RBP: 000000000000000b R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000000 R12: 0000000000000073
R13: 00007fb3f264cec0 R14: 9999999999999999 R15: 0000000000000000
 </TASK>
watchdog: BUG: soft lockup - CPU#0 stuck for 246s! [syz.4.2180:6349]
Modules linked in:
CPU: 0 PID: 6349 Comm: syz.4.2180 Not tainted 5.15.151-syzkaller-00415-gdb06c48ab67e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:trylock_clear_pending kernel/locking/qspinlock_paravirt.h:121 [inline]
RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:435 [inline]
RIP: 0010:__pv_queued_spin_lock_slowpath+0x5be/0xc40 kernel/locking/qspinlock.c:508
Code: dc c6 03 00 48 8b 44 24 10 0f b6 04 10 84 c0 0f 85 48 01 00 00 48 8b 44 24 08 c6 00 01 bb 00 80 ff ff eb 06 f3 90 ff c3 74 5e <41> 0f b6 44 15 00 84 c0 75 36 41 80 3f 00 75 ea 4c 89 ff be 02 00
RSP: 0000:ffffc90000e97580 EFLAGS: 00000292
RAX: 0000000000000000 RBX: 00000000ffffb3b0 RCX: ffffffff8154fbdf
RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff888122376928
RBP: ffffc90000e97670 R08: dffffc0000000000 R09: ffffed102446ed26
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f7038ad4
R13: 1ffff1102446ed25 R14: 1ffff1103ee00001 R15: ffff888122376928
FS:  00007fb3f264d6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000000000b CR3: 0000000119d93000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 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 include/linux/spinlock.h:187 [inline]
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:136 [inline]
 _raw_spin_lock_bh+0x139/0x1b0 kernel/locking/spinlock.c:178
 __sock_map_delete net/core/sock_map.c:416 [inline]
 sock_map_delete_elem+0x99/0x130 net/core/sock_map.c:448
 bpf_prog_8a405b5ced52e191+0x42/0xc1c
 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_run2+0xec/0x210 kernel/trace/bpf_trace.c:1917
 __bpf_trace_kfree+0x6f/0x90 include/trace/events/kmem.h:118
 trace_kfree include/trace/events/kmem.h:118 [inline]
 kfree+0x1f3/0x220 mm/slub.c:4569
 sk_psock_free_link include/linux/skmsg.h:420 [inline]
 sock_map_del_link net/core/sock_map.c:160 [inline]
 sock_map_unref+0x352/0x4d0 net/core/sock_map.c:182
 __sock_map_delete net/core/sock_map.c:422 [inline]
 sock_map_delete_elem+0xc1/0x130 net/core/sock_map.c:448
 bpf_prog_8a405b5ced52e191+0x42/0xc1c
 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_run2+0xec/0x210 kernel/trace/bpf_trace.c:1917
 __bpf_trace_kfree+0x6f/0x90 include/trace/events/kmem.h:118
 trace_kfree include/trace/events/kmem.h:118 [inline]
 kfree+0x1f3/0x220 mm/slub.c:4569
 security_cred_free+0xb3/0xf0 security/security.c:1720
 put_cred_rcu+0x66/0x320 kernel/cred.c:117
 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
 invoke_softirq kernel/softirq.c:425 [inline]
 __irq_exit_rcu+0x50/0xf0 kernel/softirq.c:648
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:660
 sysvec_apic_timer_interrupt+0x49/0xc0 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0033:0x7fb3f33f3b50
Code: 83 c0 16 83 e0 f7 74 12 50 48 8d 3d fa 5e 06 00 e8 d5 93 f8 ff 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 <83> ff 21 74 0b c3 66 2e 0f 1f 84 00 00 00 00 00 55 53 48 89 f3 48
RSP: 002b:00007fb3f264bc78 EFLAGS: 00000283
RAX: 0000000000000000 RBX: 00007fb3f264cd40 RCX: 00007fb3f351b160
RDX: 00007fb3f264bc80 RSI: 00007fb3f264bdb0 RDI: 0000000000000021
RBP: 000000000000000b R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000000 R12: 0000000000000073
R13: 00007fb3f264cec0 R14: 9999999999999999 R15: 0000000000000000
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 6363 Comm: syz.3.2186 Not tainted 5.15.151-syzkaller-00415-gdb06c48ab67e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:irqtime_account_irq+0x40/0x3c0 kernel/sched/cputime.c:55
Code: fe e8 44 c4 74 03 89 c3 83 f8 08 0f 83 25 02 00 00 49 bf 00 00 00 00 00 fc ff df 48 8d 1c dd 10 d8 02 86 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 41 08 64 00 80 3d 8a 1e db 05 01
