watchdog: BUG: soft lockup - CPU#0 stuck for 245s! [syz.3.905:5242]
Modules linked in:
CPU: 0 PID: 5242 Comm: syz.3.905 Not tainted 5.15.161-syzkaller-00425-gb92c0d35d015 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:xfrm_lookup_with_ifid+0x1b44/0x20d0 net/xfrm/xfrm_policy.c:3159
Code: 28 00 00 00 48 3b 8c 24 c0 00 00 00 0f 85 0c 05 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 30 64 27 fd 31 c0 eb b3 <e8> 27 64 27 fd eb 05 e8 20 64 27 fd 48 8b 4c 24 40 4c 89 f0 eb a2
RSP: 0018:ffffc90000007840 EFLAGS: 00000246
RAX: 1ffff11023fb3b6c RBX: 0000000000000000 RCX: ffff88812097a780
RDX: 0000000000000101 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007950 R08: ffffffff8448f981 R09: ffffc900000078e0
R10: 0000000000000000 R11: dffffc0000000001 R12: 000000000000000a
R13: 0000000000000000 R14: ffff88811fd9db40 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2ae6cf CR3: 0000000006a0f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 xfrm_lookup+0x38/0x50 net/xfrm/xfrm_policy.c:3194
 icmp6_dst_alloc+0x4f0/0x560 net/ipv6/route.c:3293
 ndisc_send_skb+0x27f/0xc90 net/ipv6/ndisc.c:489
 ndisc_send_rs+0x532/0x6a0 net/ipv6/ndisc.c:703
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3978
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1457
 expire_timers kernel/time/timer.c:1502 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1773
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1786
 handle_softirqs+0x25e/0x5c0 kernel/softirq.c:565
 __do_softirq kernel/softirq.c:603 [inline]
 invoke_softirq kernel/softirq.c:425 [inline]
 __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:652
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:664
 sysvec_apic_timer_interrupt+0x9a/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:preempt_schedule_irq+0xc2/0x140 kernel/sched/core.c:6916
Code: 4c 89 e7 e8 c0 6a ce fc f6 44 24 21 02 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 f4 18 68 fc fb bf 01 00 00 00 <e8> e9 e3 ff ff fa bf 01 00 00 00 e8 7e 1a 68 fc 65 48 8b 1d 06 31
RSP: 0018:ffffc90000ed7420 EFLAGS: 00000246
RAX: 1ffff1102412f646 RBX: 1ffff920001dae88 RCX: ffffffff84e60e00
RDX: 1ffff1102412f4f5 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc90000ed74a8 R08: ffffffff874cc000 R09: ffffffff874cc008
R10: ffffffff874cc018 R11: ffffffff874cc010 R12: ffffc90000ed7440
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920001dae84
 irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:398
 irqentry_exit+0x30/0x40 kernel/entry/common.c:432
 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__thunk_restore+0x2/0x1c arch/x86/entry/thunk_64.S:41
Code: 50 41 50 41 51 41 52 41 53 e8 96 b0 e3 03 eb 18 55 48 89 e5 57 56 52 51 50 41 50 41 51 41 52 41 53 e8 4e b2 e3 03 eb 00 41 5b <41> 5a 41 59 41 58 58 59 5a 5e 5f 5d c3 cc cc cc cc cc cc cc cc cc
RSP: 0018:ffffc90000ed75a8 EFLAGS: 00000246
RAX: faeab2bc84040300 RBX: ffff8881386bc498 RCX: ffffffff84e43a0e
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88812097a780
RBP: ffffc90000ed75e8 R08: dffffc0000000000 R09: ffffed102412f4f1
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881386bc440
R13: ffff8881386bc498 R14: dffffc0000000000 R15: ffff8881386bc4d0
