watchdog: BUG: soft lockup - CPU#0 stuck for 236s! [syz.4.417:2708]
Modules linked in:
CPU: 0 PID: 2708 Comm: syz.4.417 Not tainted 6.1.99-syzkaller-00049-g1fe91f863a7f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:selinux_sk_getsecid+0x4b/0xb0 security/selinux/hooks.c:5292
Code: 74 39 e8 a8 0c 2c ff 48 81 c3 90 02 00 00 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 1b 4e 73 ff 48 8b 1b 48 89 d8 <48> c1 e8 03 42 0f b6 04 38 84 c0 75 3f 8b 1b eb 0a e8 6f 0c 2c ff
RSP: 0018:ffffc90000007980 EFLAGS: 00000246
RAX: ffff88810c5afa00 RBX: ffff88810c5afa00 RCX: ffff888113791440
RDX: 0000000000000101 RSI: ffffc90000007b24 RDI: ffff8881198e6780
RBP: ffffc90000007998 R08: dffffc0000000000 R09: fffff52000000f6a
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffffffff862327e0 R14: ffffc90000007b24 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 000000000700f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 security_sk_classify_flow+0x50/0x90 security/security.c:2347
 icmpv6_flow_init+0xce/0x130 net/ipv6/icmp.c:1036
 ndisc_send_skb+0x267/0xdc0 net/ipv6/ndisc.c:488
 ndisc_send_rs+0x47d/0x5f0 net/ipv6/ndisc.c:719
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3984
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1510
 expire_timers kernel/time/timer.c:1555 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1826
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1839
 handle_softirqs+0x1db/0x650 kernel/softirq.c:617
 __do_softirq kernel/softirq.c:655 [inline]
 invoke_softirq kernel/softirq.c:472 [inline]
 __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:704
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:716
 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:finish_task_switch+0x16f/0x7b0 kernel/sched/core.c:5294
Code: 74 08 4c 89 ff e8 21 7a 6c 00 49 8b 1f 48 85 db 4c 8b 6d c0 0f 85 ce 00 00 00 4c 89 e7 e8 89 c9 cf 03 fb 49 8d 9d 48 0b 00 00 <48> 89 d8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 0f b6 04 30
RSP: 0018:ffffc900007b6dc0 EFLAGS: 00000282
RAX: 0000000080000001 RBX: ffff888113791f88 RCX: 0000000000000002
RDX: 0000000040000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc900007b6e10 R08: ffffffff819b5700 R09: fffffbfff0f2544f
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f6e37c80
R13: ffff888113791440 R14: 1ffff1103edc70fc R15: ffff8881f6e387e0
 context_switch kernel/sched/core.c:5420 [inline]
 __schedule+0xcbd/0x1560 kernel/sched/core.c:6747
 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:7059
 raw_irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:396
 irqentry_exit+0x30/0x40 kernel/entry/common.c:439
 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:update_stack_state+0x321/0x460 arch/x86/kernel/unwind_frame.c:243
Code: 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 ef e8 e6 0d 85 00 41 f6 45 00 03 4c 8b 75 b8 74 66 45 31 f6 e9 af 00 00 00 48 8b 45 d0 <4c> 8d 70 38 4c 89 f0 48 c1 e8 03 49 bf 00 00 00 00 00 fc ff df 42
RSP: 0018:ffffc900007b70d0 EFLAGS: 00000246
RAX: ffffc900007b7220 RBX: ffffc900007b7248 RCX: ffffc900007b7888
RDX: 1ffff920000f6e46 RSI: ffffc900007b7878 RDI: ffffc900007b7278
RBP: ffffc900007b7188 R08: ffffc900007b7308 R09: 0000000000000006
