq+0xf6/0x150 kernel/softirq.c:452
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0x75/0x80 kernel/softirq.c:379
 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:176 [inline]
 _raw_spin_unlock_bh+0x51/0x60 kernel/locking/spinlock.c:210
 __sock_map_delete net/core/sock_map.c:426 [inline]
 sock_map_delete_elem+0xcb/0x130 net/core/sock_map.c:448
 bpf_prog_8a405b5ced52e191+0x42/0xff0
 bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline]
 __bpf_prog_run include/linux/filter.h:625 [inline]
 bpf_prog_run include/linux/filter.h:632 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline]
 bpf_trace_run3+0x11e/0x250 kernel/trace/bpf_trace.c:1918
 __bpf_trace_percpu_free_percpu+0x2b/0x40 include/trace/events/percpu.h:43
 __traceiter_percpu_free_percpu+0x7f/0xd0 include/trace/events/percpu.h:43
 trace_percpu_free_percpu include/trace/events/percpu.h:43 [inline]
 free_percpu+0xd12/0x1090 mm/percpu.c:2306
 htab_free_elems kernel/bpf/hashtab.c:282 [inline]
 prealloc_destroy+0x156/0x2c0 kernel/bpf/hashtab.c:376
 htab_map_free+0x68/0x5d0 kernel/bpf/hashtab.c:1470
 bpf_map_free_deferred+0x10d/0x1e0 kernel/bpf/syscall.c:481
 process_one_work+0x6bb/0xc10 kernel/workqueue.c:2325
 worker_thread+0xad5/0x12a0 kernel/workqueue.c:2472
 kthread+0x421/0x510 kernel/kthread.c:337
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </TASK>