 __raw_spin_unlock include/linux/spinlock_api_smp.h:152 [inline]
 _raw_spin_unlock+0x60/0x70 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:403 [inline]
 __dentry_kill+0x4fd/0x660 fs/dcache.c:594
 shrink_dentry_list+0x35e/0x4b0 fs/dcache.c:1177
 shrink_dcache_parent+0xc9/0x340
 do_one_tree+0x27/0xe0 fs/dcache.c:1658
 shrink_dcache_for_umount+0x7d/0x120 fs/dcache.c:1675
 generic_shutdown_super+0x69/0x2e0 fs/super.c:447
 kill_anon_super+0x3d/0x70 fs/super.c:1076
 proc_kill_sb+0x8d/0xd0 fs/proc/root.c:275
 deactivate_locked_super+0xad/0x110 fs/super.c:335
 deactivate_super+0xbe/0xf0 fs/super.c:366
 cleanup_mnt+0x45c/0x510 fs/namespace.c:1143
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1150
 task_work_run+0x129/0x190 kernel/task_work.c:164
 exit_task_work include/linux/task_work.h:32 [inline]
 do_exit+0xc48/0x2ca0 kernel/exit.c:878
 do_group_exit+0x141/0x310 kernel/exit.c:1000
 get_signal+0x7a3/0x1630 kernel/signal.c:2896
 arch_do_signal_or_restart+0xbd/0x1680 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0xa0/0xe0 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x26/0x160 kernel/entry/common.c:307
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f0d7fed3ef9
Code: Unable to access opcode bytes at RIP 0x7f0d7fed3ecf.
RSP: 002b:00007f0d7eb4d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007f0d8008bf80 RCX: 00007f0d7fed3ef9
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000006
RBP: 00007f0d7ff46b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0d8008bf80 R15: 00007ffc8d507e28
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 336 Comm: kworker/u4:3 Not tainted 5.15.161-syzkaller-00425-gb92c0d35d015 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:__sanitizer_cov_trace_pc+0x5d/0x60 kernel/kcov.c:207
Code: 0b 00 00 83 fa 02 75 21 48 8b 91 40 0b 00 00 48 8b 32 48 8d 7e 01 8b 89 3c 0b 00 00 48 39 cf 73 08 48 89 44 f2 08 48 89 3a 5d <c3> 66 90 55 48 89 e5 4c 8b 45 08 65 48 8b 15 10 0d 92 7e 65 8b 05
RSP: 0018:ffffc90005d37838 EFLAGS: 00000293
RAX: ffffffff8165badb RBX: 1ffff1103ee07af1 RCX: ffff88810b6da780
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90005d37958 R08: ffffffff8165baaa R09: ffffed103ee271d3
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff8881f703d788 R14: ffff8881f7138e80 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000002 CR3: 0000000006a0f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 on_each_cpu_cond_mask+0x40/0x80 kernel/smp.c:1135
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:1207 [inline]
 text_poke_bp_batch+0x1db/0x720 arch/x86/kernel/alternative.c:1407
 text_poke_flush arch/x86/kernel/alternative.c:1598 [inline]
 text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:1605
 arch_jump_label_transform_apply+0x15/0x30 arch/x86/kernel/jump_label.c:146
 __jump_label_update+0x36a/0x380 kernel/jump_label.c:459
 jump_label_update+0x3af/0x450 kernel/jump_label.c:830
 static_key_enable_cpuslocked+0x12f/0x250 kernel/jump_label.c:177
 static_key_enable+0x1a/0x30 kernel/jump_label.c:190
 toggle_allocation_gate+0xbf/0x460 mm/kfence/core.c:729
 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:300
 </TASK>
NMI backtrace for cpu 0
CPU: 0 PID: 5242 Comm: syz.3.905 Tainted: G             L    5.15.161-syzkaller-00425-gb92c0d35d015 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:pvclock_clocksource_read+0xc/0x6e0 arch/x86/kernel/pvclock.c:68