R10: ffffc900007b7310 R11: dffffc0000000001 R12: 1ffff920000f6e4c
R13: 0000000000000000 R14: ffffc900007b7260 R15: 0000000000000001
 unwind_next_frame+0x3cb/0x700 arch/x86/kernel/unwind_frame.c:315
 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 save_stack+0xf6/0x1e0 mm/page_owner.c:147
 __reset_page_owner+0x54/0x190 mm/page_owner.c:168
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1498 [inline]
 free_pcp_prepare mm/page_alloc.c:1572 [inline]
 free_unref_page_prepare+0x83d/0x850 mm/page_alloc.c:3498
 free_unref_page+0xb2/0x5c0 mm/page_alloc.c:3594
 free_the_page mm/page_alloc.c:798 [inline]
 __free_pages+0x61/0xf0 mm/page_alloc.c:5803
 __vunmap+0x9f3/0xb60 mm/vmalloc.c:2728
 __vfree mm/vmalloc.c:2776 [inline]
 vfree+0x5c/0x80 mm/vmalloc.c:2807
 kcov_put kernel/kcov.c:428 [inline]
 kcov_close+0x2b/0x50 kernel/kcov.c:524
 __fput+0x1e5/0x870 fs/file_table.c:320
 ____fput+0x15/0x20 fs/file_table.c:348
 task_work_run+0x24d/0x2e0 kernel/task_work.c:179
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0xbd5/0x2b80 kernel/exit.c:877
 do_group_exit+0x21a/0x2d0 kernel/exit.c:1027
 get_signal+0x169d/0x1820 kernel/signal.c:2880
 arch_do_signal_or_restart+0xb0/0x16f0 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x74/0xa0 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210
 irqentry_exit_to_user_mode+0x9/0x10 kernel/entry/common.c:316
 irqentry_exit+0x12/0x40 kernel/entry/common.c:419
 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0033:0x7ffcdf3fa7ff
Code: Unable to access opcode bytes at 0x7ffcdf3fa7d5.
RSP: 002b:00007fbf188d4018 EFLAGS: 00000202
RAX: 0000000000000010 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000005ab2 RSI: 00007fbf188d40b0 RDI: 0000000000000001
RBP: 00007fbf188d4040 R08: 00007ffcdf3f6080 R09: 00007ffcdf3f60b0
R10: 000000000001bd2e R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fbf17d35f80 R15: 00007ffcdf395558
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 15 Comm: rcub/0 Not tainted 6.1.99-syzkaller-00049-g1fe91f863a7f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:kasan_check_range+0x1bd/0x2a0 mm/kasan/generic.c:189
Code: 4d 89 d5 49 8d 5d 07 4d 85 ed 49 0f 49 dd 48 83 e3 f8 49 29 dd 74 12 41 80 39 00 0f 85 a6 00 00 00 49 ff c1 49 ff cd 75 ee 5b <41> 5c 41 5d 41 5e 41 5f 5d c3 45 84 f6 75 61 41 f7 c6 00 ff 00 00
RSP: 0018:ffffc900000f7bb0 EFLAGS: 00000256
RAX: ffff8881f6e00001 RBX: ffff888113791454 RCX: ffffffff851fb863
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8881003a2880
RBP: ffffc900000f7bd0 R08: dffffc0000000000 R09: ffffed1020074511
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11020074510
R13: 0000000000000001 R14: ffffed1020074511 R15: ffffc900000f7ce0
FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff113065000 CR3: 0000000161228000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 __kasan_check_read+0x11/0x20 mm/kasan/shadow.c:31
 instrument_atomic_read include/linux/instrumented.h:72 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 test_ti_thread_flag include/linux/thread_info.h:118 [inline]
 need_resched include/linux/sched.h:2255 [inline]
 rtmutex_spin_on_owner kernel/locking/rtmutex.c:1434 [inline]
 rt_mutex_slowlock_block+0x353/0x5a0 kernel/locking/rtmutex.c:1567