RSP: 0018:ffffc900001d0f88 EFLAGS: 00000806
RAX: 1ffffffff0c05b03 RBX: ffffffff8602d818 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: ffffffff85830e00 RDI: ffffffff85830dc0
RBP: ffffc900001d0fc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: ffffc900001d0ff8 R12: 0000000000000000
R13: 0000000000010000 R14: ffff888112778000 R15: dffffc0000000000
FS:  00007f8999add6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2dd1eff8 CR3: 0000000120be4000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 account_hardirq_enter include/linux/vtime.h:153 [inline]
 irq_enter_rcu+0x65/0x80 kernel/softirq.c:613
 sysvec_apic_timer_interrupt+0x8d/0xc0 arch/x86/kernel/apic/apic.c:1096
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:pv_wait_node kernel/locking/qspinlock_paravirt.h:302 [inline]
RIP: 0010:__pv_queued_spin_lock_slowpath+0x37e/0xc40 kernel/locking/qspinlock.c:473
Code: c9 f0 0f b0 0b 41 bc 00 80 00 00 48 ba 00 00 00 00 00 fc ff df 41 0f b6 04 16 84 c0 0f 85 ac 00 00 00 48 8b 44 24 08 83 38 00 <0f> 85 15 01 00 00 45 84 e4 74 09 f3 90 41 ff cc 75 d9 eb 1b 48 8b
RSP: 0018:ffffc90001f8ef80 EFLAGS: 00000246
RAX: ffff8881f7138ac8 RBX: ffff8881f7138ad4 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8881f7138ad4
RBP: ffffc90001f8f070 R08: dffffc0000000000 R09: ffffed103ee2715b
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000003a06
R13: 1ffff1102446ed25 R14: 1ffff1103ee27159 R15: ffff888122376928
 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 include/linux/spinlock.h:187 [inline]
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:136 [inline]
 _raw_spin_lock_bh+0x139/0x1b0 kernel/locking/spinlock.c:178
 __sock_map_delete net/core/sock_map.c:416 [inline]
 sock_map_delete_elem+0x99/0x130 net/core/sock_map.c:448
 bpf_prog_8a405b5ced52e191+0x42/0xc1c
 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_run2+0xec/0x210 kernel/trace/bpf_trace.c:1917
 __bpf_trace_kfree+0x6f/0x90 include/trace/events/kmem.h:118
 trace_kfree include/trace/events/kmem.h:118 [inline]
 kfree+0x1f3/0x220 mm/slub.c:4569
 skb_free_head net/core/skbuff.c:656 [inline]
 skb_release_data+0x8a9/0xa80 net/core/skbuff.c:678
 skb_release_all net/core/skbuff.c:743 [inline]
 __kfree_skb net/core/skbuff.c:757 [inline]
 consume_skb+0xac/0x250 net/core/skbuff.c:930
 netlink_broadcast_filtered+0x10f4/0x1220 net/netlink/af_netlink.c:1540
 netlink_broadcast+0x3a/0x50 net/netlink/af_netlink.c:1562
 uevent_net_broadcast_tagged lib/kobject_uevent.c:372 [inline]
 kobject_uevent_net_broadcast+0x4f0/0x590 lib/kobject_uevent.c:412
 kobject_uevent_env+0x525/0x700 lib/kobject_uevent.c:593
 kobject_uevent+0x1f/0x30 lib/kobject_uevent.c:642
 device_add+0xa6e/0xf10 drivers/base/core.c:3385
 netdev_register_kobject+0x177/0x320 net/core/net-sysfs.c:2014
 register_netdevice+0xde9/0x1390 net/core/dev.c:10361
 register_netdev+0x3c/0x50 net/core/dev.c:10485
 loopback_net_init+0x74/0x150 drivers/net/loopback.c:216
 ops_init+0x1cf/0x4a0 net/core/net_namespace.c:135
 setup_net+0x34b/0xb50 net/core/net_namespace.c:329
 copy_net_ns+0x35c/0x5b0 net/core/net_namespace.c:473
 create_new_namespaces+0x416/0x670 kernel/nsproxy.c:110
 copy_namespaces+0x1d1/0x220 kernel/nsproxy.c:178
 copy_process+0x1174/0x3290 kernel/fork.c:2267
 kernel_clone+0x21e/0x9e0 kernel/fork.c:2662
 __do_sys_clone kernel/fork.c:2788 [inline]
 __se_sys_clone kernel/fork.c:2772 [inline]
 __x64_sys_clone+0x23f/0x290 kernel/fork.c:2772
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f899a85ba19
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:00007f8999adcff8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f899a9e9f60 RCX: 00007f899a85ba19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000630c1000
RBP: 00007f899a8cae49 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 000000000000000b R14: 00007f899a9e9f60 R15: 00007fff12f680a8
 </TASK>