Code: e9 fe ff ff 22 05 9c cc f4 05 48 83 c4 20 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 <53> 48 81 ec 80 00 00 00 49 89 f8 49 be 00 00 00 00 00 fc ff df 4c
RSP: 0018:ffffc900000070d0 EFLAGS: 00000002
RAX: 0000000000000000 RBX: ffffffff8625d820 RCX: ffff88812097a780
RDX: 0000000000010501 RSI: ffffffff85a33260 RDI: ffffffff874cc000
RBP: ffffc900000070f0 R08: ffffffff817e3f79 R09: ffffed1024c273d6
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000000 R14: ffff8881f70272f0 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2ae6cf CR3: 0000000006a0f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 kvm_clock_read arch/x86/kernel/kvmclock.c:79 [inline]
 kvm_sched_clock_read+0x18/0x40 arch/x86/kernel/kvmclock.c:91
 paravirt_sched_clock arch/x86/include/asm/paravirt.h:31 [inline]
 sched_clock+0x9/0x10 arch/x86/kernel/tsc.c:253
 sched_clock_cpu+0x18/0x3b0 kernel/sched/clock.c:371
 irqtime_account_irq+0x79/0x3c0 kernel/sched/cputime.c:65
 account_hardirq_exit include/linux/vtime.h:159 [inline]
 __irq_exit_rcu+0x18/0xf0 kernel/softirq.c:649
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:664
 sysvec_irq_work+0x46/0xb0 arch/x86/kernel/irq_work.c:17
 asm_sysvec_irq_work+0x1b/0x20 arch/x86/include/asm/idtentry.h:664
RIP: 0010:__dev_forward_skb+0x22/0x30 net/core/dev.c:2201
Code: 84 00 00 00 00 00 66 90 55 48 89 e5 41 56 53 49 89 f6 48 89 fb e8 de 47 8a fd 48 89 df 4c 89 f6 ba 01 00 00 00 e8 0e 00 00 00 <5b> 41 5e 5d c3 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 41 56
RSP: 0018:ffffc900000072c8 EFLAGS: 00000296
RAX: 0000000000000000 RBX: ffff888106dae000 RCX: ffff88812097a780
RDX: 0000000000000501 RSI: ffffffff871156f0 RDI: 0000000000000000
RBP: ffffc900000072d8 R08: 0000000000000003 R09: ffffffff83e61b99
R10: 0000000000000002 R11: ffff88812097a780 R12: ffff888106dae000
R13: 0000000000000000 R14: ffff88812a0fdb40 R15: ffff88812695b400
 veth_forward_skb drivers/net/veth.c:295 [inline]
 veth_xmit+0x315/0x930 drivers/net/veth.c:350
 __netdev_start_xmit include/linux/netdevice.h:5059 [inline]
 netdev_start_xmit include/linux/netdevice.h:5073 [inline]
 xmit_one net/core/dev.c:3624 [inline]
 dev_hard_start_xmit+0x228/0x620 net/core/dev.c:3640
 __dev_queue_xmit+0x18b4/0x2e70 net/core/dev.c:4255
 dev_queue_xmit+0x17/0x20 net/core/dev.c:4288
 neigh_resolve_output+0x6b8/0x760 net/core/neighbour.c:1504
 neigh_output include/net/neighbour.h:517 [inline]
 ip6_finish_output2+0xf95/0x16e0 net/ipv6/ip6_output.c:126
 __ip6_finish_output+0x60f/0x7c0 net/ipv6/ip6_output.c:197
 ip6_finish_output+0x31/0x210 net/ipv6/ip6_output.c:207
 NF_HOOK_COND include/linux/netfilter.h:294 [inline]
 ip6_output+0x1f7/0x4d0 net/ipv6/ip6_output.c:230
 dst_output include/net/dst.h:444 [inline]
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ndisc_send_skb+0x73e/0xc90 net/ipv6/ndisc.c:509
 ndisc_send_rs+0x532/0x6a0 net/ipv6/ndisc.c:703
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3978
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1457
 expire_timers kernel/time/timer.c:1502 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1773
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1786
 handle_softirqs+0x25e/0x5c0 kernel/softirq.c:565