 __rt_mutex_slowlock kernel/locking/rtmutex.c:1637 [inline]
 __rt_mutex_slowlock_locked kernel/locking/rtmutex.c:1673 [inline]
 rt_mutex_slowlock+0x19c/0x480 kernel/locking/rtmutex.c:1702
 __rt_mutex_lock kernel/locking/rtmutex.c:1714 [inline]
 __rt_mutex_lock_common kernel/locking/rtmutex_api.c:31 [inline]
 rt_mutex_lock+0x145/0x210 kernel/locking/rtmutex_api.c:73
 rcu_boost kernel/rcu/tree_plugin.h:1099 [inline]
 rcu_boost_kthread+0x231/0x6e0 kernel/rcu/tree_plugin.h:1124
 kthread+0x26d/0x300 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
NMI backtrace for cpu 1
CPU: 1 PID: 2708 Comm: syz.4.417 Tainted: G             L     6.1.99-syzkaller-00049-g1fe91f863a7f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:irqtime_account_irq+0xbd/0x260 kernel/sched/cputime.c:66
Code: e8 68 05 68 00 4c 89 e0 49 2b 07 48 89 45 c0 48 b8 00 00 00 00 00 fc ff df 80 3c 03 00 74 08 4c 89 ff e8 e6 05 68 00 4d 89 27 <65> 8b 05 34 8e ad 7e 25 00 ff ff 00 44 29 e8 a9 00 00 0f 00 0f 84
RSP: 0018:ffffc900001b0510 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: 1ffff1103ede4e63 RCX: dffffc0000000000
RDX: 1ffffffff0f6d608 RSI: ffffffff87b6b05c RDI: ffffffff87b6b05d
RBP: ffffc900001b0550 R08: ffffffff87b6b040 R09: ffffffff87b6b048
R10: ffffffff87b6b058 R11: ffffffff87b6b050 R12: 0000011a9f7cf9e0
R13: 0000000000000000 R14: ffff8881f6f27308 R15: ffff8881f6f27318
FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3f2c265000 CR3: 0000000135291000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 account_hardirq_exit include/linux/vtime.h:159 [inline]
 __irq_exit_rcu+0x18/0xf0 kernel/softirq.c:701
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:716
 sysvec_apic_timer_interrupt+0x49/0xc0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:unwind_next_frame+0x3b9/0x700 arch/x86/kernel/unwind_frame.c:311
Code: 48 39 45 98 74 0b 48 8b 7d d0 e8 62 03 00 00 eb 1c 48 8b 5d d0 48 89 d8 48 c1 e8 03 80 3c 10 00 74 08 48 89 df e8 47 14 85 00 <48> 8b 03 4c 89 f7 48 89 45 d0 48 89 c6 e8 45 03 00 00 89 c1 b0 01
RSP: 0018:ffffc900001b0658 EFLAGS: 00000246
RAX: 1ffff920000361ba RBX: ffffc900001b0dd0 RCX: ffffffff879a3000
RDX: dffffc0000000000 RSI: ffffffff81622dae RDI: ffffc900007b7f48
RBP: ffffc900001b06d0 R08: ffffc900001b07c8 R09: 000000000000000a
R10: ffffc900001b07d0 R11: dffffc0000000001 R12: 0000000000000000
R13: ffffc900001b0730 R14: ffffc900001b06e0 R15: 1ffff920000360dc
 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:516
 ____kasan_slab_free+0x131/0x180 mm/kasan/common.c:241
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:249
 kasan_slab_free include/linux/kasan.h:178 [inline]
 slab_free_hook mm/slub.c:1745 [inline]
 slab_free_freelist_hook mm/slub.c:1771 [inline]
 slab_free mm/slub.c:3684 [inline]
 __kmem_cache_free+0x218/0x3b0 mm/slub.c:3697
 kfree+0x7a/0xf0 mm/slab_common.c:1009
 ip_dst_metrics_put include/net/ip.h:524 [inline]
 ip6_dst_destroy+0x8d/0x390 net/ipv6/route.c:363
 dst_destroy+0x131/0x320 net/core/dst.c:119
 dst_destroy_rcu+0x19/0x20 net/core/dst.c:140
 rcu_do_batch+0x534/0xb80 kernel/rcu/tree.c:2296
 rcu_core+0x4ee/0xf10 kernel/rcu/tree.c:2556
 rcu_core_si+0x9/0x10 kernel/rcu/tree.c:2573
 handle_softirqs+0x1db/0x650 kernel/softirq.c:617
 __do_softirq kernel/softirq.c:655 [inline]
 invoke_softirq kernel/softirq.c:472 [inline]
 __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:704
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:716
 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:finish_task_switch+0x16f/0x7b0 kernel/sched/core.c:5294
Code: 74 08 4c 89 ff e8 21 7a 6c 00 49 8b 1f 48 85 db 4c 8b 6d c0 0f 85 ce 00 00 00 4c 89 e7 e8 89 c9 cf 03 fb 49 8d 9d 48 0b 00 00 <48> 89 d8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 0f b6 04 30
RSP: 0018:ffffc900007b7220 EFLAGS: 00000282
RAX: 0000000080000001 RBX: ffff888113791f88 RCX: 0000000000000002
RDX: 0000000040000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc900007b7270 R08: ffffffff819b5700 R09: fffffbfff0f2544f
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f6f37c80
R13: ffff888113791440 R14: 1ffff1103ede70fc R15: ffff8881f6f387e0
 context_switch kernel/sched/core.c:5420 [inline]
 __schedule+0xcbd/0x1560 kernel/sched/core.c:6747
 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:7059
 raw_irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:396
 irqentry_exit+0x30/0x40 kernel/entry/common.c:439
 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:free_pcp_prepare mm/page_alloc.c:1572 [inline]
RIP: 0010:free_unref_page_prepare+0x86/0x850 mm/page_alloc.c:3498
Code: 38 05 00 41 f6 04 24 03 74 20 48 b8 00 00 00 00 00 fc ff df 80 3c 03 00 74 08 4c 89 e7 e8 f2 38 05 00 49 c7 04 24 00 00 00 00 <49> bc 00 00 00 00 00 fc ff df eb 53 49 8d 5d 08 48 89 d8 48 c1 e8
RSP: 0018:ffffc900007b7538 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: 1ffffd40009b4b53 RCX: ffffc900007b7600
RDX: 0000000000000000 RSI: 000000000013696a RDI: ffffea0004da5a80
RBP: ffffc900007b75b0 R08: dffffc0000000000 R09: fffff940009b4b57
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffea0004da5a98
R13: ffffea0004da5a80 R14: 000000000013696a R15: 0000000000000000
 free_unref_page+0xb2/0x5c0 mm/page_alloc.c:3594
 free_the_page mm/page_alloc.c:798 [inline]
 __free_pages+0x61/0xf0 mm/page_alloc.c:5803
 __vunmap+0x9f3/0xb60 mm/vmalloc.c:2728
 __vfree mm/vmalloc.c:2776 [inline]
 vfree+0x5c/0x80 mm/vmalloc.c:2807
 kcov_put kernel/kcov.c:428 [inline]
 kcov_close+0x2b/0x50 kernel/kcov.c:524
 __fput+0x1e5/0x870 fs/file_table.c:320
 ____fput+0x15/0x20 fs/file_table.c:348
 task_work_run+0x24d/0x2e0 kernel/task_work.c:179
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0xbd5/0x2b80 kernel/exit.c:877
 do_group_exit+0x21a/0x2d0 kernel/exit.c:1027
 get_signal+0x169d/0x1820 kernel/signal.c:2880
 arch_do_signal_or_restart+0xb0/0x16f0 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x74/0xa0 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210
 irqentry_exit_to_user_mode+0x9/0x10 kernel/entry/common.c:316
 irqentry_exit+0x12/0x40 kernel/entry/common.c:419
 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0033:0x7ffcdf3fa7ff
Code: Unable to access opcode bytes at 0x7ffcdf3fa7d5.
RSP: 002b:00007fbf188d4018 EFLAGS: 00000202
RAX: 0000000000000010 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000005ab2 RSI: 00007fbf188d40b0 RDI: 0000000000000001
RBP: 00007fbf188d4040 R08: 00007ffcdf3f6080 R09: 00007ffcdf3f60b0
R10: 000000000001bd2e R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fbf17d35f80 R15: 00007ffcdf395558
 </TASK>