 __do_softirq kernel/softirq.c:603 [inline]
 invoke_softirq kernel/softirq.c:425 [inline]
 __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:652
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:664
 sysvec_apic_timer_interrupt+0x9a/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:preempt_schedule_irq+0xc2/0x140 kernel/sched/core.c:6916
Code: 4c 89 e7 e8 c0 6a ce fc f6 44 24 21 02 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 f4 18 68 fc fb bf 01 00 00 00 <e8> e9 e3 ff ff fa bf 01 00 00 00 e8 7e 1a 68 fc 65 48 8b 1d 06 31
RSP: 0018:ffffc90000ed7420 EFLAGS: 00000246
RAX: 1ffff1102412f646 RBX: 1ffff920001dae88 RCX: ffffffff84e60e00
RDX: 1ffff1102412f4f5 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc90000ed74a8 R08: ffffffff874cc000 R09: ffffffff874cc008
R10: ffffffff874cc018 R11: ffffffff874cc010 R12: ffffc90000ed7440
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920001dae84
 irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:398
 irqentry_exit+0x30/0x40 kernel/entry/common.c:432
 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__thunk_restore+0x2/0x1c arch/x86/entry/thunk_64.S:41
Code: 50 41 50 41 51 41 52 41 53 e8 96 b0 e3 03 eb 18 55 48 89 e5 57 56 52 51 50 41 50 41 51 41 52 41 53 e8 4e b2 e3 03 eb 00 41 5b <41> 5a 41 59 41 58 58 59 5a 5e 5f 5d c3 cc cc cc cc cc cc cc cc cc
RSP: 0018:ffffc90000ed75a8 EFLAGS: 00000246
RAX: faeab2bc84040300 RBX: ffff8881386bc498 RCX: ffffffff84e43a0e
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88812097a780
RBP: ffffc90000ed75e8 R08: dffffc0000000000 R09: ffffed102412f4f1
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881386bc440
R13: ffff8881386bc498 R14: dffffc0000000000 R15: ffff8881386bc4d0
 __raw_spin_unlock include/linux/spinlock_api_smp.h:152 [inline]
 _raw_spin_unlock+0x60/0x70 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:403 [inline]
 __dentry_kill+0x4fd/0x660 fs/dcache.c:594
 shrink_dentry_list+0x35e/0x4b0 fs/dcache.c:1177
 shrink_dcache_parent+0xc9/0x340
 do_one_tree+0x27/0xe0 fs/dcache.c:1658
 shrink_dcache_for_umount+0x7d/0x120 fs/dcache.c:1675
 generic_shutdown_super+0x69/0x2e0 fs/super.c:447
 kill_anon_super+0x3d/0x70 fs/super.c:1076
 proc_kill_sb+0x8d/0xd0 fs/proc/root.c:275
 deactivate_locked_super+0xad/0x110 fs/super.c:335
 deactivate_super+0xbe/0xf0 fs/super.c:366
 cleanup_mnt+0x45c/0x510 fs/namespace.c:1143
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1150
 task_work_run+0x129/0x190 kernel/task_work.c:164
 exit_task_work include/linux/task_work.h:32 [inline]
 do_exit+0xc48/0x2ca0 kernel/exit.c:878
 do_group_exit+0x141/0x310 kernel/exit.c:1000
 get_signal+0x7a3/0x1630 kernel/signal.c:2896
 arch_do_signal_or_restart+0xbd/0x1680 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0xa0/0xe0 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x26/0x160 kernel/entry/common.c:307
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f0d7fed3ef9
Code: Unable to access opcode bytes at RIP 0x7f0d7fed3ecf.
RSP: 002b:00007f0d7eb4d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007f0d8008bf80 RCX: 00007f0d7fed3ef9
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000006
RBP: 00007f0d7ff46b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0d8008bf80 R15: 00007ffc8d507e28
 </TASK>